Day-Care, Remote-Location Anaesthesia and Procedural Sedation (MAC) MCQs

Anaesthesia · 18 free questions with answers & explanations.

1. A 55-year-old patient with ASA III status (well-controlled hypertension, BMI 33 kg/m²) is scheduled for colonoscopy under Monitored Anaesthesia Care (MAC). Which drug combination is MOST appropriate for deep procedural sedation while preserving spontaneous ventilation?
2. For ambulatory (day-care) surgery, which criterion MOST strongly predicts the need for unplanned hospital admission after discharge?
3. Remote-location anaesthesia for MRI scanning in a paediatric patient aged 4 years carries unique challenges. Which of the following is the PRIMARY safety concern specific to the MRI environment?
4. Dexmedetomidine is used for procedural sedation in an adult during an awake fibreoptic intubation. Its mechanism of action and key property that distinguishes it from benzodiazepines and propofol is:
5. A 48-year-old woman requires electroconvulsive therapy (ECT) for treatment-resistant depression. The purpose of using succinylcholine during ECT is:
6. Which of the following is a CONTRAINDICATION to day-care (outpatient) surgery under general anaesthesia?
7. Monitored anaesthesia care (MAC) provides sedation for a procedure without general anaesthesia. The CRITICAL distinction between 'deep sedation' and 'general anaesthesia' in MAC is:
8. In remote-location anaesthesia (e.g., MRI suite, cardiac catheterisation lab), which unique challenge distinguishes it from theatre-based anaesthesia?
9. Regarding discharge criteria after day-care surgery, the Modified Aldrete Score (MAS) of ≥9 allows discharge from the post-anaesthesia care unit (PACU) Phase I to Phase II recovery. Which parameter is UNIQUELY included in the Modified Aldrete Score compared to the original Aldrete score?
10. A 55-year-old diabetic patient scheduled for day-care inguinal hernia repair under spinal anaesthesia is cleared fit for day surgery. Which criterion is essential before discharging home after spinal anaesthesia?
11. Monitored anaesthesia care (MAC) is being administered to a 70-year-old for a colonoscopy. The target sedation level is a patient who responds purposefully to verbal commands. This corresponds to which Ramsay Sedation Scale score and which ASA definition of sedation level?
12. A patient with Mallampati class III, BMI 48 kg/m², and OSA is scheduled for a MRI-guided liver biopsy under MAC sedation at a remote location. What is the MOST important precaution for safe MAC at remote sites?
13. Which of the following medications used in office-based or MAC sedation has the SHORTEST context-sensitive half-time, making it most suitable for brief diagnostic procedures requiring rapid recovery?
14. A 7-year-old child requires repeated MRI sessions under sedation for brain tumour follow-up. Which inhalational induction agent is appropriate for children in remote locations (MRI suite) and which ferromagnetic risk must be anticipated?
15. A patient is scheduled for monitored anaesthesia care (MAC) for an outpatient colonoscopy. Which of the following is NOT among the ASA-recommended minimum monitoring standards for MAC sedation?
16. A healthy 32-year-old is to have a wisdom tooth extraction under IV sedation as a day-surgery patient. He ate a heavy meal 3 hours ago. Which statement BEST reflects the application of ASA NPO guidelines?
17. A patient receives dexmedetomidine infusion for procedural sedation during an MRI-guided biopsy in a remote radiology suite. Which unique property of dexmedetomidine makes it MOST advantageous in this setting compared to propofol?
18. A 45-year-old patient is assessed for suitability for day-surgery. Which condition would constitute an ABSOLUTE contraindication to ambulatory (day-care) surgery?