Pass the NREMT Medical Technicians EMT Questions and answers with CertsForce

If a patient is responsive, they must have adequate cerebral perfusion, meaning a pulse is present—even if it is difficult to palpate. NREMT guidelines emphasize that EMTs should not assume cardiac arrest based solely on an inability to feel a pulse.

Option C is correct because the EMT should continue the primary assessment, reassessing airway, breathing, and circulation using additional indicators such as skin condition, mental status, and breathing quality.

Option A is incorrect because CPR is only initiated in unresponsive, pulseless patients.

Option B is incorrect because AED use is indicated only for unresponsive, pulseless patients.

Option D may be appropriate later for shock but does not address the assessment discrepancy.

NREMT teaches that patient responsiveness is a reliable indicator of circulation and that EMTs must avoid unnecessary resuscitative interventions.

Comprehensive and Detailed Explanation (Based on NREMT standards):

Nerve agents are highly toxic organophosphate chemicals that inhibit acetylcholinesterase, leading to excess acetylcholine accumulation and life-threatening cholinergic effects. NREMT hazardous materials education highlights recognition of these agents due to their rapid lethality.

Option C (Tabun) and D (Sarin) are correct. Both are internationally recognized nerve agents historically used in chemical warfare and terrorist attacks.

Option A (Naloxone) is an opioid antagonist, not a nerve agent.

Option B (Metoprolol) is a beta-blocker medication.

Option E (Atropine) is not a nerve agent; it is an antidote used to treat nerve agent poisoning.

NREMT emphasizes scene safety, recognition of toxidromes, and early antidote administration for nerve agent exposure.

Comprehensive and Detailed Explanation From Exact Extract:

Negligence occurs when an EMT:

Has a duty to act

Breaches that duty (e.g., by withholding basic care like warmth)

Causes harm or risk of harm

Establishes causation

The EMT’s failure to treat the patient with respect and dignity — even if the patient improved — still constitutes negligence, especially if tied to a discriminatory or dismissive attitude.

The EMS system is activated when an emergency is recognized by a bystander, patient, or first responder. NREMT describes EMS activation as a sequence that begins with recognizing an emergency and then accessing the system.

Option D (Recognition) is correct because without recognition, no call for help occurs.

Option C (Notification) follows recognition.

Option B (Dispatch) occurs after notification.

Option A (Response) is the physical movement of EMS resources after dispatch.

NREMT emphasizes public education on recognizing emergencies as a key component of effective EMS systems.

Comprehensive and Detailed Explanation From Exact Extract:

The tripod position — sitting upright, leaning forward, supporting the upper body with arms on knees — is a classic sign of respiratory distress. This position:

Maximizes diaphragmatic movement

Engages accessory muscles of respiration

Improves air exchange in patients with obstructive airway diseases (e.g., COPD, asthma)

It is rarely used by patients with abdominal pain or seizures and is not associated with cardiac arrest (where unconsciousness is expected).

NREMT guidelines specify that adult ventilations with a BVM should be delivered over approximately 1 second, just enough to see visible chest rise. Forceful, rapid ventilations increase the risk of gastric inflation, aspiration, barotrauma, and hypotension.

Option B is correct because slowing the rate and reducing force improves ventilation effectiveness and patient safety.

Option A may be important, but the primary error described is ventilation speed.

Option C is inappropriate for an apneic patient.

Option D is only indicated if the patient is pulseless.

NREMT emphasizes controlled, gentle ventilations to minimize complications.

The diaphragm is innervated by the phrenic nerve, which originates from spinal nerve roots C3–C5. NREMT teaching highlights the phrase: “C3, 4, and 5 keep the diaphragm alive.”

Option A (C4) is correct because an injury at or above this level can paralyze the diaphragm, resulting in apnea and immediate respiratory failure.

Option B (T1) and C (T3) affect intercostal muscles but not the diaphragm.

Option D (L4) affects lower extremity function only.

NREMT emphasizes that high cervical spine injuries are immediately life-threatening due to loss of ventilatory control.

Comprehensive and Detailed Explanation From Exact Extract:

The patient is in hypoperfusion (shock) from blood loss. In shock states, tissues are deprived of oxygen, leading to anaerobic metabolism, which produces lactic acid as a byproduct. This causes metabolic acidosis, which is a critical sign of systemic oxygen debt.

Carbon dioxide rises with respiratory failure, but lactic acid is a more specific indicator of cellular hypoxia.

Comprehensive and Detailed Explanation From Exact Extract:

Dehydration signs in infants include:

Poor skin turgor (elasticity)

Sunken fontanelles (indicative of fluid loss)

Delayed capillary refill (>2 seconds)

Flushed skin is more common in fever or heat illness, not dehydration. Hypotension, not hypertension, is associated with dehydration in late stages.

Comprehensive and Detailed Explanation From Exact Extract:

Agonal respirations are not effective breathing and can mimic gasping or snorting. They often occur in cardiac arrest. However, before initiating chest compressions, the EMT must confirm pulselessness by checking a carotid pulse for no more than 10 seconds (AHA 2020 BLS Guidelines).

Only after pulse confirmation (or absence) should compressions begin. Suctioning or ventilating is premature unless a pulse is found.