10 Random Questions
The primary mechanism for pharmacologic reduction of intraoperative blood loss is
(A) decreased blood viscosity
(B) decreased cardiac output
(C) decreased venous return
(D) direct myocardial depression
(E) hypotension
Reveal Answer
Each of the following structures may participate in causing acute bradycardia during strabismus surgery EXCEPT the
(A) globe
(B) rectus muscles
(C) optic nerve
(D) trigeminal nerve
(E) vagus nerve
Reveal Answer
BASIC
Pediatric
General
In an unpremedicated, spontaneously breathing patient, an alveolar halothane concentration of 0.74% in oxygen is consistently associated with
(A) absence of overt response to skin incision
(B) constricted pupils
(C) flaccidity of abdominal muscles
(D) normal glomerular filtration rate
(E) normal myocardial contractility
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
The most beneficial effect of continuous positive airway pressure in a newborn with respiratory distress syndrome is
(A) increased functional residual capacity
(B) decreased airway resistance
(C) promotion of surfactant formation
(D) increased alveolar PO2
(E) maintenance of functional closure of the foramen ovale
Reveal Answer
ADVANCED
Pediatric
Measurement of which of the following provides the most reliable information about the severity of bronchospasm?
(A) Diffusing capacity
(B) Expiratory reserve volume
(C) Forced expiratory volume in 1 second
(D) Residual volume
(E) Total lung capacity
Reveal Answer
BASIC
Respiratory & Critical Care
A 67-year-old man undergoes spinal anesthesia with hyperbaric tetracaine 10 mg for transurethral resection of the prostate. At the end of the 50-minute procedure, the level of anesthesia is T6 and blood pressure is 120/70 mmHg. Within two minutes after transfer to a stretcher, the patient has nausea and blood pressure decreases to 76/42 mmHg. Which of the following is the most likely cause of the acute hypotension?
(A) Acute congestive heart failure
(B) Decreased venous return
(C) Dilutional hyponatremia
(D) Progression of sympathetic block
(E) Unrecognized bladder perforation
Reveal Answer
BASIC
Regional & Pain
In an infant, spinal anesthesia to a sensory level of T8 is achieved with tetracaine administered at the L2-3 interspace. Compared with spinal anesthesia to the same sensory level in an adult, this anesthetic is associated with a
(A) greater decrease in blood pressure
(B) higher risk for neurotoxicity
(C) higher risk for systemic toxicity
(D) lower risk for spinal cord injury
(E) shorter duration of action
Reveal Answer
ADVANCED
Pediatric
Regional & Pain
Which of the following is the most important factor affecting the incidence of postoperative pulmonary complications?
(A) Age of the patient
(B) Anesthetic technique
(C) Duration of surgery
(D) Obesity
(E) Site of the operation
Reveal Answer
When compared with a healthy 30-year-old man, which of the following respiratory parameters is decreased in an otherwise healthy 80-year-old man?
(A) Alveolar to arterial oxygen gradient
(B) Lung compliance
(C) Ratio of functional residual capacity to total lung capacity
(D) Resting tidal volume
(E) Ventilatory response to carbon dioxide
Reveal Answer
BASIC
Respiratory & Critical Care
DC shocks of 200 joules applied directly to the heart are likely to
(A) worsen coronary perfusion
(B) prevent postshock arrhythmias
(C) produce myocardial contractile abnormalities
(D) increase myocardial impedance
(E) decrease myocardial temperature
Reveal Answer
ADVANCED
General