National Physical Therapy Examination (NPTE) Quiz: Cross System Adverse Effects
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Cross System Adverse EffectsQuestion 1 of 19

A 55-year-old female is being treated for severe, chronic right arm and hand lymphedema following a mastectomy with axillary node dissection and radiation. The patient has a history of well-controlled hypertension but no known cardiac disease. After a session of manual lymphatic drainage (MLD) and aggressive upper extremity range of motion exercises, she complains of feeling 'lightheaded' and her blood pressure is 95/60 mmHg, a significant drop from her baseline of 125/80 mmHg.

This hypotensive episode is a paradoxical adverse effect of the lymphedema treatment, MOST likely caused by which neurovascular mechanism?

Rapid fluid shift into the intravascular space causing a temporary volume overload and vasovagal response.
Stimulation of the carotid sinus baroreceptors during MLD of the neck and supraclavicular regions.
Over-mobilization of inflammatory cytokines from the stagnant lymphatic fluid, causing systemic vasodilation.
Dehydration resulting from increased lymphatic flow and subsequent fluid loss.
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National Physical Therapy Examination (NPTE) Quiz

National Physical Therapy Examination (NPTE) Quiz: Cross System Adverse Effects

Practice Cross System Adverse Effects in National Physical Therapy Examination (NPTE) with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Cross System Adverse Effects, giving you a quick way to practice the rules, question types, and explanations that matter most for National Physical Therapy Examination (NPTE).

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

A 55-year-old female is being treated for severe, chronic right arm and hand lymphedema following a mastectomy with axillary node dissection and radiation. The patient has a history of well-controlled hypertension but no known cardiac disease. After a session of manual lymphatic drainage (MLD) and aggressive upper extremity range of motion exercises, she complains of feeling 'lightheaded' and her blood pressure is 95/60 mmHg, a significant drop from her baseline of 125/80 mmHg.

This hypotensive episode is a paradoxical adverse effect of the lymphedema treatment, MOST likely caused by which neurovascular mechanism?

  1. Rapid fluid shift into the intravascular space causing a temporary volume overload and vasovagal response.
  2. Stimulation of the carotid sinus baroreceptors during MLD of the neck and supraclavicular regions. (correct answer)
  3. Over-mobilization of inflammatory cytokines from the stagnant lymphatic fluid, causing systemic vasodilation.
  4. Dehydration resulting from increased lymphatic flow and subsequent fluid loss.
Explanation: The correct answer is B. MLD protocols for the upper extremity begin with clearing the central and neck lymphatic pathways. The carotid sinus, which contains baroreceptors that regulate blood pressure, is located in the neck near these pathways. Inadvertent, excessive pressure or stimulation over this area can trigger a baroreflex, leading to reflex bradycardia and vasodilation, which causes a sudden drop in blood pressure (hypotension) and associated symptoms. (A) A vasovagal response is possible, but the specific location of the neck massage points directly to carotid sinus stimulation. (C) While cytokines are present, this is not a recognized mechanism for acute hypotension. (D) Dehydration is a much slower process and would not cause an acute hypotensive event during a treatment session.

Question 2

A 65-year-old male with a history of stable atrial fibrillation, managed with an anticoagulant and a beta-blocker, is participating in physical therapy following a stroke. The session involves proprioceptive neuromuscular facilitation (PNF) D2 flexion patterns for the upper extremity, incorporating resistance and quick stretches to facilitate movement.

During a particularly strenuous set of repetitions, the patient reports feeling a 'fluttering' in his chest and appears pale. Which adverse cardiovascular event is the MOST likely complication from this neuromuscular intervention?

