Paramedics Exam Paramedic Exam EMT 3

Question 1

Which nerve is responsible for diaphragmatic innervation, and at what spinal level does it originate?

Accepted Answer

Phrenic nerve, C3-C5

Answer

The phrenic nerve originates from C3, C4, and C5 and is the primary motor nerve driving diaphragm contraction for breathing.

Question 2

A patient in ventricular fibrillation receives a defibrillation shock. Immediately after, you observe a flat line on the monitor. What should you do FIRST?

Accepted Answer

Resume CPR for 2 minutes

Answer

Post-shock asystole or PEA should be treated by immediately resuming high-quality CPR for 2 minutes before re-analyzing the rhythm.

Question 3

Which of the following is the correct dose of atropine for symptomatic bradycardia in an adult?

Accepted Answer

0.5 mg IV

Answer

The initial dose of atropine for symptomatic bradycardia is 0.5 mg IV, repeated every 3–5 minutes to a maximum of 3 mg.

Question 4

A construction worker fell 30 feet. He is conscious with midline cervical spine tenderness. Despite manual stabilization, he is combative and pulling at his cervical collar. What is the most appropriate action?

Accepted Answer

Sedate the patient and perform rapid sequence intubation

Answer

RSI provides definitive airway control while maintaining spinal precautions in a combative trauma patient with suspected cervical injury.

Question 5

A 55-year-old male presents with crushing chest pain radiating to the left jaw, diaphoresis, and nausea. His 12-lead ECG shows 2 mm ST elevation in leads II, III, and aVF. Which coronary artery is most likely occluded?

Accepted Answer

Right coronary artery

Answer

ST elevation in the inferior leads (II, III, aVF) indicates inferior STEMI, most commonly caused by right coronary artery occlusion.

Paramedics Exam Practice Test

Paramedics Exam Practice Test

Paramedics Exam Paramedic Exam EMT 3