10 Random Questions
Which of the following best reflects findings of inadequate cerebral perfusion during carotid cross clamping?
- (A) Decreased frequency on EEG
- (B) Increased latency of brain stem auditory evoked potentials
- (C) Increased spectral edge frequency
- (D) Jugular bulb oxygen tension of 27 mmHg
- (E) Stump pressure of 50 mmHg
Which of the following statements concerning the cardiovascular effects of intravenous bupivacaine is true?
- (A) Intralipid is effective in treating bupivacaine-induced ventricular arrhythmias
- (B) Cardiovascular toxicity is decreased during pregnancy
- (C) Cardiovascular toxicity occurs at lower blood levels than central nervous system toxicity
- (D) Systemic vascular resistance is unchanged
- (E) The rate of impulse conduction through the heart is increased
Which of the following changes in pulmonary function best explains the more rapid rate of rise of alveolar concentration of volatile anesthetics in pregnant women than in nonpregnant women?
- (A) Decreased functional residual capacity
- (B) Decreased dead space ventilation
- (C) Increased cardiac output
- (D) Increased oxygen consumption
- (E) Increased pulmonary venous admixture
In patients with renal failure, which of the following muscle relaxants has the most prolonged elimination half-life?
- (A) Atracurium
- (B) Pancuronium
- (C) Succinylcholine
- (D) d-Tubocurarine
- (E) Vecuronium
Inhibition of labor by terbutaline causes each of the following maternal side effects EXCEPT
- (A) hyperkalemia
- (B) hypotension
- (C) ventricular dysrhythmias
- (D) hyperglycemia
- (E) pulmonary edema
A normal adult is receiving general anesthesia via a standard circle system and controlled ventilation. Mass spectrometer data are shown. Which event is most compatible with these data?
- (A) Endobronchial intubation
- (B) Hemorrhagic shock
- (C) Incompetent expiratory valve
- (D) Substantial decrease in fresh gas flow
- (E) Venous air embolism
The plasma concentration of equal doses of a local anesthetic is highest when the site of administration is
- (A) axillary brachial plexus
- (B) caudal
- (C) intercostal
- (D) lumbar epidural
- (E) subcutaneous
Which of the following can be used as a sole criterion for brain death?
- (A) Absence of cerebral blood flow
- (B) Absence of doll's eye movements
- (C) Fixed, dilated pupils
- (D) Isoelectric EEG
- (E) Unresponsiveness to all externally applied stimuli
Which of the following statements concerning the use of epidural opioids during labor is true?
- (A) Fentanyl decreases the concentration of epidural bupivacaine required for satisfactory analgesia
- (B) Fentanyl is an effective analgesic for the second stage of labor
- (C) Sufentanil is an unsatisfactory analgesic for labor
- (D) The addition of epinephrine to morphine prolongs the duration of analgesia
- (E) The duration of analgesia with fentanyl is six to ten hours
Ten days after sustaining burns over 40% of his body surface area, a patient requires greater than expected doses of vecuronium for adequate relaxation of skeletal muscle. The primary cause is increased
- (A) plasma protein binding of d-tubocurarine
- (B) metabolism of d-tubocurarine
- (C) number of acetylcholine receptors
- (D) renal clearance of d-tubocurarine
- (E) blood flow to skeletal muscle