  1. A hypertensive crisis due to the isometric component of the exercise.
  2. A vasovagal episode triggered by the quick stretch stimulus.
  3. Conversion from stable atrial fibrillation to a rapid ventricular response. (correct answer)
  4. Orthostatic hypotension from changing positions too quickly.
Explanation: The correct answer is C. PNF techniques can be metabolically demanding. In a patient with a history of atrial fibrillation, a sudden increase in sympathetic drive and cardiac demand from strenuous exercise can cause the heart rate to increase significantly, leading to a loss of rate control. This is known as atrial fibrillation with rapid ventricular response (RVR), which can be hemodynamically compromising and cause symptoms like palpitations ('fluttering'), dizziness, and pallor. (A) While blood pressure will rise, a hypertensive crisis is less likely than a rhythm disturbance in this patient. (B) A vasovagal episode would be characterized by bradycardia and hypotension. (D) The patient's position is not described as changing, and the symptoms are tied to the exertion, not a postural change.

Question 3

A physical therapist is treating a 50-year-old male with chronic neck pain using intermittent cervical mechanical traction. The patient has a history of rheumatoid arthritis but no other significant past medical history. The traction is applied at 15 lbs with a 30-second hold and 10-second rest cycle. Partway through the session, the patient reports the sudden onset of dizziness, nausea, and blurred vision. He also has difficulty speaking clearly.

These signs and symptoms are MOST indicative of which of the following severe adverse events?

  1. An acute herniation of a cervical disc.
  2. Compression or dissection of the vertebral artery. (correct answer)
  3. Overstimulation of the sympathetic nervous system.
  4. A transient ischemic attack involving the middle cerebral artery.
Explanation: The correct answer is B. The constellation of dizziness, nausea, visual disturbances (diplopia/blurriness), and dysarthria (difficulty speaking) are hallmark signs of vertebrobasilar insufficiency (VBI). Cervical traction, especially in a patient with rheumatoid arthritis (which can cause atlantoaxial instability), can compromise the vertebral arteries as they pass through the transverse foramina of the cervical spine. This is a medical emergency. (A) A disc herniation would cause radicular pain, numbness, or weakness in the arm, not these specific VBI symptoms. (C) Sympathetic overstimulation would cause tachycardia and anxiety. (D) While the symptoms are those of a TIA, the mechanism of injury (cervical traction) and the specific cluster of symptoms strongly point to the posterior (vertebrobasilar) circulation, not the anterior circulation (e.g., middle cerebral artery), which would more likely cause hemiparesis or aphasia.

Question 4

A 72-year-old male with severe bilateral knee osteoarthritis and stable Class II congestive heart failure (ejection fraction 40%) is participating in an aquatic therapy program. The pool temperature is maintained at 92°F (33.3°C). Fifteen minutes into a session of gentle range of motion and walking exercises, the patient reports a sudden feeling of profound fatigue and becomes noticeably short of breath.

The patient's acute cardiopulmonary decompensation is MOST likely precipitated by the combination of which two effects of water immersion?

  1. Increased work of breathing from hydrostatic pressure and increased diuresis from stimulation of atrial natriuretic peptide.
  2. Peripheral vasoconstriction from cool water and increased psychological stress from the aquatic environment.
  3. Increased central venous pressure from hydrostatic pressure and peripheral vasodilation from the warm water. (correct answer)
  4. Decreased heart rate response due to the dive reflex and decreased buoyancy leading to greater muscle effort.
Explanation: The correct answer is C. Water immersion creates two simultaneous cardiovascular challenges for a patient with CHF. First, hydrostatic pressure displaces blood from the peripheral vessels to the trunk, increasing central venous pressure and cardiac preload. Second, the warm water causes peripheral vasodilation to dissipate heat, which decreases systemic vascular resistance (afterload) but necessitates an increase in cardiac output to maintain blood pressure. This dual challenge of increased preload and the required increase in cardiac output can overwhelm a compromised ventricle (EF 40%), leading to acute decompensation and pulmonary congestion. (A) While the work of breathing is increased, it is the cardiac effect that is primary; diuresis is a slower process. (B) The water is warm, causing vasodilation, not vasoconstriction. (D) The dive reflex is more pronounced with cold water and facial immersion; buoyancy decreases, not increases, muscle effort.

