National Physical Therapy Examination (NPTE) Quiz: Integrating Diagnostic Tests
20 questions · exam conditions
0:00
Integrating Diagnostic TestsQuestion 1 of 20

A 12-year-old boy presents with calf pseudohypertrophy, a positive Gower's sign, and progressive proximal weakness. A serum creatine kinase (CK) level is reported as 25,000 U/L (normal <200 U/L). Genetic testing confirms a diagnosis of Duchenne muscular dystrophy (DMD). An echocardiogram report notes early signs of dilated cardiomyopathy with a mildly reduced ejection fraction.

Given this complete diagnostic picture, what is the MOST important long-term focus for physical therapy management and family education?

Preservation of pulmonary function and management of cardiac comorbidities.
Stretching of the gastrocnemius-soleus complex to prevent equinovarus contractures.
Aggressive resistance training of the lower extremities to delay the loss of ambulation.
Fitting for knee-ankle-foot orthoses (KAFOs) to maintain stability for standing.
← Back to quizzes

National Physical Therapy Examination (NPTE) Quiz

National Physical Therapy Examination (NPTE) Quiz: Integrating Diagnostic Tests

Practice Integrating Diagnostic Tests 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 Integrating Diagnostic Tests, 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 12-year-old boy presents with calf pseudohypertrophy, a positive Gower's sign, and progressive proximal weakness. A serum creatine kinase (CK) level is reported as 25,000 U/L (normal <200 U/L). Genetic testing confirms a diagnosis of Duchenne muscular dystrophy (DMD). An echocardiogram report notes early signs of dilated cardiomyopathy with a mildly reduced ejection fraction.

Given this complete diagnostic picture, what is the MOST important long-term focus for physical therapy management and family education?

  1. Preservation of pulmonary function and management of cardiac comorbidities. (correct answer)
  2. Stretching of the gastrocnemius-soleus complex to prevent equinovarus contractures.
  3. Aggressive resistance training of the lower extremities to delay the loss of ambulation.
  4. Fitting for knee-ankle-foot orthoses (KAFOs) to maintain stability for standing.
Explanation: When you encounter Duchenne muscular dystrophy (DMD) questions on the NPTE, remember this is a progressive, multisystem disorder where respiratory and cardiac complications ultimately determine prognosis and quality of life. The key is recognizing that while mobility issues are visible early, life-threatening complications develop from pulmonary and cardiac involvement. The correct answer is A because DMD inevitably leads to respiratory muscle weakness and cardiomyopathy (already evident in this case with reduced ejection fraction). These become the primary causes of morbidity and mortality, typically in the second or third decade of life. Long-term physical therapy management must prioritize airway clearance techniques, breathing exercises, and monitoring cardiac function alongside activity tolerance. Family education about recognizing respiratory infections and cardiac symptoms is crucial for preventing life-threatening complications. Option B, while gastrocnemius-soleus stretching is important for contracture prevention, addresses only one specific impairment rather than the broader life-threatening issues. Option C reflects a common misconception—aggressive resistance training is contraindicated in DMD as it can accelerate muscle damage and inflammation. The goal is activity maintenance, not strengthening. Option D focuses on orthotic management, which may be relevant during the ambulatory phase but isn't the most critical long-term consideration given the progressive nature of the disease. For NPTE success with neuromuscular disorders, always consider the natural disease progression and identify which complications pose the greatest threat to survival and quality of life. Respiratory and cardiac management typically take precedence over mobility concerns in progressive conditions like DMD.

Question 2

A 71-year-old 4 weeks post-knee replacement has persistent swelling; X-ray shows mild OA in other compartments; WBC 14.5 × 10^3/µL, ESR 60 mm/hr, CRP 22 mg/L; temperature 38.2°C. Based on the patient's X-ray and lab results, what is the most appropriate intervention?

  1. Advance to closed-chain strengthening with high loads
  2. Pause therapy and refer urgently for possible joint infection (correct answer)
  3. Perform aggressive joint mobilizations to reduce stiffness
  4. Treat as normal post-op inflammation and continue
Explanation: This question tests NPTE skills in integrating diagnostic imaging, laboratory values, and medical tests into physical therapy decision-making. Integrating diagnostic information is crucial for accurate therapy planning and involves understanding how each element (imaging, labs, tests) informs treatment. The specific scenario describes a patient with persistent swelling post-knee replacement, where the imaging shows mild OA, and lab values indicate elevated WBC, ESR, CRP, and fever. Choice B is correct because it aligns with how inflammatory markers suggest infection requiring referral, demonstrating proper integration into decision-making. Choice D is incorrect due to overlooking signs of infection as normal, often resulting when students downplay lab elevations. Teaching strategies include practicing with case studies that combine multiple diagnostic elements, focusing on correlating test results with functional outcomes, and reinforcing standard protocols for interpreting common conditions.

