10 Random Questions
Which of the following increases during infusion of epinephrine?
- (A) Glycogen synthesis
- (B) Intracellular glucose concentration
- (C) Intracellular potassium concentration
- (D) Lipogenesis
- (E) Protein synthesis
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
The graphs shown illustrate various respiratory patterns in a patient who is breathing spontaneously with continuous positive airway pressure. Which of the following patterns is associated with the LEAST work of breathing?
- (A) 1
- (B) 2
- (C) 3
- (D) All patterns are associated with equal work
- (E) There is not enough information to answer the question
Compared with fentanyl, alfentanil is characterized by
- (A) greater volume of distribution
- (B) greater lipid solubility
- (C) less protein binding
- (D) faster redistribution
- (E) longer terminal elimination phase
An oxygen-driven anesthesia ventilator with a bellows that ascends during exhalation develops a small hole in the bellows. Which of the following is the most likely effect?
- (A) Alveolar hyperinflation
- (B) Decreased inspiratory flow rate
- (C) Decreased inspired oxygen concentration
- (D) Increased concentration of inhalational agent
- (E) Rebreathing of exhaled gases
Immediately after a retrobulbar block for cataract surgery, the eye grossly protrudes and the patient has the sensation of pressure in the eye. The most appropriate initial intervention is
- (A) hyperventilation
- (B) surgical drainage of a hematoma
- (C) manual compression of the globe
- (D) administration of atropine intravenously
- (E) administration of mannitol intravenously
Delirium produced by high doses of atropine can be reversed by intravenous injection of
- (A) diphenhydramine
- (B) flumazenil
- (C) naloxone
- (D) neostigmine
- (E) physostigmine
A 62-year-old woman with obesity and type II diabetes mellitus is scheduled to undergo vitrectomy of the right eye. Five minutes after retrobulbar injection with 0.75% bupivacaine 4 ml and intravenous administration of fentanyl 50 ju-g and midazolam 1 mg, she is apneic and unresponsive. Which of the following is the most likely cause?
- (A) Fentanyl-midazolam interaction
- (B) Hypoglycemia
- (C) Intravenous bupivacaine
- (D) Retrobulbar hematoma
- (E) Subarachnoid bupivacaine
A 40-year-old man is scheduled for emergency laparotomy for bowel obstruction. He is nauseated but has not vomited. Which of the following drugs administered intravenously preoperatively will decrease the risk for pulmonary aspiration?
- (A) Atropine
- (B) Droperidol
- (C) Metoclopramide
- (D) Ranitidine
- (E) None of the above
Compared with a patient who is breathing spontaneously, a patient in the supine position receiving controlled positive-pressure ventilation will most likely have which of the following findings?
- (A) Decreased pulmonary vascular resistance
- (B) Decreased ratio of dead space to tidal volume
- (C) Increased ventilation of nondependent alveoli
- (D) Increased perfusion of nondependent alveoli
- (E) Improved matching of ventilation to perfusion