Question 5

A 75-year-old female with a history of medically managed carotid artery stenosis (50% occlusion) and hypertension is being treated for right posterior canal benign paroxysmal positional vertigo (BPPV). The physical therapist initiates the Epley maneuver. As the patient is moved from the long-sitting to the supine head-right position, she experiences intense vertigo.

Which of the following additional findings during the maneuver would necessitate IMMEDIATE cessation of the treatment and an emergency medical consultation?

  1. The patient reports significant nausea accompanying the vertigo.
  2. Observation of a 15-second burst of torsional, upbeating nystagmus.
  3. The patient complains of a sudden, severe headache and exhibits slurred speech. (correct answer)
  4. A transient increase in blood pressure to 160/95 mmHg during the position change.
Explanation: The correct answer is C. Sudden severe headache and slurred speech are hallmark signs of a cerebrovascular accident (CVA) or transient ischemic attack (TIA). The combined extension and rotation of the cervical spine during the Epley maneuver can compromise blood flow in the vertebral or carotid arteries, especially in a patient with known stenosis. This represents a critical cardiovascular complication. (A) and (B) are the expected and classic signs of successful BPPV treatment, indicating otoconia movement within the semicircular canal. (D) represents a transient hypertensive response, which could be due to anxiety or the change in position, but is less specific for an acute CVA than the neurological signs in C.

Question 6

An 82-year-old female with moderate congestive heart failure (CHF) and chronic venous insufficiency is undergoing complete decongestive therapy (CDT) for new-onset stage 2 lymphedema of the right lower extremity. After two sessions of manual lymphatic drainage and application of multi-layer short-stretch compression bandages, the patient reports increased difficulty breathing at night.

The patient's new symptom is MOST likely an adverse effect caused by which physiological mechanism?

  1. An allergic reaction to the materials in the compression bandages.
  2. Over-mobilization of lymphatic fluid, leading to acute fluid overload on a compromised cardiovascular system. (correct answer)
  3. Increased intrathoracic pressure from the bandages limiting diaphragmatic excursion during sleep.
  4. Development of a pulmonary embolism from a deep vein thrombosis dislodged during manual drainage.
Explanation: The correct answer is B. CDT mobilizes a significant volume of interstitial fluid from the limb back into the central circulation. In a patient with compensated but compromised cardiac function (CHF), this rapid increase in intravascular volume (preload) can overwhelm the heart's pumping capacity, leading to acute decompensation and pulmonary edema. The symptom of nocturnal dyspnea (paroxysmal nocturnal dyspnea) is a classic sign of this. (A) would present with localized skin changes, not systemic symptoms like dyspnea. (C) is not plausible as lower extremity bandages do not restrict the diaphragm. (D) is a risk, but acute fluid overload is a more direct and common complication of CDT in patients with CHF.

Question 7

A 65-year-old male is 2 days post-colectomy and is being instructed in deep breathing exercises and incentive spirometry to prevent atelectasis. The patient has no significant cardiac or neurological history. During a bout of 10 rapid, deep breaths, he reports feeling dizzy, lightheaded, and a tingling sensation around his mouth and in his fingertips.

These acute neurological symptoms are MOST likely the result of an adverse change in which of the following physiological parameters?

  1. A sharp decrease in systolic blood pressure due to the Valsalva effect.
  2. A transient decrease in cerebral perfusion due to postural hypotension.
  3. Increased partial pressure of carbon dioxide (PaCO2) causing cerebral vasodilation.
  4. Decreased partial pressure of carbon dioxide (PaCO2) causing cerebral vasoconstriction. (correct answer)
Explanation: The correct answer is D. Rapid, deep breathing (hyperventilation) causes an excessive 'blowing off' of CO2, leading to a decrease in arterial PaCO2. This condition, known as respiratory alkalosis, causes cerebral vasoconstriction, reducing blood flow to the brain and resulting in dizziness and lightheadedness. The alkalosis also lowers the ionization of calcium, increasing neuromuscular excitability and causing the characteristic perioral and peripheral paresthesias (tingling). (A) The Valsalva effect would be associated with bearing down, not deep breathing. (B) Postural hypotension is related to changes in position, not the breathing pattern itself. (C) Hypercapnia (increased PaCO2) would result from hypoventilation, not hyperventilation, and while it causes vasodilation, the clinical picture would be different (e.g., headache, drowsiness).