Question 3

A 52-year-old with BMI 36 has fatigue; CT abdomen notes fatty liver; fasting glucose 155 mg/dL and triglycerides 280 mg/dL; resting BP 160/96 mmHg; EKG normal. Based on the patient's imaging and lab results, what is the most appropriate intervention?

  1. Begin high-intensity intervals without monitoring
  2. Start moderate aerobic exercise with BP and glucose monitoring (correct answer)
  3. Avoid exercise due to fatty liver findings
  4. Use only passive modalities for fatigue management
Explanation: This question tests NPTE skills in integrating diagnostic imaging, laboratory values, and medical tests into physical therapy decision-making. Integrating diagnostic information is crucial for accurate therapy planning and involves understanding how each element (imaging, labs, tests) informs treatment. The specific scenario describes a patient with high BMI and fatigue, where the imaging shows fatty liver, and lab values indicate elevated glucose and triglycerides with high BP. Choice B is correct because it aligns with how metabolic and cardiovascular risks require monitored moderate exercise, demonstrating proper integration into decision-making. Choice A is incorrect due to high-intensity being unsafe without monitoring in this profile, often resulting when students underestimate comorbid risks. Teaching strategies include practicing with case studies that combine multiple diagnostic elements, focusing on correlating test results with functional outcomes, and reinforcing standard protocols for interpreting common conditions.

Question 4

A 69-year-old has dyspnea during gait training; EKG shows atrial fibrillation with RVR, chest X-ray normal, ABG shows SaO2 90%; troponin is negative. Considering the EKG findings, what should be the next step in management?

  1. Continue therapy at the same intensity
  2. Stop session and notify medical team for rate control (correct answer)
  3. Switch to prone positioning to improve ventilation
  4. Add resisted Valsalva breathing during exercise
Explanation: This question tests NPTE skills in integrating diagnostic imaging, laboratory values, and medical tests into physical therapy decision-making. Integrating diagnostic information is crucial for accurate therapy planning and involves understanding how each element (imaging, labs, tests) informs treatment. The specific scenario describes a patient with dyspnea during gait, where the EKG shows atrial fibrillation with rapid ventricular response, and lab values indicate low SaO2. Choice B is correct because it aligns with how uncontrolled arrhythmia requires medical intervention before continuing, demonstrating proper integration into decision-making. Choice A is incorrect due to risking hemodynamic instability with continued intensity, often resulting when students ignore cardiac monitoring. Teaching strategies include practicing with case studies that combine multiple diagnostic elements, focusing on correlating test results with functional outcomes, and reinforcing standard protocols for interpreting common conditions.

Question 5

A 50-year-old with fatty liver on ultrasound has A1c 9.0% and fasting glucose 190 mg/dL; resting BP 158/94 mmHg; monofilament testing shows reduced foot sensation. Which diagnostic test result most directly impacts the therapy plan?

  1. Reduced monofilament sensation in feet (correct answer)
  2. Ultrasound showing fatty liver
  3. Serum potassium 4.1 mmol/L
  4. Normal EKG
Explanation: This question tests NPTE skills in integrating diagnostic imaging, laboratory values, and medical tests into physical therapy decision-making. Integrating diagnostic information is crucial for accurate therapy planning and involves understanding how each element (imaging, labs, tests) informs treatment. The specific scenario describes a patient with fatty liver, where the imaging shows ultrasound confirmation, and tests indicate high A1c, glucose, BP, and reduced foot sensation. Choice A is correct because it aligns with how neuropathy requires protective strategies in exercise, demonstrating proper integration into decision-making. Choice B is incorrect due to fatty liver being secondary to neuropathy risks, often resulting when students prioritize imaging over sensory testing. Teaching strategies include practicing with case studies that combine multiple diagnostic elements, focusing on correlating test results with functional outcomes, and reinforcing standard protocols for interpreting common conditions.

Question 6

A 48-year-old with obesity and fatigue has ultrasound-confirmed fatty liver; fasting glucose 172 mg/dL; pre-exercise BP is 178/102 mmHg; EKG normal. Which diagnostic test result most directly impacts the therapy plan?

