ENA Emergency Nursing Orientation 3 Study Guide 2025: Exam Prep & Modules

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ENA Emergency Nursing Orientation 3.0 All Tests

Questions & Answers Latest 2025

Which type of shock causes a temporary loss of motor, sensory,

and reflex functions below the level of a lesion?

.....ANSWER.....Spinal shock




According to the rule of nines, burns of the anterior trunk and

both anterior arms account for which percentage of body surface

area? .....ANSWER.....27 percent




Which effect does parasympathetic stimulation have on the

heart?

A. It increases peripheral vascular resistance.

B. It enhances atrioventricular node function.

C. It shortens His-Purkinje and ventricular muscle refractoriness.

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D. It slows sinoatrial node discharge.

.....ANSWER.....D.




Parasympathetic stimulation slows sinoatrial node discharge.

Sympathetic stimulation enhances atrioventricular node function,

shortens His-Purkinje and ventricular muscle refractoriness, and

increases peripheral vascular resistance.




Hypertension is a finding in which type of poisoning?

A. Opioid

B. Antidepressant

C. Anticholinergic

D. Organophosphate

.....ANSWER.....C

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For a patient with chronic immune thrombocytopenia, which

intervention is the initial treatment?




A. Infuse intravenous immunoglobulin.

B. Administer prednisone (Deltasone).

C. Prepare the patient for a splenectomy.

D. Administer cyclophosphamide (Cytoxan).

.....ANSWER.....B. Administer prednisone (Deltasone).




For which disorder is phenazopyridine (Pyridium) most commonly

administered? .....ANSWER.....D. Urethritis




Rhabdomyolysis is a complication of which type of toxicity?

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A. Central nervous system stimulant

B. Opiate

C. Tricyclic antidepressant

D. Calcium channel blocker .....ANSWER.....A. Central nervous

system stimulant




Which intervention is used to treat a patient with ventricular

fibrillation who has an implantable cardiac defibrillator?

.....ANSWER.....Apply hands-free adhesive patches in the

anterior-posterior position and defibrillate.




For which disorder is phenazopyridine (Pyridium) most commonly

administered? .....ANSWER.....D. Urethritis