ENA EMERGENCY NURSING ORIENTATION 3.0 LATEST
EEDITION
2026-2027 EXAM 300+ QUESTIONS AND ANSWERS |
VERIFIED ANSWERS A-GRADE
1. 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.
D. It slows sinoatrial node discharge. - ANSWER- D.
RATIONALE: Parasympathetic stimulation slows sinoatrial node discharge.
Sympathetic stimulation enhances atrioventricular node function, shortens
HisPurkinje and ventricular muscle refractoriness, and increases peripheral
vascular resistance.
2. Hypertension is a finding in which type of poisoning?
A. Opioid
B. Antidepressant
C. Anticholinergic
D. Organophosphate - ANSWER- C
3. 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).
1
,4. For which disorder is phenazopyridine (Pyridium) most commonly
administered? -
ANSWER- D. Urethritis
5. Rhabdomyolysis is a complication of which type of toxicity?
A. Central nervous system stimulant
B. Opiate
C. Tricyclic antidepressant
D. Calcium channel blocker - ANSWER- A. Central nervous system stimulant
6. 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.
7. For which disorder is phenazopyridine (Pyridium) most commonly
administered? -
ANSWER- D. Urethritis
8. Which term defines pain caused by the stretching of a hollow organ and
is
described as cramping or a sensation of gas? - ANSWER- Visceral pain
9. When a patient is in the compensatory stage of shock, the body
preferentially
maintains blood flow to which organs? - ANSWER- heart and brain
10. Which laboratory test result should the nurse expect in a patient with
alcoholic
ketoacidosis? - ANSWER- Below normal to slightly elevated serum glucose level
11.Which finding is characteristic of preeclampsia? - ANSWER- Proteinuria
12.Sciatic nerve damage is associated with dislocation of which joint?
2
,A. Patellar
B. Knee
C. Hip
D. Ankle - ANSWER- C. Hip
13.Which intervention is indicated for a patient with circumferential full-thickness
burns of the chest, inadequate chest expansion, and restlessness? - ANSWER-
Escharotomy
14. Calcium channel blockers are indicated to treat which
dysrhythmia?
A. Atrial fibrillation
B. Accelerated junctional tachycardia
C. Second-degree atrioventricular block, type II
D. Polymorphic ventricular tachycardia - ANSWER- A.
RATIONALE: Treatment of atrial fibrillation aims to control the rapid ventricular
rate with medications, such as calcium channel blockers or beta-blockers. Calcium
channel blockers are not used to treat the other dysrhythmias listed. Accelerated
junctional tachycardia is a transient rhythm that only requires treatment of the
underlying disorder. Patients with second-degree atrioventricular block, type II,
require careful monitoring and may need transcutaneous pacing. Treatment for
polymorphic ventricular tachycardia is magnesium sulfate and defibrillation if the
patient's condition is unstable.
15. Activated charcoal can absorb which substance?
A. Cyanide
B. Kerosene
C. Lead
D. Potassium - ANSWER- B
16. Which herb can decrease the clotting time?
A. Evening primrose
B. Cinnamon
C. Garlic
3
, D. Skull cap - ANSWER- B. Cinnamon
17. Which medication causes urine retention? - ANSWER- D.
Diphenhydramine
(Benadryl)
18. The ingestion of the foxglove plant can cause which finding?
A. Hypertension
B. Bradycardia
C. Agitation
D. Lacrimation - ANSWER- B. Bradycardia
19. Which medication causes urine retention? - ANSWER- D.
Diphenhydramine
(Benadryl)
20. For a patient with a gunshot wound, which intervention is appropriate?
A. Perform a neurovascular assessment of each limb.
B. Estimate the amount of injury based on the wounds appearance.
C. Remove projectiles with Kelly clamps and place them in a sterile container.
D. Label the entrance and exits wounds. - ANSWER- A. Perform a neurovascular
assessment of each limb.