  1. Pre-exercise BP 178/102 mmHg (correct answer)
  2. Ultrasound showing fatty liver
  3. Normal EKG
  4. Serum sodium 140 mmol/L
Explanation: This question tests NPTE skills in integrating diagnostic imaging, laboratory values, and medical tests into physical therapy decision-making. Integrating diagnostic information is crucial for accurate therapy planning and involves understanding how each element (imaging, labs, tests) informs treatment. The specific scenario describes a patient with obesity and fatigue, where the imaging shows fatty liver, and tests indicate high fasting glucose and pre-exercise BP. Choice A is correct because it aligns with how severe hypertension requires holding or modifying exercise, demonstrating proper integration into decision-making. Choice B is incorrect due to fatty liver being less immediate than acute BP elevation, often resulting when students prioritize chronic findings. Teaching strategies include practicing with case studies that combine multiple diagnostic elements, focusing on correlating test results with functional outcomes, and reinforcing standard protocols for interpreting common conditions.

Question 7

A 59-year-old with imbalance has MRI showing cerebellar lesion; electrolytes normal; EKG normal; patient reports new severe headache and vomiting today. Considering the MRI findings, what should be the next step in management?

  1. Begin canalith repositioning maneuvers
  2. Defer therapy and send for urgent medical evaluation (correct answer)
  3. Start high-level balance tasks on foam immediately
  4. Provide cervical traction for symptom relief
Explanation: This question tests NPTE skills in integrating diagnostic imaging, laboratory values, and medical tests into physical therapy decision-making. Integrating diagnostic information is crucial for accurate therapy planning and involves understanding how each element (imaging, labs, tests) informs treatment. The specific scenario describes a patient with imbalance, where the imaging shows cerebellar lesion, and symptoms include new headache and vomiting. Choice B is correct because it aligns with how MRI lesion with acute symptoms requires urgent medical evaluation, demonstrating proper integration into decision-making. Choice A is incorrect due to potentially missing acute progression in cerebellar issues, often resulting when students assume benign causes. Teaching strategies include practicing with case studies that combine multiple diagnostic elements, focusing on correlating test results with functional outcomes, and reinforcing standard protocols for interpreting common conditions.

Question 8

A 73-year-old has dyspnea with stairs; EKG shows atrial flutter, chest X-ray normal, ABG shows PaO2 55 mmHg; SpO2 drops to 86% during walking test. Based on these results, what is the most appropriate intervention?

  1. Continue walking until symptoms resolve without rest
  2. Use interval training with supplemental O2 per orders and close monitoring (correct answer)
  3. Add breath-holding to improve endurance
  4. Avoid all activity because chest X-ray is normal
Explanation: This question tests NPTE skills in integrating diagnostic imaging, laboratory values, and medical tests into physical therapy decision-making. Integrating diagnostic information is crucial for accurate therapy planning and involves understanding how each element (imaging, labs, tests) informs treatment. The specific scenario describes a patient with dyspnea on stairs, where the EKG shows atrial flutter, and lab values indicate low PaO2 with desaturation on walking. Choice B is correct because it aligns with how hypoxemia and arrhythmia require monitored intervals with oxygen, demonstrating proper integration into decision-making. Choice A is incorrect due to risking fatigue without rest or support, often resulting when students ignore desaturation risks. Teaching strategies include practicing with case studies that combine multiple diagnostic elements, focusing on correlating test results with functional outcomes, and reinforcing standard protocols for interpreting common conditions.

Question 9

A 55-year-old female with a history of breast cancer treated with chemotherapy five months ago is referred for a resistance training program to combat fatigue. A complete blood count (CBC) from this morning shows: Hemoglobin 10.1 g/dL, Hematocrit 31%, White Blood Cell count 5,500/mm³, and Platelet count 45,000/µL.

Which modification to the plan of care is MOST critical based on these laboratory values?

  1. The patient should wear a mask during therapy due to an increased risk of infection from neutropenia.
  2. Exercise should be limited to low-intensity aerobics, as resistance training is contraindicated with this level of anemia.
  3. Resistance training should be restricted to light weights (1-2 lbs) with no strenuous muscle contraction to minimize bleeding risk. (correct answer)
  4. The session should be postponed, and the patient should be instructed to rest until hemoglobin levels rise above 12 g/dL.
Explanation: The most critical finding is the platelet count of 45,000/µL, which indicates moderate thrombocytopenia (normal is 150,000-450,000/µL). This places the patient at significant risk for bleeding and bruising with minimal trauma. Strenuous exercise and high-intensity resistance training are contraindicated. Light resistance with close monitoring is permissible, but heavy lifting is not.

