DHA Nursing Critical Care & Emergency 2

Question 1

What is the maximum single recommended dose of adrenaline (epinephrine) administered IV during adult cardiac arrest?

Accepted Answer

1 mg IV every 3–5 minutes

Answer

Current ACLS guidelines recommend 1 mg of IV epinephrine every 3–5 minutes during adult cardiac arrest to maintain coronary and cerebral perfusion pressure.

Question 2

A mechanically ventilated patient develops sudden hypotension and absent breath sounds on one side. What complication should the nurse suspect?

Accepted Answer

Tension pneumothorax

Answer

Sudden hypotension with unilateral absent breath sounds in a ventilated patient is the hallmark presentation of tension pneumothorax, a life-threatening emergency.

Question 3

The Glasgow Coma Scale (GCS) assesses which three patient responses?

Accepted Answer

Eye opening, verbal response, motor response

Answer

The GCS evaluates eye opening (4 points), verbal response (5 points), and motor response (6 points) to objectively quantify level of consciousness.

Question 4

Which ECG finding is the hallmark of ST-elevation myocardial infarction (STEMI)?

Accepted Answer

ST segment elevation of ≥1 mm in two or more contiguous leads

Answer

STEMI is diagnosed by ST elevation of ≥1 mm in two or more anatomically contiguous leads, indicating complete occlusion of a coronary artery requiring urgent reperfusion.

Question 5

A patient in the ICU develops acute respiratory distress syndrome (ARDS). Which ventilator strategy is recommended?

Accepted Answer

Low tidal volume ventilation (lung-protective ventilation, 6 mL/kg ideal body weight)

Answer

Lung-protective ventilation using low tidal volumes (6 mL/kg IBW) reduces ventilator-induced lung injury and is the evidence-based standard for ARDS management.

DHA Nursing Practice Test

DHA Nursing Practice Test

DHA Nursing Critical Care & Emergency 2