10 Random Questions
Desflurane at a stable alveolar concentration of 7%
- (A) causes bradycardia
- (B) decreases cerebrovascular resistance
- (C) degrades in soda lime
- (D) increases systemic vascular resistance
- (E) stimulates the respiratory centers
Having received excessive intraoperative blood replacement, a patient anesthetized with fentanyl, diazepam, and nitrous oxide develops acute pulmonary edema. The drug most likely to have an immediate beneficial effect is
- (A) nitroglycerin
- (B) nitroprusside
- (C) digoxin
- (D) isoflurane
- (E) mannitol
You are called to anesthetize a patient for an emergency pericardial window for a large pericardial effusion. Which of the following drugs is most appropriate for initiation of anesthesia?
- (A) Alfentanil
- (B) Ketamine
- (C) Midazolam
- (D) Propofol
- (E) Thiopental
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
A 64-year-old man is scheduled to have an elective right colon resection under nitrous oxide, oxygen, enflurane anesthesia. Following a myocardial infarction two years ago, a programmable VVI pacemaker was inserted for complete heart block. A pre induction rhythm strip is shown. Based on this EKG finding, the most appropriate action is to
- (A) proceed with induction of anesthesia
- (B) convert the pacemaker to the fixed rate mode
- (C) reprogram the pacemaker to increase R-wave sensitivity
- (D) increase the pacemaker current outpu
- (E) insert a temporary atrioventricular sequential pacemaker
A woman at 39 weeks' gestation has been in labor for 12 hours. She has had nausea and vomiting for the past eight hours. Maternal arterial blood gas values are PaO1 85 mmHg, PaCO2 31 mmHg, and pH 7.50. Which of the following is the most likely cause of fetal distress occurring at this time?
- (A) Hypocarbia-induced placental ischemia
- (B) Impaired fetal oxyhemoglobin dissociation
- (C) Shift to the left of the maternal oxyhemoglobin dissociation curve
- (D) Maternal hypovolemia
- (E) Maternal hypoxemia
A 3-day-old infant is comatose 18 hours after surgical correction of transposition of the great vessels. Tracheal suctioning produces only a tachycardic response. Anesthesia included midazolam 0.5 mg/kg, fentanyl 60 mcg/kg, and pancuronium 0.3 mg/kg. Which of the following is the most appropriate first step in evaluation of this infant?
- (A) Administration of flumazenil
- (B) Administration of naloxone
- (C) Train-of-four assessment
- (D) CT scan of the head
- (E) EEG
The use of droperidol as a preanesthetic medication has been associated with each of the following EXCEPT
- (A) acute anxiety
- (B) anterograde amnesia
- (C) hypotension
- (D) extrapyramidal signs
- (E) catalepsy
Following induction of anesthesia with sufentanil and pancuronium, a patient with left main coronary artery disease has a decrease in blood pressure from 110/70 to 60/40 mmHg. There is no change in heart rate or ECG. The most appropriate management of the hypotension is administration of
- (A) calcium chloride
- (B) ephedrine
- (C) epinephrine
- (D) isoproterenol
- (E) phenylephrine
During postoperative indirect laryngoscopy, the vocal cords appear symmetric during quiet breathing and approximate to the left of midline during phonation. The most likely cause is
- (A) pure abductor paralysis of the left cord
- (B) pure abductor paralysis of the right cord
- (C) abductor and adductor paralysis of the left cord
- (D) abductor and adductor paralysis of the right cord
- (E) adductor paralysis of both cords