NREMT Updated EMT Exam Questions and Answers by jadon

The correct answer is C. Providing high-flow oxygen via non-rebreather mask.

This patient is showing clear signs of moderate to severe respiratory distress, including:

Tachypnea (respiratory rate of 28)

Accessory muscle use

Cool, clammy skin (indicating increased work of breathing and possible hypoxia)

According to NREMT airway and ventilation guidelines, patients in respiratory distress who are still breathing adequately should receive high-concentration oxygen, typically via a non-rebreather mask at 10–15 L/min.

Why C is correct:

NREMT educational standards emphasize that in patients with adequate breathing but signs of distress, the appropriate intervention is:

“Administer high-flow oxygen to patients with signs of hypoxia or respiratory distress.”

A non-rebreather mask delivers the highest oxygen concentration without assisting ventilations, making it ideal for this scenario.

Why the other options are incorrect:

A. Nasal cannula: Provides low-flow oxygen and is insufficient for moderate to severe respiratory distress.

B. Oropharyngeal airway: Indicated only for unresponsive patients without a gag reflex, which is not the case here.

D. CPAP: Typically indicated for pulmonary edema or COPD exacerbations with signs of respiratory failure; asthma is a relative contraindication in many EMT-level protocols and is not first-line in this presentation.

Exact Extracts:

“Administer oxygen via nonrebreather mask to patients with adequate breathing and signs of respiratory distress.”

“Patients with increased work of breathing and tachypnea require high-concentration oxygen.”

“Oropharyngeal airways are indicated for unresponsive patients without a gag reflex.”

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 B. Crackles and E. Dependent edema.

Why B is correct (Crackles):

Crackles (rales) are a hallmark sign of pulmonary edema, which occurs in left-sided heart failure.

Fluid accumulates in the alveoli

Causes crackling sounds on auscultation

Indicates impaired cardiac pumping ability

NREMT-aligned guidance states:

“Pulmonary edema presents with crackles due to fluid in the lungs.”

Why E is correct (Dependent edema):

Dependent edema is a classic sign of right-sided heart failure.

Fluid backs up into systemic circulation

Leads to swelling in:

Legs

Ankles

Lower extremities

NREMT-aligned guidance:

“Right-sided heart failure results in peripheral or dependent edema.”

Why the other options are incorrect:

A. Ascites: Can occur in severe right-sided failure but is less common and not a primary EMT-level finding.

C. Wheezing: More commonly associated with asthma or bronchospasm (though CHF can cause “cardiac wheezing,” it is not the best answer here).

D. Chest pain: Suggests cardiac ischemia, not specifically CHF.

Exact Extracts:

“Left-sided heart failure leads to pulmonary edema and crackles.”

“Right-sided heart failure causes dependent edema.”

“Fluid accumulation results from the heart’s inability to pump effectively.”

Laundry detergent ingestion — especially in the case of liquid detergent pods — is associated with caustic airway and gastrointestinal injuries. The presence of crackles and drowsiness are signs of aspiration and possible respiratory failure. Vomiting increases the risk of aspiration pneumonitis, and esophageal perforation is a life-threatening complication from corrosive ingestion.

While seizure and hypoglycemia are possible complications of toxic ingestion, they are not as immediately linked to the detergent profile as airway injury and aspiration risk.