Question 10

A 72-year-old male with atrial fibrillation controlled with warfarin presents for management of lumbar spinal stenosis. His goal is to increase his walking distance. His latest International Normalized Ratio (INR) is 4.2. The planned interventions include manual therapy for hip mobility, core strengthening, and treadmill walking.

Given the patient's INR level, what is the MOST appropriate course of action for the physical therapist today?

  1. Proceed with the planned interventions, as the patient is within the typical therapeutic range for atrial fibrillation.
  2. Withhold all interventions and contact the referring physician, as this INR level indicates a high risk of spontaneous bleeding. (correct answer)
  3. Perform treadmill walking and core strengthening but omit manual therapy due to the elevated risk of tissue trauma and hematoma.
  4. Administer only gentle, passive stretching and modalities for pain control, avoiding all active or resistive exercise.
Explanation: The therapeutic range for INR for a patient with atrial fibrillation is typically 2.0-3.0. An INR of 4.2 is supratherapeutic and places the patient at a very high risk for bleeding, including spontaneous bleeding or hemorrhage with minimal trauma. Any physical activity, even walking, carries risk. The safest and most appropriate action is to withhold all interventions and communicate urgently with the physician.

Question 11

A patient is 3 weeks post-total knee arthroplasty. The patient reports a sudden increase in knee pain, swelling, and warmth over the past 48 hours, along with feeling systemically unwell. Laboratory studies reveal a C-reactive protein (CRP) of 110 mg/L and an erythrocyte sedimentation rate (ESR) of 85 mm/hr. The surgical incision is well-healed with no drainage.

How should the physical therapist interpret these findings and respond?

  1. The elevated inflammatory markers are a normal part of the healing process at this stage; continue with progressive exercise as tolerated.
  2. The findings suggest a deep vein thrombosis; perform a Homan's sign and refer for a Doppler ultrasound if positive.
  3. The findings are highly suggestive of a periprosthetic joint infection; defer therapy and communicate urgently with the surgeon. (correct answer)
  4. The patient is likely experiencing complex regional pain syndrome; focus on desensitization techniques and gentle range of motion.
Explanation: While some elevation in CRP and ESR is normal post-op, these markedly high levels, combined with an acute increase in local and systemic symptoms, are red flags for a periprosthetic joint infection (PJI). PJI is a serious complication requiring immediate medical/surgical management. Continuing therapy would be harmful. Homan's sign is unreliable, and the presentation is more classic for infection than DVT or CRPS.

Question 12

A 60-year-old female with long-standing rheumatoid arthritis (RA) presents with bilateral hand pain and stiffness. Laboratory results show a positive Rheumatoid Factor (RF) and a negative anti-cyclic citrullinated peptide (anti-CCP) antibody test. Radiographs of her hands note juxta-articular osteopenia but no evidence of bony erosions.

What is the MOST accurate interpretation of these collective findings for prognosticating and planning physical therapy intervention?

  1. The negative anti-CCP and lack of erosions suggest a non-inflammatory arthropathy, so therapy should focus on aggressive strengthening.
  2. The patient likely has seronegative RA, which requires immediate referral back to the rheumatologist before any therapy is initiated.
  3. The findings are consistent with active RA, but the absence of anti-CCP antibodies and erosions suggests a more favorable long-term prognosis for joint preservation. (correct answer)
  4. The positive RF confirms a severe, erosive form of RA; therapy should be limited to splinting and modalities to prevent further joint damage.
Explanation: This patient has seropositive RA (positive RF). However, anti-CCP antibodies are more specific for RA and are associated with a more aggressive and erosive disease course. The absence of anti-CCP and erosions, despite the active inflammation indicated by symptoms and osteopenia, is a positive prognostic factor. Therapy should address the active inflammation (joint protection, energy conservation) but can be planned with the expectation of better long-term outcomes than an anti-CCP positive patient.

Question 13

A 58-year-old patient with decompensated congestive heart failure (CHF) is seen for inpatient physical therapy. The physician's goal is to begin gentle mobilization. This morning's lab report indicates a brain natriuretic peptide (BNP) level of 1200 pg/mL. The patient reports feeling 'about the same' as yesterday and exhibits 2+ pitting edema in both lower extremities.

