FREE CFRN MCQ Questions and Answers

Question 1

This person assesses Pulsus paradoxus:

Accepted Answer

Systolic blood pressure readings

Answer

Radial pulse (palpitation)

Answer

Heart rate (auscultation)

Answer

Diastolic blood pressure readings

Question 2

A patient injured in a vehicle accident is being evacuated through hilly terrain at a height of more than 5000 feet. Due to a broken pump, the patient gets intravenous (IV) fluids by gravity. What impact will the IV infusion have when the altitude is raised to more than 5000 feet?

Accepted Answer

The IV flow will increase

Answer

The IV flow will stop

Answer

There will be no effect

Answer

The IV flow will decrease

Question 3

To commit suicide, a 17-year-old girl ingested an excessive amount of acetaminophen (thirty 500-mg pills). She informed her parents, who made an emergency call eight hours later. Which of the subsequent initial emergency treatments is appropriate?

Accepted Answer

N-acetylcysteine

Answer

Gastrointestinal decontamination and instillation of activated charcoal

Answer

Fomepizole

Answer

Sodium bicarbonate

Question 4

Which of the following readings from an adult's arterial blood gas is consistent with metabolic acidosis?

Accepted Answer

HCO3-< 22 mEq/L and pH < 7.35

Answer

HCO3-> 26 mEq/L and pH > 7.45

Answer

PaCO2 > 55 mmHg and PaO2 < 60 mmHg

Answer

PaCO2 35-45 mmHg and PaO2 ≥ 80 mmHg

Question 5

As he waits to be airlifted from a tiny rural hospital to a university hospital 200 miles from the scene of the accident for possible limb reattachment, a homeless guy who had recently suffered a horrific below-knee amputation turns violent and disoriented. Which of the following is the most appropriate initial action?

Accepted Answer

Provide physical restraints or chemical restraints

Answer

Arrange ground transport for the patient

Answer

Leave the patient at the rural hospital for treatment

Answer

Delay the flight until the patient calms

Question 6

A tornado has injured several people and left a small village with major damage. The nearest medical facility is 150 miles distant. Although there is only one aircraft available for transfer, ambulances are expected to show there in 15 minutes. Which of the following patients needs to be flown after triage?

Accepted Answer

A 25-year-old woman at 26 weeks’ gestation in active labor

Answer

A 45-year-old man with penetrating trauma in his left leg from shards of wood

Answer

A 50-year-old woman with first- and second-degree burns on arms and hands (12% of body surface area)

Answer

A 12-year-old boy with a fractured elbow

Question 7

Which of the following situations completely rules out nasotracheal intubation?

Accepted Answer

Apnea

Answer

Cervical spine injury

Answer

Facial trauma

Answer

Skull fracture