Question 8

A 58-year-old male with Type 1 diabetes and a right frozen shoulder is receiving physical therapy. To manage pain during aggressive stretching, the therapist applies iontophoresis with a 0.4% dexamethasone solution over the anterior shoulder capsule. The patient monitors his blood glucose levels regularly. He reports that for the past two days, following his PT sessions, his blood glucose readings have been consistently 50-70 mg/dL higher than his typical baseline.

What is the MOST likely cause of the patient's elevated blood glucose levels?

  1. Pain from the stretching intervention is causing a stress-induced hyperglycemia.
  2. The electrical current from the iontophoresis is interfering with his insulin pump.
  3. Systemic absorption of the dexamethasone is exerting a corticosteroid effect. (correct answer)
  4. The patient is likely decreasing his activity level due to shoulder pain, causing insulin resistance.
Explanation: The correct answer is C. Dexamethasone is a potent corticosteroid. Although iontophoresis is intended for local delivery, a portion of the medication can be absorbed systemically. Corticosteroids are known to cause hyperglycemia by increasing gluconeogenesis in the liver and promoting insulin resistance. In a patient with Type 1 diabetes, this effect can be clinically significant, leading to elevated blood glucose levels. (A) While severe pain can cause a stress response that raises glucose, it is less likely to cause a consistent elevation pattern timed with the intervention. (B) Standard iontophoresis currents are typically not strong enough to interfere with modern insulin pumps, though this is a standard precaution to consider. (D) It is more likely that physical therapy is increasing his activity level, not decreasing it.

Question 9

A 79-year-old patient with severe osteoporosis and kyphosis is receiving postural drainage with manual percussion in the posterior basal segment position for clearance of retained secretions. The patient has a history of multiple vertebral compression fractures. During the percussion, the patient reports a sudden, sharp, localized pain in her left lower rib cage.

The intervention should be stopped immediately due to the high suspicion of which adverse musculoskeletal event?

  1. Aggravation of a costovertebral joint sprain.
  2. A localized muscle contusion from the percussion force.
  3. An iatrogenic rib fracture. (correct answer)
  4. Intercostal muscle tearing from a forceful cough.
Explanation: The correct answer is C. Manual percussion, a pulmonary intervention, involves rhythmic clapping on the chest wall. In a patient with severe osteoporosis, the bones lack density and are highly susceptible to fracture with minimal trauma. The force of the percussion can be sufficient to cause a rib fracture, which would present as a sudden, sharp, localized pain. (A) A joint sprain is possible but a fracture is a more significant and likely risk in this specific population. (B) A contusion would be more superficial and less likely to cause sharp, intense pain. (D) While possible, the pain occurred during the percussion, making a direct iatrogenic injury the most likely cause.

Question 10

A patient with a C6 spinal cord injury (ASIA A) is undergoing rehabilitation. During a session focused on transfer training that involves significant upper body effort, the patient suddenly develops a pounding headache, profuse sweating above the level of the lesion, and blotchy red skin on his face and neck. His blood pressure, which is typically 90/60 mmHg, is measured at 170/110 mmHg.

This medical emergency is an adverse cardiovascular response MOST likely triggered by what noxious stimulus related to the musculoskeletal exertion?

