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Certified Anesthesiologist Assistant
Recertification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A Instant
Download Pdf
___________________________________________________________________
1. A patient under general anesthesia develops a sudden increase in end-tidal
carbon dioxide, tachycardia, muscle rigidity, and hyperthermia. Which
condition should be suspected?
A. Anaphylaxis
B. Malignant hyperthermia
C. Thyroid storm
D. Neuroleptic malignant syndrome
Answer: B. Malignant hyperthermia
Rationale: Malignant hyperthermia is a life-threatening hypermetabolic reaction
associated with certain anesthetic agents, characterized by rapidly increasing
carbon dioxide production, tachycardia, rigidity, acidosis, and hyperthermia.
2. Which medication is the definitive treatment for malignant hyperthermia?
A. Atropine
B. Epinephrine
C. Dantrolene
D. Amiodarone
,Answer: C. Dantrolene
Rationale: Dantrolene reduces calcium release from the sarcoplasmic reticulum
and is the specific treatment for malignant hyperthermia.
3. Which ECG finding is most characteristic of hyperkalemia?
A. Prolonged QT interval
B. Peaked T waves
C. U waves
D. ST elevation in all leads
Answer: B. Peaked T waves
Rationale: Early hyperkalemia commonly produces tall, peaked T waves.
Progressive hyperkalemia can cause PR prolongation, QRS widening, and
potentially fatal arrhythmias.
4. A patient develops severe hypotension shortly after induction of general
anesthesia. Which medication is commonly used as a first-line vasopressor
for profound vasodilation with preserved heart rate?
A. Phenylephrine
B. Ephedrine
C. Nitroglycerin
D. Adenosine
Answer: A. Phenylephrine
Rationale: Phenylephrine is a primarily alpha-1 adrenergic agonist that
increases systemic vascular resistance and is commonly used for anesthesia-
related vasodilatory hypotension.
5. Which neuromuscular blocker is classified as a depolarizing agent?
A. Rocuronium
B. Vecuronium
C. Cisatracurium
D. Succinylcholine
,Answer: D. Succinylcholine
Rationale: Succinylcholine produces persistent depolarization at the
neuromuscular junction and is the primary depolarizing neuromuscular blocker
used clinically.
6. Which reversal agent directly encapsulates steroidal neuromuscular
blockers such as rocuronium?
A. Neostigmine
B. Sugammadex
C. Atropine
D. Glycopyrrolate
Answer: B. Sugammadex
Rationale: Sugammadex forms a complex with aminosteroid neuromuscular
blockers, particularly rocuronium and vecuronium, allowing rapid reversal of
their effects.
7. Which monitoring modality provides the most direct continuous
assessment of ventilation during general anesthesia?
A. Pulse oximetry
B. Noninvasive blood pressure
C. Capnography
D. ECG
Answer: C. Capnography
Rationale: Capnography continuously measures exhaled carbon dioxide and
provides information about ventilation, airway patency, and respiratory
patterns.
8. A sudden loss of the capnography waveform during anesthesia should
initially raise concern for which problem?
A. Hyperglycemia
B. Circuit disconnection or apnea
, C. Hypertension
D. Hypothermia
Answer: B. Circuit disconnection or apnea
Rationale: Abrupt disappearance of exhaled carbon dioxide can result from
apnea, airway obstruction, circuit disconnection, accidental extubation, or
severe reduction in pulmonary blood flow.
9. Which local anesthetic has the greatest association with cardiotoxicity
among commonly used long-acting local anesthetics?
A. Lidocaine
B. Chloroprocaine
C. Bupivacaine
D. Procaine
Answer: C. Bupivacaine
Rationale: Bupivacaine is highly lipid soluble and has significant cardiac sodium-
channel effects. Severe systemic toxicity can produce ventricular arrhythmias
and cardiovascular collapse.
10.What is the recommended treatment for severe local anesthetic systemic
toxicity with cardiovascular or neurologic manifestations?
A. Intravenous lipid emulsion therapy
B. Oral activated charcoal
C. Calcium carbonate
D. Flumazenil
Answer: A. Intravenous lipid emulsion therapy
Rationale: Intravenous lipid emulsion is an important component of treatment
for severe local anesthetic systemic toxicity, particularly when cardiovascular
instability or serious neurologic toxicity occurs.
11.Which inhaled anesthetic has the lowest blood-gas solubility among the
commonly used volatile anesthetics?
