10 Random Questions
The flow proportioning system on an anesthesia machine
(A) is regulated primarily by changes in oxygen input pressure
(B) limits nitrous oxide flow when oxygen pressure falls below a preset value
(C) maintains a minimum ratio of oxygen to nitrous oxide in fresh gas flow
(D) precludes the use of a closed system
(E) regulates flows of oxygen and nitrous oxide to maintain a fixed FlO:
Reveal Answer
BASIC
Equipment & Physics
A patient develops urticaria and pruritus while receiving a blood transfusion in the PACU. Blood pressure and heart rate are unchanged from pretransfusion values. The most appropriate action is administration of
(A) diphenhydramine
(B) epinephrine
(C) furosemide
(D) hydrocortisone
(E) mannitol
Reveal Answer
BASIC
Transfusions & Fluids
Hypothermia to 29°C will decrease
(A) hematocrit
(B) plasma fibrinogen concentration
(C) plasma pH
(D) plasma protein concentration
(E) platelet function
Reveal Answer
BASIC
General
Leakage current and microshock hazards are eliminated by
(A) an isolation transformer
(B) conductive flooring
(C) a three-wire grounding system
(D) a line-isolation monitor
(E) none of the above
Reveal Answer
BASIC
Equipment & Physics
Preoperative administration of an alpha-adrenergic blocker for 10 days to patients with pheochromocytoma will decrease
(A) episodic tachycardia
(B) hyperglycemia
(C) hypovolemia
(D) nasal stuffiness
(E) postural hypotension
Reveal Answer
ADVANCED
General
A 57-year-old man has back pain, a heart rate of 90 bpm, decreased pulse in the left arm, and blood pressure of 200/110 mmHg. During infusion of nitroprusside, heart rate increases to 115 bpm and blood pressure decreases to 140/80 mmHg. The most appropriate management at this time is administration of
(A) droperidol
(B) nifedipine
(C) normal saline solution
(D) propranolol
(E) verapamil
Reveal Answer
ADVANCED
General
Which of the following is a known effect of propofol?
(A) Decreased amplitude of somatosensory evoked potentials
(B) Induction of malignant hyperthermia
(C) Inhibition of cytochrome P450
(D) Initiation of porphyria
(E) Suppression of adrenocortical function
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Which of the following is the most important function of temperature compensation in anesthetic vaporizers?
(A) Compensation for changes in the specific heat of the anesthetic during vaporization
(B) Delivery of diluent gas at a constant temperature regardless of flow rate
(C) Increase of bypass flow when the vaporizer is cooled by high fresh gas flow
(D) Maintenance of constant anesthetic vapor output over a range of vaporizer temperatures
(E) Maintenance of constant vapor concentrations at low flow rates
Reveal Answer
BASIC
Equipment & Physics
Nausea and vomiting in pediatric outpatients are
(A) directly related to postoperative pain
(B) unrelated to the length of the procedure
(C) eliminated by preoperative administration of droperidol
(D) eliminated by intraoperative nasogastric drainage
(E) more frequent than in adults
Reveal Answer
ADVANCED
Pediatric
Which of the following is an indication for administration of fresh frozen plasma?
(A) Antithrombin III deficiency
(B) Emergency antagonism of heparin effect
(C) Hemophilia A
(D) Transfusion of 5 units of homologous erythrocytes
(E) Uremic coagulopathy
Reveal Answer
BASIC
Transfusions & Fluids