  1. Overstretching of a spastic muscle group in the lower extremities. (correct answer)
  2. A delayed onset of exercise-induced orthostatic hypotension.
  3. An acute anxiety attack related to the difficulty of the transfer.
  4. A strong, sustained contraction of the abdominal muscles during the transfer.
Explanation: The correct answer is A. The patient is experiencing autonomic dysreflexia, a life-threatening condition in individuals with SCI at T6 or above. It is caused by a noxious stimulus below the level of the injury, which triggers a massive sympathetic response, leading to vasoconstriction and a rapid rise in blood pressure. Common triggers include bladder distention, bowel impaction, or aggressive musculoskeletal stimuli like overstretching a spastic muscle. (B) The patient's blood pressure is severely elevated, which is the opposite of hypotension. (C) While anxiety can raise blood pressure, it does not typically produce the full constellation of autonomic dysreflexia signs. (D) With a C6 injury, the patient would have minimal to no voluntary control over their abdominal muscles, making a strong, sustained contraction unlikely to be the trigger.

Question 11

A 14-year-old competitive soccer player is being treated for patellar tendonitis. The physical therapist decides to apply continuous therapeutic ultrasound at 1.5 W/cm² for 5 minutes to the area of the tibial tuberosity to promote tissue healing. The patient has no other medical conditions.

The application of this modality to this specific anatomical location constitutes a significant risk for which of the following long-term adverse musculoskeletal effects?

  1. Development of heterotopic ossification in the patellar tendon.
  2. Premature closure of the epiphyseal growth plate. (correct answer)
  3. Acute periosteal burn and subsequent inflammation.
  4. Decreased tendon tensile strength due to collagen degradation.
Explanation: The correct answer is B. The tibial tuberosity in a 14-year-old is an active apophysis, which is a type of epiphyseal growth plate. Continuous ultrasound, a thermal modality, is absolutely contraindicated over active growth plates because the thermal energy can damage the chondrocytes and cause premature closure, potentially leading to a limb length discrepancy or angular deformity. This is a critical safety consideration. (A) Heterotopic ossification is bone formation in soft tissue, not typically caused by ultrasound. (C) A periosteal burn is an acute risk of ultrasound if the transducer is held stationary, but the long-term risk to the growth plate is more significant. (D) While thermal energy can affect collagen, the primary contraindication in this case is the growth plate.

Question 12

A 70-year-old male is 3 days post-posterior approach total hip arthroplasty and is receiving rivaroxaban for DVT prophylaxis. His mobility is limited due to pain and fear of dislocation. During a physical therapy session focused on bed mobility, he suddenly complains of pleuritic chest pain, shortness of breath, and his oxygen saturation drops from 97% to 89%.

This acute cardiopulmonary event is MOST likely an adverse complication stemming from which of the following conditions, despite the prophylactic medication?

  1. Atelectasis from splinting due to incisional pain.
  2. Anxiety-induced hyperventilation.
  3. Myocardial infarction secondary to surgical stress.
  4. A pulmonary embolism. (correct answer)
Explanation: When evaluating acute cardiopulmonary symptoms in post-surgical orthopedic patients, you need to consider the classic triad of risk factors for thromboembolism: immobility, surgical trauma, and hypercoagulability (Virchow's triad). This patient hits all three despite receiving prophylactic anticoagulation. The combination of pleuritic chest pain, dyspnea, and oxygen desaturation represents the classic presentation of pulmonary embolism (PE). While rivaroxaban significantly reduces DVT/PE risk, it doesn't eliminate it entirely—breakthrough events can still occur, especially in high-risk patients like this 70-year-old with major orthopedic surgery and prolonged immobility. The sudden onset and specific symptom constellation strongly suggests PE, making D correct. Looking at the distractors: A is incorrect because while atelectasis can cause dyspnea and decreased oxygen saturation, it typically doesn't present with acute pleuritic chest pain and usually develops more gradually. B is wrong because anxiety-induced hyperventilation would cause respiratory alkalosis and typically increases oxygen saturation initially, not the hypoxemia seen here. C is incorrect because myocardial infarction would more likely present with substernal chest pressure rather than pleuritic pain, and the oxygen desaturation pattern doesn't fit the typical MI presentation. Remember that prophylactic anticoagulation reduces but doesn't eliminate PE risk in high-risk surgical patients. On the NPTE, when you see the combination of recent orthopedic surgery, immobility, and acute onset of pleuritic chest pain with hypoxemia, think PE first—even with anticoagulation on board.

