FCPS IMM Anesthesia MCQs: High-Yield Practice Questions & Prep
A mixed set of FCPS IMM Anesthesia MCQs across the main subject blocks, each with the reasoning behind the answer.

This is a mixed sample from the FCPS IMM Anesthesia QBank, taken across subject blocks so you can gauge the level and style. Each answer is followed by the reasoning.
Sample MCQs
1. Treatment of local anaesthetic systemic toxicity is:
- A) 20% lipid emulsion bolus and infusion ✅
- B) Adrenaline 1 mg boluses
- C) Atropine
- D) Calcium chloride
Why: Intralipid is given with CPR as per AAGBI guidelines.
2. Which device in conventional oxygen therapy will provide the highest FiO2?
- A) Venturi mask
- B) Hudson mask
- C) Non rebreathing mask
- D) High Flow Nasal Cannula ✅
Why: High-Flow Nasal Cannula (HFNC) therapy is a mode of respiratory support that delivers a high flow of heated and humidified oxygen-enriched air through nasal prongs to patients with respiratory distress.
3. Diffusion hypoxia is prevented by:
- A) Reducing oxygen
- B) Hyperventilation
- C) 100% oxygen at the end of nitrous oxide anaesthesia ✅
- D) Preoxygenating only
Why: Rapid N2O outpouring dilutes alveolar oxygen.
4. What is the diagnosis for a 23-year-old female who has been experiencing fever for the past week and displays the following rhythm on the monitor?
- A) Atrial fibrillation ✅
- B) Atrial flutter
- C) Supra ventricular tachyarrhythmia
- D) Ventricular tachyarrhythmia
Why: Atrial fibrillation is a cardiac rhythm disorder characterized by rapid, irregular electrical impulses in the atria (upper chambers of the heart).
5. Which drug is most likely responsible for the occurrence of hyperthermia and muscle rigidity in a patient undergoing surgery while being administered anesthesia with halothane?
- A) D-curare
- B) Suxamethonium ✅
- C) Cis-atracurium
- D) Rocuronium
Why: Suxamethonium is a depolarizing neuromuscular blocker that is used during surgery to induce muscle relaxation.
6. A pregnant patient with pre-eclampsia is scheduled for a cesarean section. The anaesthesiologist opts for general anaesthesia. Which drug commonly used in general anaesthesia may have a prolonged effect in a patient receiving magnesium sulphate?
- A) Bupivacaine
- B) Fentanyl
- C) Lidocaine
- D) Succinylcholine ✅
Why: Magnesium sulfate is commonly used in pre-eclampsia to prevent seizures (eclampsia). It has several effects on neuromuscular transmission: Magnesium sulfate inhibits the release of acetylcholine at the neuromuscular junction and decreases the sensitivity of the motor endplate to acetylcholine.
7. Ketorolac is contraindicated in:
- A) Postoperative pain
- B) Dental pain
- C) Active peptic ulcer disease or renal impairment ✅
- D) Fever
Why: NSAIDs reduce renal perfusion in hypovolaemia.
8. A patient in the ICU with an endotracheal tube now needs a tracheostomy tube. Which type of tube will you use?
- A) Uncuffed tracheostomy tube
- B) Cuffed tracheostomy tube ✅
- C) Metallic tracheostomy tube.
- D) Endotracheal tube
Why: When a patient in the ICU requires a tracheostomy tube, the preferred choice is a cuffed tracheostomy tube. A cuffed tracheostomy tube has an inflatable cuff that helps to create a seal between the tube and the tracheal wall.
9. Emergence phenomena after ketamine are reduced by:
- A) Atropine
- B) Benzodiazepines ✅
- C) Neostigmine
- D) Glycopyrrolate
Why: Midazolam prevents hallucinations and vivid dreams.
10. During recovery from anesthesia, a patient started experiencing hallucinations and vivid dreams. Which inducing agent is most likely responsible?
- A) Ketamine ✅
- B) Propofol
- C) Thiopentone
- D) Etomidate
Why: Ketamine is a non opioid intravenous anesthetic agent that causes emergence delirium/ hallucinations and vivid dreams due to thalamo-cortical disassociation.
11. A 70-year-old patient with a history of hypertension is scheduled for cataract surgery under local anaesthesia. Which of the following is true regarding anaesthesia considerations in ocular procedures?
- A) The use of ketamine as the induction agent to prevent complications.
- B) Atropine is preferred to treat bradycardia due to the oculocardiac reflex. ✅
- C) Nitrous oxide is the preferred analgesic agent during vitreoretinal surgeries.
- D) Retrobulbar block for anaesthesia is preferred due to its least side effects.
Why: Atropine is preferred over glycopyrrolate, due to its fast action to treat bradycardia and other symptoms occurring during the event of an oculocardiac reflex.
12. A 35-year-old woman undergoes a laparoscopic hysterectomy under general anesthesia. After 5 minutes of preoxygenation with 100% oxygen, anesthesia is induced and maintained. What is the main purpose of preoxygenation in this case?
- A) To increase CO2 retention
- B) To ensure the patient's lungs are fully saturated with oxygen before induction ✅
- C) To reduce anesthesia depth requirement
- D) To reduce respiratory rate during anesthesia
Why: Preoxygenation involves administering 100% oxygen for about 5 minutes before anesthesia induction, which increases lung and blood oxygen levels.
Next Steps
Work through one subject at a time in Tutor mode, then move to mixed Timed sets. Confirm the current exam format with CPSP.
Frequently Asked Questions
Is there a free trial?
Yes, a limited free batch is available in Tutor mode.
How are the questions organised?
By subject block, so you can drill one area at a time or take mixed sets.
Practise With the Full QBank
The FCPS IMM Anesthesia QBank has a free trial batch in Tutor mode, subject filters and Timed mode. Related: complete exam guide, how to use recalls.
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