Question 01: Full Stomach & Aspiration Precautions

All of the followings are anesthetic measures to reduce the risk of regurgitation & aspiration in full stomach cases EXCEPT:

  • [ ] Regional anesthesia if possible

  • [ ] Delay surgery if not emergency

  • [✓] N/G tube should be kept in place during induction of anesthesia (CORRECT)

  • [ ] Decreasing of gastric contents

Question 02: Airborne Infection Isolation PPE

You are working in the operating room during the COVID-19 pandemic. You are about to receive a confirmed COVID-19 case who has severe trauma. What Personal Protective Equipment should you wear inside this operation?

  • [ ] Gown, gloves, eye goggles and mask

  • [ ] Gown, gloves, eye goggles

  • [ ✓] N95 respirator, Gown, gloves, eye goggles (CORRECT)

  • [ ] Surgical mask and gloves only

Note: For aerosol-generating procedures (AGPs) or high-risk operative environments involving airborne pathogens, an N95 respirator (or equivalent/higher protection) is essential alongside standard contact and eye protection.

Question 03: Neuromuscular Blockers for Airway Procedures

A patient undergoes bronchoscopy or removal of a foreign body. What neuromuscular blocker (NMB) is the best choice in this procedure?

  • [✓] Succinylcholine (CORRECT)

  • [ ] Vecuronium

  • [ ] Cisatracurium

  • [ ] Atracurium

Question 04: Normal Capnography

While observing a 25 year old male healthy patient undergoing appendectomy under GA, a normal ETCO2 you'd accept for this patient is:

  • [✓] 40 mmHg. (CORRECT)

  • [ ] 50 mmHg.

  • [ ] 30 mmHg.

  • [ ] 20 mmHg.

Question 05: Controlled Hypotensive Anesthesia

Hypotensive anesthesia is indicated in:

  • [ ] Inguinal hernia

  • [✓] Rhinoplasty (CORRECT)

  • [ ] Laparoscopy cholecystectomy

  • [ ] Mastectomy

Question 06: Mean Arterial Pressure (MAP) Calculation

If the Blood Pressure of a patient is 150/90, then the Mean Arterial Pressure is approximately:

  • [ ] 70 mmHg.

  • [ ] 100 mmHg.

  • [✓] 110 mmHg. (CORRECT)

  • [ ] 130 mmHg.

Calculation:

$$\text{MAP} = \text{DBP} + \frac{1}{3}(\text{SBP} - \text{DBP}) = 90 + \frac{1}{3}(150 - 90) = 90 + 20 = 110\text{ mmHg}$$

Question 07: Accidental Intra-Arterial Injection

In a 60 kg man, for induction of anesthesia, 350 mg of thiopentone sodium was injected through a cannula placed in the cubital fossa. Even after 3 minutes, the patient was still awake, the fingers of the cannulated hand started turning blue, and the patient complained of severe hand pain. Which intervention is most appropriate at this stage?

  • [ ] Injection of more thiopentone, suspecting inadequate dose of thiopentone

  • [ ] Injection of sodium bicarbonate through the same cannula to treat acidosis caused by tissue hypoxia

  • [✓] Injection of Lidocaine through the same cannula (CORRECT)

  • [ ] Immediately remove the cannula and cannulate another vein to continue the procedure.

Question 08: Anesthetic Circuit Components

What component of the circle system is not present in a Mapleson circuit?

  • [✓] CO2 absorber (CORRECT)

  • [ ] Reservoir

  • [ ] Fresh gas inlet

  • [ ] APL valve

Question 09: Resuscitation Equipment

Which one of the followings is false about AMBU Bag?

  • [ ] Used for emergency ventilation because of their simplicity and portability

  • [✓] It is not necessary in the operation room (CORRECT)

  • [ ] Able to deliver almost 100% oxygen

  • [ ] It contains a non-rebreathing valve

Question 10: Post-Anesthetic Emergence Reactions

After emergence from anesthesia, a patient in the recovery room experiences vivid dreams and hallucinations. The most probable hypnotic drug used in this case is:

  • [ ] Propofol

  • [ ] Pentothal

  • [✓] Ketamine (CORRECT)

  • [ ] Midazolam

Question 11: Nitrous Oxide Physics & Cylinder Pressure

If pressure in a full N2O “E” cylinder is 745 psi at 20°C, the pressure in a half-full cylinder is about:

  • [ ] 186 psi

  • [ ] 248 psi

  • [ ] 372 psi

  • [✓] 745 psi (CORRECT)

Note: Nitrous oxide exists as a liquid-gas mixture under pressure at room temperature. As long as liquid N2O remains in the cylinder, the vapor pressure remains constant (~745 psi at 20°C).

Question 12: Local Anesthetic Systemic Toxicity (LAST)

Which of the following is the most common early sign/symptom of Local Anesthetic Systemic Toxicity (LAST)?

  • [ ] Agitation

  • [✓] Perioral numbness (CORRECT)

  • [ ] Dizziness

  • [ ] Loss of consciousness

Question 13: Spinal Cord Termination Levels

Which of the following spinal levels identifies where the spinal cord terminates in adults and infants?

  • [ ] L1 in adults, S1 in infants

  • [ ] L1 in adults, S3 in infants

  • [✓] L1 in adults, L3 in infants (CORRECT)

  • [ ] L3 in adults, S1 in infants

Question 14: Caudal Block Anatomy

When performing a single-shot caudal block, you must first pierce through which ligament?

  • [✓] Sacrococcygeal (CORRECT)

  • [ ] Sacrotuberous

  • [ ] Sacrospinous

  • [ ] Sacroiliac

Question 15: Cardiac Arrest Management

After determining that a patient has no pulse, which one of the following forms of treatment should be used initially for a patient with ventricular fibrillation?

  • [ ] CPR

  • [✓] Defibrillation (CORRECT)

  • [ ] Epinephrine IV

  • [ ] Lidocaine IV

Last modified: Sunday, 18 October 2026, 6:49 AM