Based on the integration of the patient's report, clinical signs, and laboratory value, what is the MOST appropriate physical therapy action?

  1. Progress to ambulation in the hallway to promote diuresis and functional improvement as ordered by the physician.
  2. Hold therapy and consult with the medical team, as the high BNP level indicates severe ventricular stretch and a high risk of hemodynamic instability with activity. (correct answer)
  3. Initiate in-bed exercises only, such as ankle pumps and gluteal sets, to minimize cardiac demand while still providing therapeutic activity.
  4. Focus the session on patient education regarding energy conservation and fluid restrictions, as the patient is too unstable for physical activity.
Explanation: A BNP level greater than 700 pg/mL is indicative of severe, decompensated heart failure. While the physician has ordered mobilization, this lab value represents a significant contraindication to increasing activity. It signifies high ventricular filling pressures and a risk of worsening failure with exertion. The therapist's responsibility is to integrate this new data and communicate the safety concern to the medical team before proceeding.

Question 14

A 70-year-old male with a history of prostate cancer treated with androgen deprivation therapy presents with a new, acute onset of severe, non-mechanical mid-thoracic back pain. The pain is constant and worse at night. His most recent prostate-specific antigen (PSA) test shows a level that has risen from 4 ng/mL to 50 ng/mL over six months.

Given this information, what is the MOST critical hypothesis that must be considered and immediately addressed by the physical therapist?

  1. The patient is likely experiencing a thoracic disc herniation, and a neurological screen should be the priority.
  2. The pain is likely a musculoskeletal side effect of hormonal therapy, and gentle mobility exercises should be initiated.
  3. The patient may have a vertebral compression fracture secondary to osteoporosis from his cancer treatment.
  4. The clinical picture strongly suggests metastatic disease to the spine, requiring immediate medical referral before any intervention. (correct answer)
Explanation: The combination of a cancer history known to metastasize to bone, a rapidly rising tumor marker (PSA), and new-onset, constant, night pain is a classic red flag presentation for spinal metastatic disease. This is a medical emergency that could lead to a pathological fracture or spinal cord compression. All other hypotheses are secondary, and the therapist's primary responsibility is to cease examination and ensure immediate communication with the oncology team.

Question 15

A 28-year-old patient with suspected Guillain-Barré syndrome (GBS) undergoes a lumbar puncture and nerve conduction studies. The cerebrospinal fluid (CSF) analysis reveals a protein level of 250 mg/dL with a normal white blood cell count. Nerve conduction velocity (NCV) studies show marked, diffuse slowing of conduction velocities and temporal dispersion of compound muscle action potentials.

How do these test results confirm the diagnosis and inform the physical therapy prognosis?

  1. The CSF findings indicate infection, and the NCV findings suggest axonal damage, leading to a poor prognosis for recovery.
  2. The combination of albuminocytologic dissociation in the CSF and demyelinating features on NCV confirms GBS and suggests a generally favorable prognosis for recovery with intervention. (correct answer)
  3. The elevated CSF protein suggests transverse myelitis, and the NCV findings are nonspecific; PT should focus on managing spasticity.
  4. The normal cell count in CSF rules out an inflammatory process, while the NCV findings point to a motor neuron disease like ALS, with a progressive decline expected.
Explanation: The classic findings for GBS are albuminocytologic dissociation (high protein, normal cell count) in the CSF and electrodiagnostic evidence of a primary demyelinating process (slowed NCV, temporal dispersion). This combination confirms the diagnosis. Because GBS is primarily a demyelinating (not axonal) process, the potential for remyelination and significant recovery is good, leading to a generally favorable prognosis, though recovery can be lengthy.

Question 16

A 62-year-old patient with a non-healing ulcer on the plantar surface of the great toe has a diagnosis of type 2 diabetes. Recent lab work shows a hemoglobin A1c (HbA1c) of 10.5% and a prealbumin level of 12 mg/dL. The wound bed is clean but has shown no change in size for 4 weeks.

What is the MOST accurate clinical conclusion based on an integration of these laboratory values?