Certified Anesthesiologist Assistant
Recertification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A Instant
Download Pdf
___________________________________________________________________
1. A patient under general anesthesia develops a sudden increase in end-tidal
carbon dioxide, tachycardia, muscle rigidity, and hyperthermia. Which
condition should be suspected?
A. Anaphylaxis
B. Malignant hyperthermia
C. Thyroid storm
D. Neuroleptic malignant syndrome
Answer: B. Malignant hyperthermia
Rationale: Malignant hyperthermia is a life-threatening hypermetabolic reaction
associated with certain anesthetic agents, characterized by rapidly increasing
carbon dioxide production, tachycardia, rigidity, acidosis, and hyperthermia.
2. Which medication is the definitive treatment for malignant hyperthermia?
A. Atropine
B. Epinephrine
C. Dantrolene
D. Amiodarone
,Answer: C. Dantrolene
Rationale: Dantrolene reduces calcium release from the sarcoplasmic reticulum
and is the specific treatment for malignant hyperthermia.
3. Which ECG finding is most characteristic of hyperkalemia?
A. Prolonged QT interval
B. Peaked T waves
C. U waves
D. ST elevation in all leads
Answer: B. Peaked T waves
Rationale: Early hyperkalemia commonly produces tall, peaked T waves.
Progressive hyperkalemia can cause PR prolongation, QRS widening, and
potentially fatal arrhythmias.
4. A patient develops severe hypotension shortly after induction of general
anesthesia. Which medication is commonly used as a first-line vasopressor
for profound vasodilation with preserved heart rate?
A. Phenylephrine
B. Ephedrine
C. Nitroglycerin
D. Adenosine
Answer: A. Phenylephrine
Rationale: Phenylephrine is a primarily alpha-1 adrenergic agonist that
increases systemic vascular resistance and is commonly used for anesthesia-
related vasodilatory hypotension.
5. Which neuromuscular blocker is classified as a depolarizing agent?
A. Rocuronium
B. Vecuronium
C. Cisatracurium
D. Succinylcholine
,Answer: D. Succinylcholine
Rationale: Succinylcholine produces persistent depolarization at the
neuromuscular junction and is the primary depolarizing neuromuscular blocker
used clinically.
6. Which reversal agent directly encapsulates steroidal neuromuscular
blockers such as rocuronium?
A. Neostigmine
B. Sugammadex
C. Atropine
D. Glycopyrrolate
Answer: B. Sugammadex
Rationale: Sugammadex forms a complex with aminosteroid neuromuscular
blockers, particularly rocuronium and vecuronium, allowing rapid reversal of
their effects.
7. Which monitoring modality provides the most direct continuous
assessment of ventilation during general anesthesia?
A. Pulse oximetry
B. Noninvasive blood pressure
C. Capnography
D. ECG
Answer: C. Capnography
Rationale: Capnography continuously measures exhaled carbon dioxide and
provides information about ventilation, airway patency, and respiratory
patterns.
8. A sudden loss of the capnography waveform during anesthesia should
initially raise concern for which problem?
A. Hyperglycemia
B. Circuit disconnection or apnea
, C. Hypertension
D. Hypothermia
Answer: B. Circuit disconnection or apnea
Rationale: Abrupt disappearance of exhaled carbon dioxide can result from
apnea, airway obstruction, circuit disconnection, accidental extubation, or
severe reduction in pulmonary blood flow.
9. Which local anesthetic has the greatest association with cardiotoxicity
among commonly used long-acting local anesthetics?
A. Lidocaine
B. Chloroprocaine
C. Bupivacaine
D. Procaine
Answer: C. Bupivacaine
Rationale: Bupivacaine is highly lipid soluble and has significant cardiac sodium-
channel effects. Severe systemic toxicity can produce ventricular arrhythmias
and cardiovascular collapse.
10.What is the recommended treatment for severe local anesthetic systemic
toxicity with cardiovascular or neurologic manifestations?
A. Intravenous lipid emulsion therapy
B. Oral activated charcoal
C. Calcium carbonate
D. Flumazenil
Answer: A. Intravenous lipid emulsion therapy
Rationale: Intravenous lipid emulsion is an important component of treatment
for severe local anesthetic systemic toxicity, particularly when cardiovascular
instability or serious neurologic toxicity occurs.
11.Which inhaled anesthetic has the lowest blood-gas solubility among the
commonly used volatile anesthetics?
