Nremt Aemt Level Quiz: Head Spine And Neurologic Trauma

What this quiz covers

This quiz focuses on Head Spine And Neurologic Trauma, giving you a quick way to practice the rules, question types, and explanations that matter most for Nremt Aemt Level.

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.

Question 1

1. Complete a detailed neurological exam to assess for underlying skull fracture.
2. Establish IV access and begin a fluid bolus to treat for shock.
3. Apply firm, direct pressure to the scalp wound to control the hemorrhage. (correct answer)
4. Irrigate the wound with sterile saline before applying a dressing.

Explanation: Scalp lacerations can bleed profusely and lead to life-threatening hemorrhagic shock. While all other actions are important parts of management, the immediate priority is to control the life-threatening hemorrhage. Firm, direct pressure is the most effective initial step. Delaying hemorrhage control to perform other procedures could lead to significant blood loss and decompensation.

Question 2

1. GCS 8 (correct answer)
2. GCS 9
3. GCS 7
4. GCS 6

Explanation: The GCS score is calculated by summing the scores from three categories: Eye Opening, Verbal Response, and Motor Response. In this scenario: Eyes open to pain (sternal rub) = 2. Verbal response is incomprehensible sounds (moaning) = 2. Motor response is withdrawal from a painful stimulus = 4. The total GCS score is 2 + 2 + 4 = 8.

Question 3

1. The head-tilt, chin-lift maneuver, as it provides the most effective airway opening.
2. The jaw-thrust maneuver, performed while another provider maintains manual spinal stabilization. (correct answer)
3. Slight extension of the neck until the airway is patent, avoiding excessive movement.
4. Insertion of an OPA without any manual airway maneuver to avoid spinal movement.

Explanation: In a patient with a suspected cervical spine injury, the airway must be opened with a technique that minimizes neck movement. The jaw-thrust maneuver is the recommended technique, as it can be performed while maintaining manual in-line stabilization of the head and neck. The head-tilt, chin-lift maneuver is contraindicated as it involves hyperextension of the neck. An OPA may be needed, but a manual maneuver is still required to lift the tongue off the pharynx.

Question 4

1. 0.9% Normal Saline (correct answer)
2. 5% Dextrose in Water (D5W)
3. Lactated Ringer's
4. 0.45% Normal Saline

Explanation: For patients with traumatic brain injury, the preferred IV fluid is an isotonic crystalloid. Both Normal Saline (NS) and Lactated Ringer's (LR) are isotonic. However, LR is slightly hypotonic compared to plasma and can increase cerebral edema. Therefore, 0.9% NS is the most commonly recommended fluid. Hypotonic solutions like D5W and 0.45% NS are strictly contraindicated as they would significantly worsen cerebral edema by shifting free water into the brain cells.

Question 5

1. Repeatedly asking the same question about what happened. (correct answer)
2. A heart rate of 120 beats per minute during assessment.
3. Vomiting once immediately after the incident.
4. Crying and refusing to let you examine her head.

Explanation: In pediatric head trauma, signs can be subtle. While crying, a single episode of vomiting, and an elevated heart rate (which can be due to pain or fear) are common, repetitive questioning is a sign of amnesia and altered mental status. This suggests a more significant concussion or underlying injury than the other findings and warrants a higher index of suspicion and urgent evaluation.

Question 6

1. 25 - 30 mmHg
2. 35 - 40 mmHg (correct answer)
3. 45 - 50 mmHg
4. 55 - 60 mmHg

Explanation: In traumatic brain injury, the goal is to maintain normal cerebral blood flow. Both hypocapnia (low CO2) and hypercapnia (high CO2) are detrimental. Hypocapnia causes vasoconstriction, reducing blood flow, while hypercapnia causes vasodilation, increasing intracranial pressure. The target range for EtCO2 is normocapnia, which is 35-45 mmHg. For TBI management, a slightly tighter range of 35-40 mmHg is often preferred to avoid any risk of vasoconstriction. The other ranges represent dangerous hyperventilation or hypoventilation.

Question 7

1. Administer titrated fluid boluses with the goal of achieving a systolic blood pressure of at least 110 mmHg. (correct answer)
2. Withhold IV fluids unless the heart rate increases above 100 bpm, which would indicate hypovolemic shock.
3. Administer a single 20 mL/kg fluid bolus and then maintain a keep-vein-open rate during transport.
4. Initiate a fluid bolus to maintain a palpable radial pulse and transport rapidly to a trauma center.

Explanation: The patient's presentation of hypotension, relative bradycardia, and warm, dry skin below the level of injury is classic for neurogenic shock due to loss of sympathetic tone. Unlike hemorrhagic shock where permissive hypotension is practiced, the goal in neurogenic shock is to maintain adequate spinal cord perfusion. Fluid boluses should be titrated to a higher systolic blood pressure target, typically 110-120 mmHg, to counteract the vasodilation.

Question 8

1. Anterior cord syndrome
2. Brown-Séquard syndrome
3. Central cord syndrome (correct answer)
4. Complete spinal cord transection

Explanation: Central cord syndrome is characterized by greater weakness in the upper extremities compared to the lower extremities, with variable sensory loss. It is most common in older patients with degenerative changes in the cervical spine who experience a hyperextension injury, such as a fall. The other syndromes have different patterns of motor and sensory loss.

