CSC CSC Patient Safety & Complication Management 2 — Questions and Answers
Question 1: Which of the following best describes an anaphylactic reaction in the context of sedation procedures?
- Mild urticaria limited to the injection site
- Severe, life-threatening systemic hypersensitivity reaction requiring immediate epinephrine (Correct answer)
- A predictable dose-related drug side effect
- Anxiety-mediated vasovagal response
Correct answer: Severe, life-threatening systemic hypersensitivity reaction requiring immediate epinephrine
Anaphylaxis is a severe IgE-mediated systemic reaction that can cause cardiovascular collapse and bronchospasm, requiring immediate IM epinephrine as first-line treatment.
Question 2: A patient's heart rate drops to 42 bpm and blood pressure falls to 82/50 mmHg after receiving IV fentanyl and midazolam. What is the most likely cause?
- Malignant hyperthermia
- Vagally-mediated bradycardia combined with hypotension from vasodilation (Correct answer)
- Pulmonary embolism
- Septic shock
Correct answer: Vagally-mediated bradycardia combined with hypotension from vasodilation
Combined opioid-benzodiazepine administration can cause vagal bradycardia and vasodilatory hypotension, a recognized hemodynamic complication of moderate sedation.
Question 3: Which of the following is the FIRST step in managing a suspected malignant hyperthermia (MH) crisis during a sedation procedure?
- Administer IV succinylcholine
- Discontinue triggering agents and administer dantrolene (Correct answer)
- Apply cooling blankets only
- Increase volatile anesthetic concentration
Correct answer: Discontinue triggering agents and administer dantrolene
MH treatment begins with immediate discontinuation of triggering agents (volatile anesthetics/succinylcholine) and rapid IV administration of dantrolene sodium.
Question 4: What action should be taken if a patient undergoing moderate sedation becomes unresponsive and apneic?
- Wait 30 seconds and reassess
- Activate the emergency response system and initiate CPR/BLS (Correct answer)
- Administer another dose of sedative to stabilize
- Place the patient in Trendelenburg position only
Correct answer: Activate the emergency response system and initiate CPR/BLS
Unresponsiveness and apnea represent a life-threatening emergency requiring immediate activation of the emergency response system and initiation of basic life support.
Question 5: Which factor most significantly increases a patient's risk of hypotension during moderate sedation?
- Young age
- Hypovolemia or dehydration prior to the procedure (Correct answer)
- Female sex
- High Mallampati score
Correct answer: Hypovolemia or dehydration prior to the procedure
Dehydrated or hypovolemic patients have reduced preload and are highly sensitive to the vasodilatory effects of sedative agents, making hypotension much more likely.
Question 6: A patient develops a paradoxical reaction to midazolam, becoming increasingly agitated and combative. What is the BEST management approach?
- Administer more midazolam to overcome the reaction
- Administer flumazenil to reverse the benzodiazepine and consider an alternative agent (Correct answer)
- Physically restrain the patient and continue the procedure
- Administer an opioid to sedate the patient
Correct answer: Administer flumazenil to reverse the benzodiazepine and consider an alternative agent
Paradoxical reactions to benzodiazepines are best managed by administering flumazenil to reverse midazolam and reassessing sedation options with an appropriate alternative.
CSC CSC Patient Safety & Complication Management 2
Which of the following best describes an anaphylactic reaction in the context of sedation procedures?