  1. The elevated HbA1c indicates poor long-term glycemic control, which is the primary barrier to healing; the prealbumin level is adequate for wound repair.
  2. The low prealbumin level indicates significant malnutrition, which is a more immediate barrier to wound healing than the hyperglycemia.
  3. The lab values suggest acute renal failure is complicating the patient's diabetes, and this is the likely cause of impaired healing.
  4. Both the severe hyperglycemia (indicated by HbA1c) and protein malnutrition (indicated by low prealbumin) are critical factors preventing wound healing. (correct answer)
Explanation: When evaluating non-healing wounds in diabetic patients, you must assess multiple physiological factors that can impair healing. This question tests your ability to integrate laboratory values and understand how both glycemic control and nutritional status simultaneously impact wound repair. The HbA1c of 10.5% indicates severely poor long-term glucose control (normal <7% for diabetics), while the prealbumin level of 12 mg/dL represents significant protein malnutrition (normal range 15-40 mg/dL). Both values are critically abnormal and directly interfere with wound healing through different mechanisms. Chronic hyperglycemia impairs immune function, reduces collagen synthesis, and damages microvasculature. Protein malnutrition depletes the amino acids essential for tissue repair and collagen formation. These factors work synergistically to prevent healing. Choice A incorrectly suggests the prealbumin level is adequate when 12 mg/dL actually indicates severe protein deficiency. Choice B makes the error of prioritizing one factor over another when both are critically important - you cannot rank severe hyperglycemia as less significant than malnutrition in wound healing. Choice C introduces renal failure without supporting evidence; while diabetics can develop nephropathy, nothing in the lab values specifically indicates acute renal failure. The correct answer is D because it accurately identifies both critical barriers to healing without inappropriately minimizing either factor. NPTE Strategy: When analyzing wound healing in diabetic patients, always evaluate both metabolic control (HbA1c) and nutritional status (prealbumin, albumin). Avoid answers that dismiss one major contributing factor in favor of another when multiple severe abnormalities are present.

Question 17

A patient is admitted to the hospital after a multitrauma motor vehicle accident, sustaining a right femur fracture and a moderate traumatic brain injury (TBI). On day 3, the physical therapist notes the patient is afebrile but has an elevated heart rate and respiratory rate. A lab panel shows a PaO₂ of 60 mmHg and a chest x-ray reveals bilateral diffuse infiltrates. The patient's platelet count is also noted to be dropping.

These integrated clinical and diagnostic findings are most indicative of which post-traumatic complication, which would require significant modification of physical therapy intervention?

  1. Fat embolism syndrome, requiring supportive care and minimization of patient movement. (correct answer)
  2. Pulmonary embolism, requiring immediate anticoagulation and cessation of therapy.
  3. Hospital-acquired pneumonia, requiring airway clearance techniques and mobilization.
  4. Neurogenic pulmonary edema, requiring aggressive diuresis and upright positioning.
Explanation: When evaluating post-traumatic complications in patients with long bone fractures and TBI, you need to recognize classic symptom clusters that point to specific syndromes requiring different treatment approaches. The key findings here form a textbook presentation of fat embolism syndrome (FES): a patient with femur fracture developing respiratory distress (elevated heart rate and respiratory rate), hypoxemia (PaO₂ 60 mmHg), bilateral pulmonary infiltrates, and thrombocytopenia. FES occurs when fat globules from fractured bone marrow enter circulation and lodge in pulmonary capillaries, typically 24-72 hours post-injury. The classic triad includes respiratory symptoms, neurological changes, and a petechial rash, though not all must be present. Treatment focuses on supportive care and minimizing movement that could dislodge more fat emboli, making choice A correct. Choice B (pulmonary embolism) would typically present with more acute onset, unilateral findings, and wouldn't explain the thrombocytopenia or bilateral infiltrates. Choice C (hospital-acquired pneumonia) usually includes fever and wouldn't cause the rapid platelet drop. Choice D (neurogenic pulmonary edema) can occur with TBI but typically develops immediately post-injury, not on day 3, and doesn't involve thrombocytopenia. For NPTE success, memorize the FES triad and timing: respiratory distress + neurological changes + petechial rash occurring 1-3 days after long bone fractures. The presence of thrombocytopenia is a strong diagnostic clue that distinguishes FES from other pulmonary complications.

Question 18

A 52-year-old patient with a history of alcohol abuse is evaluated for bilateral lower extremity paresthesias and weakness. A nerve conduction study (NCS) shows a symmetric, length-dependent, primarily axonal sensorimotor polyneuropathy. Laboratory tests reveal an elevated mean corpuscular volume (MCV) and a deficiency in thiamine.

