1. Scenario: A patient in the ICU is receiving Mechanical Ventilation. The "High Pressure" alarm begins to sound.
Which of the following should the nurse assess for first?
A. A leak in the ventilator circuit.
B. The patient biting the endotracheal tube or needing suctioning.
C. Disconnection of the oxygen source.
D. Spontaneous breathing by the patient.
Rationale: High Pressure (B) alarms are caused by resistance (biting, secretions, kinks). Leaks (A) cause "Low Pressure" alarms.
2. Scenario: A patient presents with a suspected Myocardial Infarction. The ECG shows ST-segment elevation in leads II, III, and aVF.
Which area of the heart is primarily affected?
A. Anterior Wall
B. Lateral Wall
C. Inferior Wall
D. Septal Wall
Rationale: Elevations in II, III, and aVF indicate an Inferior Wall MI (C), usually involving the Right Coronary Artery.
3. Scenario: A patient is prescribed Digoxin for Heart Failure. Before administration, the nurse notes the heart rate is 52 bpm.
What is the correct nursing action?
A. Administer the dose and recheck in 30 minutes.
B. Withhold the dose and notify the provider.
C. Give half the dose.
D. Administer a dose of Atropine instead.
Rationale: Digoxin is a negative chronotrope. It should be withheld (B) if the pulse is below 60 bpm to avoid toxicity.
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