21. Which disorder is associated with fatty, foul-smelling stool? -
ANSWER-
Pancreatitis
22. Emergency needle thoracentesis is a treatment for which type of
shock
-
ANSWER- obstructive shock
4
EEDITION
2026-2027 EXAM 300+ QUESTIONS AND ANSWERS |
VERIFIED ANSWERS A-GRADE
1. 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.
D. It slows sinoatrial node discharge. - ANSWER- D.
RATIONALE: Parasympathetic stimulation slows sinoatrial node discharge.
Sympathetic stimulation enhances atrioventricular node function, shortens
HisPurkinje and ventricular muscle refractoriness, and increases peripheral
vascular resistance.
2. Hypertension is a finding in which type of poisoning?
A. Opioid
B. Antidepressant
C. Anticholinergic
D. Organophosphate - ANSWER- C
3. 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).
1
,4. For which disorder is phenazopyridine (Pyridium) most commonly
administered? -
ANSWER- D. Urethritis
5. Rhabdomyolysis is a complication of which type of toxicity?
A. Central nervous system stimulant
B. Opiate
C. Tricyclic antidepressant
D. Calcium channel blocker - ANSWER- A. Central nervous system stimulant
6. 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.
7. For which disorder is phenazopyridine (Pyridium) most commonly
administered? -
ANSWER- D. Urethritis
8. Which term defines pain caused by the stretching of a hollow organ and
is
described as cramping or a sensation of gas? - ANSWER- Visceral pain
9. When a patient is in the compensatory stage of shock, the body
preferentially
maintains blood flow to which organs? - ANSWER- heart and brain
10. Which laboratory test result should the nurse expect in a patient with
alcoholic
ketoacidosis? - ANSWER- Below normal to slightly elevated serum glucose level
11.Which finding is characteristic of preeclampsia? - ANSWER- Proteinuria
12.Sciatic nerve damage is associated with dislocation of which joint?
2
,A. Patellar
B. Knee
C. Hip
D. Ankle - ANSWER- C. Hip
13.Which intervention is indicated for a patient with circumferential full-thickness
burns of the chest, inadequate chest expansion, and restlessness? - ANSWER-
Escharotomy
14. Calcium channel blockers are indicated to treat which
dysrhythmia?
A. Atrial fibrillation
B. Accelerated junctional tachycardia
C. Second-degree atrioventricular block, type II
D. Polymorphic ventricular tachycardia - ANSWER- A.
RATIONALE: Treatment of atrial fibrillation aims to control the rapid ventricular
rate with medications, such as calcium channel blockers or beta-blockers. Calcium
channel blockers are not used to treat the other dysrhythmias listed. Accelerated
junctional tachycardia is a transient rhythm that only requires treatment of the
underlying disorder. Patients with second-degree atrioventricular block, type II,
require careful monitoring and may need transcutaneous pacing. Treatment for
polymorphic ventricular tachycardia is magnesium sulfate and defibrillation if the
patient's condition is unstable.
15. Activated charcoal can absorb which substance?
A. Cyanide
B. Kerosene
C. Lead
D. Potassium - ANSWER- B
16. Which herb can decrease the clotting time?
A. Evening primrose
B. Cinnamon
C. Garlic
3
, D. Skull cap - ANSWER- B. Cinnamon
17. Which medication causes urine retention? - ANSWER- D.
Diphenhydramine
(Benadryl)
18. The ingestion of the foxglove plant can cause which finding?
A. Hypertension
B. Bradycardia
C. Agitation
D. Lacrimation - ANSWER- B. Bradycardia
19. Which medication causes urine retention? - ANSWER- D.
Diphenhydramine
(Benadryl)
20. For a patient with a gunshot wound, which intervention is appropriate?
A. Perform a neurovascular assessment of each limb.
B. Estimate the amount of injury based on the wounds appearance.
C. Remove projectiles with Kelly clamps and place them in a sterile container.
D. Label the entrance and exits wounds. - ANSWER- A. Perform a neurovascular
assessment of each limb.
21. Which disorder is associated with fatty, foul-smelling stool? -
ANSWER-
Pancreatitis
22. Emergency needle thoracentesis is a treatment for which type of
shock
-
ANSWER- obstructive shock
4
