Critical Care and Emergency Nursing Flashcards
7 cards from real DOH NURSING practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Critical Care and Emergency Nursing flashcards as text
A high peak airway pressure alarm sounds on a mechanically ventilated patient. What should the nurse do FIRST?
Answer: Check the ventilator circuit for kinks or obstruction
Kinked or obstructed tubing is the most common, easily correctable cause of high peak airway pressure and should be ruled out first.
Which electrolyte imbalance is most commonly associated with life-threatening cardiac dysrhythmias in ICU patients?
Answer: Hypokalamia
Hypokalaemia reduces myocardial cell membrane stability and significantly increases the risk of ventricular dysrhythmias including VF.
According to the Surviving Sepsis Campaign guidelines, what is the recommended initial IV fluid bolus for septic shock?
Answer: 30 mL/kg of crystalloid within 3 hours
The Surviving Sepsis Campaign recommends at least 30 mL/kg of IV crystalloid within the first 3 hours of recognising septic shock.
A Glasgow Coma Scale (GCS) score of 8 or less indicates which level of neurological impairment?
Answer: Severe brain injury — airway protection is a priority
GCS ≤8 defines severe brain injury and typically warrants immediate airway protection, often through endotracheal intubation.
What is the recommended chest compression-to-ventilation ratio for single-rescuer adult CPR per AHA/ERC guidelines?
Answer: 30:2
Current guidelines recommend a 30:2 compression-to-ventilation ratio for single-rescuer adult CPR to minimise interruptions to chest compressions.
A patient develops sudden stridor immediately after endotracheal tube extubation. What is the nurse's priority action?
Answer: Apply high-flow oxygen and notify the physician immediately
Post-extubation stridor signals upper airway obstruction; applying oxygen and immediately alerting the physician is the priority while preparing for potential reintubation.
Which laboratory parameter BEST reflects adequate tissue oxygenation at the cellular level in a critically ill patient?
Answer: Serum lactate < 2 mmol/L
Serum lactate reflects cellular oxygen utilisation; a lactate < 2 mmol/L indicates aerobic metabolism and adequate tissue oxygenation.
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Sources & references
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- doh.gov.ae — Eligibility, fees, passing score, registration deadline, renewal, retake policy, time limit, score validity · verified Oct 2026
- pearsonvue.com — Test delivery · verified Oct 2026