What is the most accurate synthesis of these findings for determining the physical therapy diagnosis and intervention strategy?

  1. The findings indicate diabetic neuropathy; intervention should focus on glycemic control education and foot care.
  2. The findings are consistent with alcoholic neuropathy; intervention should prioritize balance, fall prevention, and accommodating sensory loss. (correct answer)
  3. The findings suggest an autoimmune neuropathy like CIDP; intervention should be deferred pending immunosuppressive therapy.
  4. The findings point to entrapment neuropathy, such as tarsal tunnel syndrome; intervention should focus on nerve gliding and local modalities.
Explanation: The combination of a history of alcohol abuse, a symmetric axonal polyneuropathy on NCS, and lab findings of macrocytic anemia (elevated MCV) and thiamine deficiency is the classic presentation of alcoholic neuropathy. The primary intervention is medical (abstinence, nutritional supplementation), but the physical therapy diagnosis relates to the resulting impairments. The focus of PT should be on managing the functional consequences, such as profound sensory loss and distal weakness, which leads to a high fall risk.

Question 19

A patient undergoing cardiac rehabilitation after a myocardial infarction (MI) has a recent lipid panel with the following results: Total Cholesterol 220 mg/dL, LDL Cholesterol 140 mg/dL, HDL Cholesterol 35 mg/dL, and Triglycerides 250 mg/dL. The patient also has a fasting blood glucose of 115 mg/dL and a blood pressure of 135/85 mmHg.

The integration of these laboratory and vital sign results is MOST indicative of which condition that significantly impacts the patient's long-term cardiovascular prognosis?

  1. Familial hypercholesterolemia
  2. Metabolic syndrome (correct answer)
  3. Cushing's syndrome
  4. Hypothyroidism
Explanation: The patient meets several criteria for metabolic syndrome: high triglycerides (≥150), low HDL (<40 for men), elevated fasting glucose (≥100), and elevated blood pressure (≥130/85). This clustering of risk factors dramatically increases the risk for future cardiovascular events, beyond the risk from the MI alone. Recognizing this syndrome is crucial for comprehensive patient education on lifestyle changes, including diet and exercise, which is a core component of cardiac rehab.

Question 20

A patient in the intensive care unit is intubated and mechanically ventilated. The arterial blood gas (ABG) results are: pH 7.28, PaCO₂ 60 mmHg, PaO₂ 85 mmHg, HCO₃⁻ 25 mEq/L. The patient has coarse rhonchi auscultated over the large airways.

How should the physical therapist interpret this ABG result, and what intervention is MOST indicated?

  1. Uncompensated respiratory acidosis; postural drainage and suctioning are indicated. (correct answer)
  2. Respiratory alkalosis; breathing retraining and sedation are indicated.
  3. Metabolic acidosis; positioning to optimize renal perfusion is indicated.
  4. Compensated metabolic alkalosis; no acute physical therapy intervention is indicated.
Explanation: When you encounter arterial blood gas (ABG) interpretation questions, use a systematic approach: first assess pH to determine acidosis or alkalosis, then identify the primary cause (respiratory vs. metabolic), and finally check for compensation. This patient's pH of 7.28 is below the normal range (7.35-7.45), indicating acidosis. The elevated PaCO₂ of 60 mmHg (normal: 35-45 mmHg) points to respiratory acidosis, where inadequate ventilation leads to CO₂ retention and decreased pH. The normal HCO₃⁻ of 25 mEq/L (normal: 22-26 mEq/L) shows no metabolic compensation has occurred yet, making this uncompensated respiratory acidosis. The coarse rhonchi suggest airway secretions are likely contributing to impaired ventilation. Choice A correctly identifies uncompensated respiratory acidosis and recommends appropriate interventions. Postural drainage and suctioning directly address the suspected cause—retained secretions blocking effective ventilation. Choice B incorrectly identifies respiratory alkalosis, which would show elevated pH and low PaCO₂. Choice C misidentifies this as metabolic acidosis, which would typically show low HCO₃⁻ with possible respiratory compensation (low PaCO₂). Choice D incorrectly suggests metabolic alkalosis (which would show elevated pH and HCO₃⁻) and compensation that isn't present. For NPTE success, remember the ABG interpretation sequence: pH first (acid vs. alkaline), then match the abnormal value (PaCO₂ or HCO₃⁻) that explains the pH change, and always correlate your findings with clinical signs like the rhonchi mentioned here.