10 Random Questions
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
Which of the following statements concerning flumazenil is true?
(A) Hepatic clearance is low
(B) It binds irreversibly with the benzodiazepine receptor
(C) It causes hypertension and tachycardia
(D) It has a shorter duration of action than midazolam
(E) It reverses opioid-induced respiratory depression
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Which of the following will have the LEAST effect on the shape of the autoregulatory curve for cerebral blood flow?
(A) Isoflurane
(B) Nitroprusside
(C) Hypercarbia
(D) Essential hypertension
(E) Cerebral infarction
Reveal Answer
In patients who have undergone cardiopulmonary bypass, administration of milrinone is most likely to result in an increase in which of the following?
(A) Arterial blood pressure
(B) Heart rate
(C) Pulmonary capillary wedge pressure
(D) Stroke volume
(E) Systemic vascular resistance
Reveal Answer
ADVANCED
Cardiac
Which of the following is a side effect of beta-adrenergic blockade?
(A) Cerebral vasodilation
(B) Decreased left ventricular filling pressures
(C) Hypokalemia
(D) Increased airway resistance
(E) Uterine relaxation
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
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) higher risk for neurotoxicity
(B) higher risk for systemic toxicity
(C) lower risk for spinal cord injury
(D) more significant decrease in blood pressure
(E) shorter duration of action
Reveal Answer
ADVANCED
Pediatric
Regional & Pain
A 26-year-old patient with multiple trauma is admitted to the intensive care unit postoperatively. The early development of polyuria, hypotension, low urine sodium excretion, high serum osmolality, and normal serum creatinine concentration is best explained by
(A) adrenal insufficiency
(B) fluoride-induced high-output renal failure
(C) inappropriate ADH secretion
(D) intraoperative fluid overload
(E) posterior pituitary insufficiency
Reveal Answer
ADVANCED
General
In a normally functioning circle anesthesia system, if the length of the inspiratory and expiratory hose is doubled, the mechanical dead space will be
(A) halved
(B) unchanged
(C) doubled
(D) quadrupled
(E) dependent on compression volume
Reveal Answer
BASIC
Equipment & Physics
Each of the following findings is characteristic of restrictive lung disease EXCEPT
(A) decreased elasticity of the lungs
(B) decreased FEV1/FVC ratio
(C) decreased inspiratory reserve volume
(D) increased work of breathing
(E) normal anatomic dead space
Reveal Answer
BASIC
Respiratory & Critical Care
A 60-kg, 70-year-old man requires open reduction and internal fixation of an intertrochanteric fracture sustained 24 hours ago. Serum creatinine concentration is 1 mg/dl and blood urea nitrogen concentration is 40 mg/dl. The most likely cause of these findings is
(A) acute tubular necrosis
(B) chronic renal insufficiency
(C) dehydration
(D) obstruction of the bladder outlet
(E) recent gastrointestinal hemorrhage
Reveal Answer
BASIC
General