10 Random Questions
Each of the following would be expected after preoperative oral administration of clonidine EXCEPT
- (A) bradycardia in the absence of surgical stimulation
- (B) decreased requirement for inhalational anesthetics
- (C) decreased requirement for opioid anesthetics
- (D) decreased response to exogenous epinephrine
- (E) sedation
In a patient with peripheral vascular disease, the most likely result of lumbar sympathetic block is
- (A) increased blood flow to skin and decreased blood flow to muscle
- (B) increased blood flow to skin and unchanged blood flow to muscle
- (C) increased blood flow to skin and muscle
- (D) decreased blood flow to skin and muscle
- (E) decreased blood flow to skin and unchanged blood flow to muscle
The hemodynamic changes shown would most likely result from infusion of
- (A) dopamine
- (B) epinepherine
- (C) dobutamine
- (D) norepinepherine
- (E) isoproterenol
The most effective treatment of severe carbon monoxide poisoning in a 2-year-old child is
- (A) intravenous administration of methylene blue
- (B) intravenous administration of thiocyanate
- (C) intravenous administration of thiosulfate
- (D) exchange transfusion
- (E) hyperbaric oxygenation
Which of the following is a manifestation of preeclampsia?
- (A) Hypovolemia
- (B) Increased colloid osmotic pressure
- (C) Natriuresis
- (D) Resistance to catecholamines
- (E) Thrombocytosis
Which of the following best explains why neonates are at greater risk than adults for hypothermia during surgical procedures?
- (A) Greater body surface area relative to body mass
- (B) Greater cutaneous vasodilation at equal MAC concentrations of volatile anesthetics
- (C) Greater dependence on shivering to produce heat
- (D) Inability to increase metabolic rate
- (E) Less insulation by adipose tissue
Compared with intermittent positive pressure ventilation (IPPV), intermittent mandatory ventilation (IMV)
- (A) better maintains cardiac output
- (B) provides less than full mechanical ventilatory support
- (C) requires a greater level of sedation
- (D) requires a higher FlO2
- (E) requires a lower inspiratory flow rate
The concentration of bupivacaine is higher in maternal blood than in fetal blood because
- (A) bupivacaine is metabolized in the placenta
- (B) maternal blood has a higher pH
- (C) maternal blood has greater plasma protein binding
- (D) maternal hemoglobin has a higher affinity for bupivacaine
- (E) placental transfer of bupivacaine is limited
Which of the following opioids is vagolytic?
- (A) Morphine
- (B) Meperidine
- (C) Sufentanil
- (D) Nalbuphine
- (E) Alfentanil
A woman is undergoing a repeat cesarean delivery at term following a normal pregnancy. Anesthesia consists of thiopental 250 mg, succinylcholine infusion (180 mg in 20 minutes), nitrous oxide and oxygen (7:3 L/min) until delivery. Twenty minutes after the incision a floppy newborn with a 1-minute Apgar score of 5 is delivered. The most likely explanation for the infant's condition is
- (A) high serum thiopental concentration
- (B) high serum succinylcholine concentration
- (C) high serum nitrous oxide concentration
- (D) high serum glucose concentration
- (E) uterine hypoperfusion