NUR2790 Exam 3 V2 | NUR 2790
Professional Nursing III / PN3 Exam Q&A |
Rasmussen University
1. A patient on a mechanical ventilator has a high-pressure alarm sounding. Which condition
is most likely causing this alarm?
A. A leak in the ventilator circuit
B. The patient has become disconnected from the ventilator
C. Patient biting the endotracheal tube
D. The endotracheal tube cuff is deflated
Answer: C
Rationale: High-pressure alarms are triggered by increased resistance to air delivery, such
as secretions, kinking of the tube, or the patient biting the tube. Low-pressure alarms are
usually caused by leaks or disconnections.
2. Using the Parkland formula, calculate the total fluid volume required in the first 24 hours
for a 70 kg patient with 40% total body surface area (TBSA) burns.
A. 5,600 mL
B. 11,200 mL
C. 8,400 mL
,D. 14,000 mL
Answer: B
Rationale: The Parkland formula is 4 mL x weight in kg x % TBSA. Here, 4 x 70 x 40 =
11,200 mL. Half is given in the first 8 hours, and the rest over the next 16 hours.
3. A nurse identifies Ventricular Fibrillation on the cardiac monitor for a patient who is
unresponsive. What is the priority nursing action?
A. Initiate immediate defibrillation
B. Perform synchronized cardioversion
C. Administer a bolus of Amiodarone
D. Assess for a carotid pulse for 15 seconds
Answer: A
Rationale: For pulseless Ventricular Fibrillation, immediate defibrillation is the treatment
of choice to restore a perfusing rhythm. CPR should be performed while the defibrillator is
being prepared.
4. A patient with a traumatic brain injury (TBI) exhibits Cushing’s Triad. Which assessment
findings correspond to this condition?
A. Tachycardia, hypotension, and tachypnea
B. Tachycardia, hypertension, and Kussmaul respirations
C. Bradycardia, hypotension, and Cheyne-Stokes respirations
, D. Bradycardia, hypertension with a widening pulse pressure, and irregular respirations
Answer: D
Rationale: Cushing’s Triad is a late sign of increased intracranial pressure (ICP)
characterized by bradycardia, hypertension (widening pulse pressure), and irregular
respirations.
5. In a mass casualty incident, a patient with a sucking chest wound is breathing but shows
signs of respiratory distress. Which triage tag should the nurse assign?
A. Green (Minimal)
B. Yellow (Delayed)
C. Black (Expectant)
D. Red (Immediate)
Answer: D
Rationale: Red tags are for patients with life-threatening but treatable injuries, such as
airway or breathing compromises like a sucking chest wound or tension pneumothorax.
6. Which medication is considered the first-line treatment for a patient experiencing
Symptomatic Sinus Bradycardia?
A. Epinephrine
B. Lidocaine
C. Dopamine
Professional Nursing III / PN3 Exam Q&A |
Rasmussen University
1. A patient on a mechanical ventilator has a high-pressure alarm sounding. Which condition
is most likely causing this alarm?
A. A leak in the ventilator circuit
B. The patient has become disconnected from the ventilator
C. Patient biting the endotracheal tube
D. The endotracheal tube cuff is deflated
Answer: C
Rationale: High-pressure alarms are triggered by increased resistance to air delivery, such
as secretions, kinking of the tube, or the patient biting the tube. Low-pressure alarms are
usually caused by leaks or disconnections.
2. Using the Parkland formula, calculate the total fluid volume required in the first 24 hours
for a 70 kg patient with 40% total body surface area (TBSA) burns.
A. 5,600 mL
B. 11,200 mL
C. 8,400 mL
,D. 14,000 mL
Answer: B
Rationale: The Parkland formula is 4 mL x weight in kg x % TBSA. Here, 4 x 70 x 40 =
11,200 mL. Half is given in the first 8 hours, and the rest over the next 16 hours.
3. A nurse identifies Ventricular Fibrillation on the cardiac monitor for a patient who is
unresponsive. What is the priority nursing action?
A. Initiate immediate defibrillation
B. Perform synchronized cardioversion
C. Administer a bolus of Amiodarone
D. Assess for a carotid pulse for 15 seconds
Answer: A
Rationale: For pulseless Ventricular Fibrillation, immediate defibrillation is the treatment
of choice to restore a perfusing rhythm. CPR should be performed while the defibrillator is
being prepared.
4. A patient with a traumatic brain injury (TBI) exhibits Cushing’s Triad. Which assessment
findings correspond to this condition?
A. Tachycardia, hypotension, and tachypnea
B. Tachycardia, hypertension, and Kussmaul respirations
C. Bradycardia, hypotension, and Cheyne-Stokes respirations
, D. Bradycardia, hypertension with a widening pulse pressure, and irregular respirations
Answer: D
Rationale: Cushing’s Triad is a late sign of increased intracranial pressure (ICP)
characterized by bradycardia, hypertension (widening pulse pressure), and irregular
respirations.
5. In a mass casualty incident, a patient with a sucking chest wound is breathing but shows
signs of respiratory distress. Which triage tag should the nurse assign?
A. Green (Minimal)
B. Yellow (Delayed)
C. Black (Expectant)
D. Red (Immediate)
Answer: D
Rationale: Red tags are for patients with life-threatening but treatable injuries, such as
airway or breathing compromises like a sucking chest wound or tension pneumothorax.
6. Which medication is considered the first-line treatment for a patient experiencing
Symptomatic Sinus Bradycardia?
A. Epinephrine
B. Lidocaine
C. Dopamine