Question 9

1. Withhold fluids completely to avoid increasing intracranial pressure.
2. Administer fluid boluses until the systolic blood pressure is greater than 120 mmHg.
3. Titrate fluid administration to maintain a systolic blood pressure between 90-100 mmHg. (correct answer)
4. Administer a 20 mL/kg bolus regardless of blood pressure response.

Explanation: This patient has both a severe head injury and suspected intra-abdominal hemorrhage (hypovolemic shock). Management requires balancing cerebral perfusion with the risk of worsening hemorrhage. Hypotension (SBP < 90 mmHg) must be avoided to prevent secondary brain injury. However, aggressive fluid resuscitation to a high BP can dislodge clots and worsen bleeding. Therefore, titrating fluids to a target SBP of 90-100 mmHg represents the best balance until hemorrhage can be surgically controlled.

Question 10

1. Subdural hematoma
2. Epidural hematoma (correct answer)
3. Diffuse axonal injury
4. Severe concussion

Explanation: The classic presentation of a brief loss of consciousness followed by a 'lucid interval' and then rapid neurologic deterioration is highly suggestive of an epidural hematoma. This is typically caused by an arterial bleed (e.g., from the middle meningeal artery) that accumulates rapidly, causing a sudden increase in intracranial pressure. The unilateral dilated pupil is another sign of uncal herniation from the expanding mass.

Question 11

1. Insertion of a nasopharyngeal airway. (correct answer)
2. Performance of a jaw-thrust maneuver.
3. Insertion of an oropharyngeal airway.
4. Assisting ventilations with a BVM.

Explanation: The presence of bruising behind the ears (Battle's sign) and clear fluid from the nose (potential cerebrospinal fluid rhinorrhea) are highly indicative of a basilar skull fracture. In this situation, insertion of a nasopharyngeal airway is contraindicated due to the risk of it passing through the fractured cribriform plate and into the cranial vault, causing further brain injury.

Question 12

1. Decerebrate posturing (M2), indicating injury to the brainstem.
2. Decorticate posturing (M3), indicating injury above the brainstem. (correct answer)
3. Withdrawal from pain (M4), indicating a functioning spinal reflex arc.
4. Localized pain (M5), indicating a purposeful response to the stimulus.

Explanation: The patient's response—flexion of the arms ('to the core') and extension of the legs—is decorticate posturing. This corresponds to a motor score of 3 on the GCS. It indicates severe damage to nerve pathways in the midbrain, above the level of the red nucleus. Decerebrate posturing (M2) involves extension of both arms and legs and indicates a more severe injury at or below the level of the brainstem.

Question 13

1. Cover the exposed brain tissue with a dry sterile dressing to prevent contamination.
2. Initiate IV access and administer a fluid bolus to raise the patient's blood pressure.
3. Gently pack the wound with sterile gauze to control any active bleeding from the brain.
4. Assist ventilations with a BVM and high-flow oxygen to correct the bradypnea. (correct answer)

Explanation: The patient's respiratory rate of 6 per minute is inadequate and will lead to severe hypoxia and hypercarbia, causing devastating secondary brain injury. The immediate priority is to support the patient's airway and breathing by assisting ventilations. While the head wound is dramatic, it should be covered loosely with a moist sterile dressing, not a dry one, and never packed. IV access is important but secondary to correcting the life-threatening respiratory failure.

Question 14

1. Establish a second large-bore IV and administer a 500 mL fluid bolus to address potential hypovolemia.
2. Initiate positive pressure ventilation at a rate of 20-22 breaths per minute to lower intracranial pressure.
3. Assist ventilations with a BVM at 10-12 breaths/min to maintain an SpO2 of ≥94% and avoid hypoxia. (correct answer)
4. Apply a cervical collar and rapidly transport, deferring advanced airway management until arrival at the hospital.

Explanation: The patient is exhibiting Cushing's triad (hypertension, bradycardia, irregular respirations), which indicates significantly increased intracranial pressure and impending brain herniation. The highest priority is preventing secondary brain injury from hypoxia and hypercarbia. Assisting ventilations at a normal rate (10-12 breaths/min) to maintain oxygenation (SpO2 ≥94%) is the most critical intervention. Prophylactic hyperventilation is no longer recommended.

Question 15

1. Allow the player to return to the game after a 15-minute rest period if his headache improves.
2. Administer a dose of intranasal naloxone due to his altered mental status.
3. Recommend immediate removal from play and evaluation by a qualified healthcare professional. (correct answer)
4. Apply a cold pack to his head and have the coach monitor him on the sideline for the rest of the game.

Explanation: Any athlete suspected of having a concussion should be immediately removed from play and not allowed to return until cleared by a qualified healthcare professional. The patient's confusion ('unsure of the score') and headache are clear signs of a potential concussion. The AEMT's role is to recognize these signs, initiate care (like SMR if indicated), and strongly advocate for the patient's safety by insisting on removal from play and further medical evaluation.

Question 16

1. The mechanism of injury involves a direct assault, which is considered high-risk.
2. The patient's admission to consuming alcohol may impair his ability to be reliably assessed. (correct answer)
3. The patient is not complaining of neck pain, which is a common finding in distracting injuries.
4. The absence of focal neurological deficits allows for safe transport without immobilization.

Explanation: While the patient is alert and has no complaints, the presence of intoxicating substances like alcohol can alter a patient's perception of pain and overall reliability. Most SMR protocols (like NEXUS) list intoxication as a key reason to maintain spinal precautions, as the patient cannot be reliably cleared in the field. The other factors (mechanism, lack of pain, lack of deficits) would argue against SMR if not for the intoxication.