BCSE Principles of Anesthesia 3

Question 1

Neostigmine is administered to reverse neuromuscular blockade. Which agent should always be co-administered?

Accepted Answer

Atropine or glycopyrrolate

Answer

An anticholinergic (atropine or glycopyrrolate) must accompany neostigmine to counteract muscarinic side effects including bradycardia and bronchospasm.

Question 2

A patient with a full stomach requires emergent general anesthesia. Which induction technique minimizes aspiration risk?

Accepted Answer

Rapid sequence induction with cricoid pressure

Answer

Rapid sequence induction with cricoid pressure (Sellick's maneuver) is the standard technique to minimize pulmonary aspiration risk in patients with full stomachs.

Question 3

Which pulmonary function test finding best predicts post-operative pulmonary complications?

Accepted Answer

FEV1 < 40% predicted

Answer

An FEV1 < 40% predicted indicates severe obstructive disease and is associated with significantly increased risk of post-operative respiratory complications.

Question 4

Sugammadex reverses neuromuscular blockade by which mechanism?

Accepted Answer

Encapsulating rocuronium or vecuronium molecules

Answer

Sugammadex is a modified gamma-cyclodextrin that encapsulates and inactivates steroidal neuromuscular blocking agents like rocuronium and vecuronium.

Question 5

Which type of breathing circuit minimizes rebreathing and eliminates the need for carbon dioxide absorbent?

Accepted Answer

Mapleson D (Bain) circuit at high fresh gas flows

Answer

The Mapleson D (Bain) circuit eliminates CO2 rebreathing at fresh gas flows ≥ 2× minute ventilation, making CO2 absorbent unnecessary.

BCSE - Basic and Clinical Sciences Examination Practice Test

BCSE - Basic and Clinical Sciences Examination Practice Test

BCSE Principles of Anesthesia 3