Question 13

A patient with a large granulating wound on their back is being treated with a silver sulfadiazine-based topical cream. The patient has no known allergies. After several days of continuous application, the patient's routine blood work shows a white blood cell (WBC) count of 3,200 cells/mm³ (normal range: 4,500-11,000 cells/mm³).

The change in the patient's laboratory values is MOST likely an adverse systemic effect related to the topical wound care, specifically known as:

  1. Transient leukopenia. (correct answer)
  2. Argyria.
  3. Methemoglobinemia.
  4. Systemic candidiasis.
Explanation: When evaluating adverse effects from topical medications, remember that even topical agents can cause systemic complications, especially with large wounds where absorption is increased. Silver sulfadiazine is a common antimicrobial cream, but it carries specific risks you need to recognize. The patient's WBC count of 3,200 cells/mm³ indicates leukopenia (low white blood cell count), which is a well-documented adverse effect of silver sulfadiazine. This occurs because sulfadiazine can suppress bone marrow function, temporarily reducing white blood cell production. The "transient" nature means this effect is usually reversible once the medication is discontinued. Given the timeline of "several days of continuous application" and the lab findings, this directly points to answer A. Let's examine why the other options don't fit: B) Argyria is a blue-gray skin discoloration from silver accumulation, but the question asks about the laboratory changes, not skin color. C) Methemoglobinemia involves altered hemoglobin that can't carry oxygen effectively - while possible with sulfadiazine, the lab value given is WBC count, not methemoglobin levels. D) Systemic candidiasis would more likely cause elevated WBC count as the body fights infection, not the decreased count shown. For the NPTE, remember that silver sulfadiazine's most significant systemic adverse effect is bone marrow suppression leading to leukopenia. This is why patients on prolonged silver sulfadiazine therapy need regular CBC monitoring. Always connect medication side effects to the specific lab values or symptoms presented in the question.

Question 14

A 32-year-old female who is 10 weeks postpartum is attending physical therapy for persistent diastasis recti and stress urinary incontinence. The plan of care includes progressive transverse abdominis and pelvic floor muscle training. After three weeks of intensive training, she reports a new symptom of a constant sensation of incomplete bladder emptying and a weak, intermittent urinary stream.

This change in urinary function is MOST likely an adverse effect resulting from the development of which neuromuscular condition?

  1. Pelvic organ prolapse due to increased intra-abdominal pressure.
  2. A urinary tract infection secondary to poor hygiene during exercise.
  3. Pudendal nerve entrapment from overuse of deep hip rotator muscles.
  4. Hypertonicity of the pelvic floor muscles leading to obstructive voiding. (correct answer)
Explanation: When evaluating postpartum urinary dysfunction in physical therapy, you need to understand that pelvic floor muscle training can sometimes overcorrect, leading to muscle hypertonicity rather than balanced function. The patient's new symptoms - constant sensation of incomplete bladder emptying and weak, intermittent urinary stream - are classic signs of obstructive voiding. After three weeks of intensive pelvic floor training, her muscles have likely become hypertonic, meaning they're contracting too much and unable to relax properly during urination. This creates a functional obstruction that prevents complete bladder emptying and reduces urinary flow strength. Answer D correctly identifies this hypertonicity as the cause. Overly tight pelvic floor muscles can't coordinate the relaxation needed for normal voiding, resulting in the obstructive symptoms described. Answer A is incorrect because pelvic organ prolapse typically causes symptoms like pelvic pressure and bulging, not the obstructive voiding pattern described. Additionally, proper pelvic floor training should reduce prolapse risk, not increase it. Answer B doesn't fit because urinary tract infections cause irritative symptoms like urgency, frequency, and burning - not the obstructive pattern of incomplete emptying and weak stream. Answer C is wrong because pudendal nerve entrapment would cause numbness, pain, or weakness in the perineal area, not the specific obstructive voiding symptoms presented. Remember: Pelvic floor muscle training requires balance. Too little activity causes incontinence, but excessive training can create hypertonicity and obstructive symptoms. Always monitor patients for both under- and over-training effects.

