Pass the NREMT Medical Technicians EMT Questions and answers with CertsForce

The correct answers are B. Positional asphyxia and E. Sudden cardiac arrest.

This question refers to patients with severe agitation or delirium, often described in EMS as excited delirium syndrome or severe behavioral emergencies.

Why B is correct (Positional asphyxia):

Agitated patients who are restrained improperly (especially in prone positions) are at high risk of:

Restricted chest wall movement

Impaired ventilation

Hypoxia

NREMT-aligned guidance emphasizes:

“Improper restraint positioning can lead to positional asphyxia.”

This is a major cause of morbidity and death in agitated or restrained patients.

Why E is correct (Sudden cardiac arrest):

Severely agitated or delirious patients are at risk of:

Extreme catecholamine surge

Metabolic acidosis

Cardiac dysrhythmias

These can rapidly lead to sudden cardiac arrest.

NREMT materials highlight:

“Patients with severe agitation are at risk for sudden cardiac arrest.”

“Excited delirium may result in sudden death if not properly managed.”

Why the other options are incorrect:

A. Seizure activity: Not a primary or common morbidity risk directly associated with agitation.

C. Hypovolemic shock: Not typically related to agitation unless trauma or bleeding is present.

D. Hemorrhagic stroke: Not a typical complication of agitation/delirium in EMS context.

Exact Extracts:

“Improper restraint can result in positional asphyxia.”

“Excited delirium is associated with sudden cardiac arrest.”

“Agitated patients require careful monitoring due to risk of sudden death.”

The correct answer is C. Deep vein thrombosis (DVT).

This question is testing recognition of classic signs and symptoms of a deep vein thrombosis, which is a blood clot forming in a deep vein, most commonly in the lower extremities.

The patient presents with hallmark findings:

Unilateral calf pain (cramping/soreness)

Swelling (one calf larger than the other)

Redness

Warmth to the touch

These findings strongly indicate DVT.

According to NREMT-aligned EMT educational material:

“Signs of deep vein thrombosis include swelling, pain, warmth, and redness of the affected extremity.”

“DVT most commonly occurs in the legs and may present with unilateral swelling.”

Why the other options are incorrect:

A. Hyperthermia:A systemic condition involving elevated body temperature, not localized calf swelling and pain.

B. Food poisoning:Causes gastrointestinal symptoms such as nausea, vomiting, and diarrhea, not localized extremity findings.

D. Compartment syndrome:Typically presents with severe pain (often out of proportion), decreased pulses, pallor, paresthesia, and paralysis—not primarily redness and warmth. It is usually associated with trauma.

Clinical significance (important NREMT concept):

DVT is dangerous because the clot can dislodge and travel to the lungs, causing a pulmonary embolism, which is life-threatening.

NREMT guidance:

“A thrombus in a deep vein may dislodge and travel to the lungs, causing a pulmonary embolism.”

Exact Extracts:

“Signs of deep vein thrombosis include swelling, pain, warmth, and redness.”

“DVT most often affects the lower extremities.”

“A thrombus can break free and become an embolus, traveling to the lungs.”

NREMT distinguishes respiratory distress from respiratory failure. Respiratory distress includes compensatory signs such as tachypnea, accessory muscle use, and diaphoresis. Respiratory failure occurs when those compensatory mechanisms fail and the body can no longer maintain adequate oxygenation or ventilation.

Option D (Altered mental status) is the most reliable indicator of respiratory failure. According to NREMT, hypoxia and hypercapnia directly affect brain function, leading to confusion, agitation, lethargy, or unresponsiveness. This indicates that oxygen delivery to the brain is no longer adequate.

Option A is common in early respiratory distress.

Option B indicates increased work of breathing but not failure.

Option C reflects sympathetic activation, not failure.

NREMT teaches that mental status changes are late and ominous signs, requiring immediate airway and ventilatory support.

