10 Random Questions
In a patient who has undergone cholecystectomy, which of the following is the most likely pulmonary effect of systemically administered opioids?
(A) Decreased Qs/Qt
(B) Decreased dead space
(C) Restored vital capacity
(D) Restored functional residual capacity
(E) Shift of the carbon dioxide response curve to the right
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Compared with adults, neonates are more likely to become hypoxemic following anesthesia and extubation because of a relatively
(A) higher rate of oxygen consumption
(B) greater sensitivity to neuromuscular blockade
(C) larger Vd/Vt ratio
(D) lower blood pressure
(E) smaller functional residual capacity
Reveal Answer
ADVANCED
Pediatric
Which of the following statements concerning the pharmacokinetics of local anesthetics is true?
(A) Decreased molecular weight is associated with decreased incidence of allergic reactions
(B) Decreased protein binding is associated with decreased systemic toxicity
(C) Increased ionization is associated with increased placental transfer
(D) Increased lipid solubility is associated with faster onset
(E) Presence of an ester linkage is associated with increased duration of action
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
One week after sustaining third-degree burns over 40% of his body surface area, a patient requires general anesthesia for debridement and skin grafting. Which of the following responses to neuromuscular blockers is most likely?
(A) Clinically insignificant increases in serum potassium concentration after administration of succinylcholine 1 mg/kg
(B) Increased risk of hyperkalemia after administration of succinylcholine 1 mg/kg
(C) Increased sensitivity to vecuronium
(D) Laudanosine toxicity after administration of atracurium 0.4 mg/kg
(E) Normal serum potassium concentration if administration of succinylcholine is preceded by d-tubocurarine 3 mg
Reveal Answer
ADVANCED
Pharmacology & Pharmacokinetics
A rapid shallow ventilatory pattern is most energy efficient for a patient who
(A) has a low ratio of forced expiratory volume in one second to vital capacity (FEV^VC)
(B) has a high ratio of tidal volume to vital capacity, and diminished vital capacity
(C) has increased pulmonary compliance
(D) is using the accessory muscles of respiration
(E) has increased airway resistance
Reveal Answer
Which of the following antihypertensive drugs is most likely to cause bradycardia?
(A) Captopril
(B) Clonidine
(C) Hydralazine
(D) Nifedipine
(E) Phenoxybenzamine
Reveal Answer
Which of the following abnormalities in serum is most likely to result from intraoperative discontinuation of parenteral hyperalimentation?
(A) Hypocalcemia
(B) Hypocarbia
(C) Hypoglycemia
(D) Hypokalemia
(E) Hyponatremia
Reveal Answer
BASIC
Transfusions & Fluids
General
Which of the following is the most appropriate action after an anesthetic vaporizer is tipped?
(A) Return to the manufacturer for recalibration
(B) Flush the vaporizer with oxygen at 5 L/min for 24 hours
(C) Store the vaporizer for 24 hours at room temperature
(D) Set the vaporizer at low concentration and flush with oxygen at 10 L/min for 30 minutes
(E) Verify the vaporizer output with mass spectrography
Reveal Answer
BASIC
Equipment & Physics
Which of the following is the most common initial manifestation of malignant hyperthermia?
(A) Hyperkalemia
(B) Increased distal esophageal temperature
(C) Increased PETCO2
(D) Red discoloration of urine
(E) Ventricular irritability
Reveal Answer
BASIC
General
Which of the following factors causes a decrease in mixed venous oxygen saturation?
(A) Arteriovenous fistula
(B) Decreased hemoglobin concentration
(C) Decreased oxygen consumption
(D) Increased cardiac output
(E) Nitroprusside toxicity
Reveal Answer
BASIC
Respiratory & Critical Care