Question 15

A patient is 3 months post-stroke and is enrolled in a 3-week intensive constraint-induced movement therapy (CIMT) program for his affected upper extremity. He is highly motivated but is becoming increasingly withdrawn, irritable, and expresses feelings of hopelessness to the therapist, stating, 'I'll never get my arm back, this is just making me realize how useless it is.'

This patient's change in mood is a recognized adverse psychological effect of CIMT, primarily attributed to which aspect of the intervention?

  1. Intense frustration and perceived failure during challenging, repetitive task practice. (correct answer)
  2. Learned non-use that is resistant to the therapeutic approach.
  3. Excessive physical fatigue from the high repetition of tasks.
  4. Social isolation due to the time commitment required for the program.
Explanation: When you encounter questions about adverse effects of specific rehabilitation interventions like CIMT, focus on understanding the core mechanisms of the treatment and how they might psychologically impact patients. CIMT involves constraining the unaffected limb while engaging the affected limb in intensive, repetitive task practice for several hours daily. The correct answer is A because this approach forces patients to repeatedly attempt tasks that highlight their functional limitations. When patients struggle with activities they could previously perform easily, the constant confrontation with their deficits can trigger feelings of failure and frustration. The intensity and repetitive nature of CIMT makes these perceived failures particularly pronounced, leading to withdrawal, irritability, and hopelessness as described in this case. Option B misunderstands learned non-use - while this phenomenon can be resistant to treatment, it's not the primary cause of the psychological distress described. Option C incorrectly attributes the mood changes to physical fatigue rather than the psychological impact of perceived failure during task attempts. Option D suggests social isolation from time commitment, but CIMT programs typically involve significant therapist interaction, and the patient's specific statements about his arm being "useless" point to task-related frustration rather than isolation. For NPTE questions about intervention adverse effects, always connect the patient's specific psychological response to the unique characteristics of the treatment approach. CIMT's defining feature is intensive practice that can highlight deficits, making frustration from perceived failure the most likely psychological complication.

Question 16

A patient with a T10 complete spinal cord injury has been fitted for bilateral knee-ankle-foot orthoses (KAFOs) for therapeutic ambulation. The patient has impaired sensation below the umbilicus. After a 30-minute session in the parallel bars, the physical therapist removes the KAFOs and notes a well-demarcated, erythematous area over the patient's right fibular head that does not blanch with pressure.

This skin finding is MOST indicative of which of the following adverse integumentary complications?

  1. A stage 1 pressure injury. (correct answer)
  2. A superficial contact dermatitis.
  3. Reactive hyperemia.
  4. A deep tissue injury.
Explanation: The correct answer is A. A stage 1 pressure injury is defined as intact skin with a localized area of non-blanchable erythema. This indicates tissue damage has begun due to prolonged pressure from the orthosis, a piece of assistive technology. The location over a bony prominence (fibular head) and the insensate nature of the patient's skin are classic risk factors. (B) Contact dermatitis would likely be more diffuse and associated with itching. (C) Reactive hyperemia is a normal, temporary redness that occurs after pressure is relieved and it does blanch, indicating that no tissue damage has occurred. (D) A deep tissue injury would present as a purple or maroon localized area of discolored intact skin or a blood-filled blister, indicating more severe damage to underlying soft tissue.

Question 17

A 45-year-old female with a diagnosis of Ehlers-Danlos syndrome, hypermobility type, is referred for physical therapy for chronic thoracic pain. The therapist performs a grade IV high-velocity, low-amplitude thrust manipulation to the T6-T7 segment. The patient experiences immediate relief but calls the clinic two hours later complaining of a new, sharp pain with deep inspiration and progressive shortness of breath.

