Pass the NREMT Medical Technicians EMT Questions and answers with ExamsMirror

Organophosphates are commonly found in pesticides and insecticides, which are often stored in tool sheds. NREMT training emphasizes recognition of cholinergic toxidrome, frequently summarized by the mnemonic SLUDGE (Salivation, Lacrimation, Urination, Defecation, Gastrointestinal distress, Emesis).

Option C is correct because the patient’s symptoms—drooling, tearing, abdominal pain, and runny nose—are hallmark signs of organophosphate poisoning.

Option A (naphthalene) primarily causes hemolysis and neurologic symptoms.

Option B (hydrogen sulfide) causes respiratory distress and altered mental status, not secretions.

Option D causes chemical pneumonitis, not cholinergic symptoms.

NREMT stresses early identification of toxic exposures, scene safety, decontamination awareness, and rapid transport for definitive care.

Comprehensive and Detailed Explanation From Exact Extract:

Given fall with head trauma and absent respirations, the most concerning cause is spinal injury, particularly a cervical spine fracture. A high cervical injury (C1–C4) can paralyze the diaphragm, leading to apnea despite a beating heart.

Brain herniation can also depress respirations but often presents with unequal pupils, posturing, and Cushing’s triad (not described here). Commotio cordis is sudden cardiac arrest from blunt chest trauma (not head). Open pneumothorax affects chest mechanics, not directly linked here.

Comprehensive and Detailed Explanation From Exact Extract:

If a choking patient becomes unresponsive, EMTs should:

Check for a pulse

Begin chest compressions if no pulse is foundChest compressions can help dislodge the object. After compressions, the airway should be opened and inspected. Back blows are not appropriate for unconscious patients.

Ventilation is attempted after clearing the airway or if no object is seen. Do not withhold compressions waiting for object removal.

Pursed-lip breathing is a classic compensatory mechanism seen in patients with emphysema, a form of chronic obstructive pulmonary disease (COPD). According to NREMT education, emphysema is characterized by destruction of the alveolar walls, which leads to loss of lung elasticity. This loss prevents the small airways from remaining open during exhalation.

Option A is correct because pursed-lip breathing creates positive pressure in the airways during exhalation. This pressure helps keep collapsed airways open longer, allowing trapped air to escape and improving ventilation. It also reduces the work of breathing and helps alleviate dyspnea.

Option B is incorrect because decreased hemoglobin affects oxygen-carrying capacity, not airway mechanics or breathing patterns.

Option C is more commonly associated with chronic bronchitis, not emphysema.

Option D is incorrect because diaphragmatic dysfunction is not the primary cause of pursed-lip breathing.

NREMT emphasizes recognizing compensatory breathing patterns in chronic lung disease to guide supportive care, including oxygen administration and positioning.

Comprehensive and Detailed Explanation From Exact Extract:

Albuterol, a common beta-2 adrenergic agonist used in inhalers, stimulates bronchial smooth muscle relaxation. However, stimulation of beta receptors can also produce systemic effects such as:

Tachycardia (due to beta-1 cross-reactivity)

Nervousness (from central stimulation)

Coughing (a local airway response)

Confusion and drowsiness are not typical side effects of beta-agonists. Hypotension is rare unless severe overdose occurs.

The correct answers are C. Bradycardia and D. Altered mental status.

This question focuses on distinguishing respiratory distress from respiratory failure in pediatric patients.

Respiratory distress = compensating (early signs)

Respiratory failure = decompensating (late, life-threatening signs)

Why C is correct (Bradycardia):

In children, bradycardia is a late and ominous sign of hypoxia.

It indicates the patient is decompensating and nearing respiratory arrest.

Why D is correct (Altered mental status):

Indicates inadequate oxygenation and/or ventilation to the brain.

A hallmark of respiratory failure, not just distress.

Why the other options are incorrect:

A. Coughing → Nonspecific, not indicative of failure

B. Tachypnea → Early compensatory sign of respiratory distress

E. Increased work of breathing → Also an early sign of distress, not failure

Exact Extracts:

“Respiratory failure is indicated by altered mental status and signs of poor oxygenation.”

“Bradycardia in pediatric patients is a late sign of hypoxia.”

“Increased work of breathing and tachypnea are signs of respiratory distress.”

The correct answer is A. Remove the airway and ventilate him.

In pediatric patients, improper placement or incorrect sizing of an oropharyngeal airway (OPA) can cause:

Airway obstruction instead of opening

Worsening hypoxia

Leading to cyanosis and bradycardia

The patient’s cyanosis (low oxygen) and bradycardia (late hypoxia sign) indicate that the airway intervention has failed or worsened the situation.

Immediate action is to:

Remove the OPA

Provide effective ventilations with BVM

B. Continue ventilation with the airway in place → Incorrect because the airway is likely malpositioned or obstructing airflow

C. Increase ventilation rate to 40–60 → Excessive and inappropriate; does not correct obstruction

D. Start CPR if HR < 100 → In pediatrics, CPR begins if HR < 60 with poor perfusion, not < 100

“If an airway adjunct worsens ventilation, it should be removed immediately.”

“Bradycardia in infants is a sign of hypoxia.”

“Ensure adequate ventilation before initiating compressions.”

The first step in hemorrhage control for external bleeding is always direct pressure using gloved hands or dressing. Only if this fails or the bleeding is severe and life-threatening (especially from extremities) should a tourniquet be applied.

Assessing the airway is critical in overall trauma care but not the first priority in isolated extremity hemorrhage. Severity assessment is secondary to bleeding control.

The cerebrum is the largest and most developed part of the human brain and is responsible for higher cognitive functions. According to NREMT anatomy and physiology education, the cerebrum controls thinking, reasoning, memory, judgment, voluntary movement, and sensory interpretation.

Option B is correct because conscious thought, problem-solving, and decision-making all originate in the cerebrum.

Option A (Pons) helps regulate breathing and sleep cycles.

Option C (Brain stem) controls vital functions such as heart rate, breathing, and blood pressure.

Option D (Cerebellum) coordinates balance, posture, and fine motor movement.

Understanding brain function helps EMTs correlate neurological findings with possible injuries or medical conditions.

CPAP works by delivering continuous positive pressure to keep alveoli open and improve oxygenation. However, complications include:

Hypotension: Due to reduced venous return and cardiac preload

Feeling of suffocation: Common psychological reaction to a tight-fitting mask and forced airflow

It is used to treat, not cause, pulmonary edema. It does not induce bronchospasm or myocardial infarction.