Comprehensive and Detailed Explanation (Based on NREMT standards):

In pediatric patients, NREMT guidelines require EMTs to check a pulse before initiating CPR when the patient is unresponsive and not breathing. For infants, the appropriate pulse check site is the brachial artery, assessed for no more than 10 seconds.

Option D is correct because determining whether a pulse is present guides whether rescue breathing or full CPR is required.

Option B is only appropriate if a pulse is present.

Option C is indicated only if no pulse is found or if the heart rate is below 60 with signs of poor perfusion.

Option A delays critical resuscitative care.

NREMT stresses strict adherence to pediatric resuscitation sequences to ensure appropriate and timely intervention.

The patient ' s symptoms are consistent with a stroke (CVA). Proper prehospital care focuses on maintaining airway, breathing, circulation, and protecting the affected limbs. Positioning the patient with head elevated (not supine) reduces intracranial pressure and aspiration risk.

Protecting the paralyzed side (e.g., left arm) from injury during transport is critical. EMS should still communicate with the patient — even if speech is impaired — and perform a stroke assessment using tools like Cincinnati Prehospital Stroke Scale (CPSS) or FAST.

In situations where a vehicle is tailgating an emergency unit, tapping the brakes briefly is a standard defensive driving maneuver to alert the driver behind to increase distance. It is less risky than slowing dramatically or pulling over, which could endanger crew or delay response.

Speeding up could reduce your reaction window or increase accident risk. EMS operators must follow safe driving practices per NFPA 1002 and DOT Emergency Vehicle Operation Guidelines.

This cluster of findings points most strongly to pulmonary contusion , which is essentially a bruised lung after blunt chest trauma . When the lung tissue is injured, bleeding and swelling inside the lung interfere with gas exchange, so the patient can develop dyspnea , hypoxia , rales/crackles , and even hemoptysis . Authoritative trauma references specifically describe pulmonary contusion after blunt chest trauma with hypoxemia as a key sign, and note that patients may present with dyspnea/cough , while severe cases can have rales and bloody sputum or hemoptysis . ( NCBI )

The correct answer is A. Fluid overload.

Missed dialysis → inability to remove excess fluid

Shortness of breath + crackles → fluid in the lungs (pulmonary edema)

Hypertension (188/90)

Tachycardia (120)

Low-normal SpO₂ (92%)

These findings strongly indicate fluid overload leading to pulmonary edema.

Patients who miss dialysis retain excess fluid

Fluid accumulates in the lungs → crackles and respiratory distress

Hypertension is common due to increased circulating volume

B. Bronchiolitis → Typically seen in infants/children, not adults

C. Pneumonia → May cause crackles, but does not explain missed dialysis + fluid retention + hypertension pattern

D. Ascites → Fluid in the abdomen, not primarily causing lung crackles or acute respiratory distress

“Patients with renal failure who miss dialysis may develop fluid overload.”

“Pulmonary edema presents with crackles and respiratory distress.”

“Hypertension is commonly associated with fluid overload states.”

In pediatric patients, NREMT emphasizes that hypotension is a late and ominous sign of shock. Children compensate well and may maintain blood pressure until shock is severe.

Option C (Tachypnea) is the earliest and most reliable indicator of hypovolemic shock in children. Increased respiratory rate reflects metabolic acidosis and compensatory mechanisms for poor perfusion.

Option A may be present but is less specific.

Option B is a very late finding.

Option D indicates decompensated shock and impending cardiovascular collapse.

NREMT stresses early recognition of shock through subtle signs such as tachypnea and tachycardia.

The correct answer is B because in EMS, the patient care report is the official record of the assessment, treatment, and transport decision-making provided to the patient. Authoritative EMS documentation guidance explains that the PCR is essential to communicate patient assessment and treatment and to support ongoing care; if it is incomplete, it suggests the care itself may not have been thorough or cannot be shown to have been thorough. In EMS practice, incomplete documentation is commonly treated as incomplete patient care documentation, which reflects poorly on the thoroughness of care. ( NCBI )