Given the patient's underlying condition and the intervention performed, these new symptoms are MOST concerning for which of the following iatrogenic complications?

  1. A severe muscle spasm of the intercostal muscles.
  2. Fracture of the transverse process of the thoracic vertebra.
  3. Irritation of the dorsal nerve root at the manipulated segment.
  4. A pneumothorax secondary to pleural puncture. (correct answer)
Explanation: The correct answer is D. A pneumothorax is a rare but serious complication of thoracic spinal manipulation where the pleura and lung are punctured, causing air to leak into the pleural space. This leads to lung collapse, causing pleuritic chest pain (sharp pain with breathing) and dyspnea. Patients with connective tissue disorders like Ehlers-Danlos syndrome may have more fragile tissues, potentially increasing this risk. (A) A muscle spasm would cause localized pain but is less likely to cause progressive dyspnea. (B) A transverse process fracture is possible but typically presents with localized, non-pleuritic pain. (C) Nerve root irritation would cause radicular symptoms (pain radiating in a dermatomal pattern), not primarily respiratory distress.

Question 18

A patient with a large, heavily draining venous stasis ulcer on the medial malleolus is being treated with whirlpool debridement. The patient is positioned in sitting with the leg in a dependent position in the whirlpool tank for 20 minutes. The patient has a significant history of chronic venous insufficiency.

Following the whirlpool treatment, which of the following findings would be an expected adverse effect of this specific modality and patient positioning?

  1. A decrease in periwound maceration due to the drying effect of the water.
  2. A significant increase in lower extremity edema. (correct answer)
  3. The development of arterial insufficiency signs such as pallor and coolness.
  4. A decrease in the bacterial load in the wound bed.
Explanation: The correct answer is B. The combination of a dependent position and the warmth of the whirlpool water causes significant peripheral vasodilation and increased hydrostatic pressure. In a patient with already compromised venous return due to chronic venous insufficiency, this will exacerbate fluid leakage into the interstitial space, leading to a marked increase in edema. This is a significant adverse cardiovascular/lymphatic effect. (A) Whirlpools often increase, not decrease, maceration. (C) Arterial insufficiency is not caused by this intervention; in fact, the warmth would temporarily improve arterial flow. (D) While whirlpools were once thought to clean wounds, they are now known to be non-selective and can aerosolize bacteria, potentially increasing the risk of infection. The most certain and direct adverse effect is increased edema.

Question 19

A 68-year-old male is receiving physical therapy 4 weeks after a total knee arthroplasty. He has a history of type 2 diabetes mellitus with moderate peripheral neuropathy in his feet. His primary impairment is a knee flexion contracture, with active range of motion limited to 85 degrees. The physical therapist performs a prolonged, low-load stretch into flexion at the end of the session. The next day, the patient calls to report new symptoms.

Which of the following new symptoms is MOST indicative of an iatrogenic complication resulting from the stretching intervention?

  1. Increased diffuse warmth and effusion around the knee joint.
  2. Aching pain in the posterior calf that subsides with rest.
  3. Numbness over the dorsum of the foot and weakness with ankle dorsiflexion. (correct answer)
  4. Hypersensitivity and a burning sensation localized to the surgical incision.
Explanation: The correct answer is C. Prolonged or aggressive knee flexion stretching can compress the common peroneal (fibular) nerve as it wraps around the fibular head. This can lead to a nerve palsy, presenting with sensory loss in the nerve's distribution (dorsum of the foot) and weakness in the muscles it innervates (ankle dorsiflexors, everters). The patient's pre-existing diabetic neuropathy makes the nerve more vulnerable to compression. (A) describes a localized inflammatory response, which is a common musculoskeletal effect of aggressive stretching, but less critical than a neurological injury. (B) suggests muscular fatigue, a common and expected musculoskeletal response. (D) points to incisional nerve irritation or early complex regional pain syndrome, which is possible but less directly tied to the specific mechanical stress of deep flexion stretching on the peroneal nerve.