10 Random Questions
Intraocular pressure is
- (A) decreased by glycopyrrolate
- (B) increased by hyperventilation
- (C) decreased by halothane
- (D) increased by nondepolarizing muscle relaxants
- (E) increased by phenylephrine eye drops
Spinal anesthesia at a T6 sensory level is most likely to improve cardiac output in patients with
- (A) aortic stenosis
- (B) asymmetric septal hypertrophy (IHSS)
- (C) chronic constrictive pericarditis
- (D) cor pulmonale
- (E) mitral regurgitation
A woman has weakness of the right quadriceps and a decreased knee jerk reflex on the right one day after forceps delivery under epidural anesthesia. The most likely cause is
- (A) epidural hematoma
- (B) intrapelvic nerve trauma
- (C) lithotomy positioning
- (D) reaction to the preservative in the anesthetic solution
- (E) trauma from the epidural needle
If the low-pressure alarm of an anesthesia circuit is broken, which of the following monitors will provide the earliest indication of a disconnected ventilator hose?
- (A) Fail-safe system
- (B) Infrared capnograph
- (C) Nitrogen analyzer
- (D) Oxygen analyzer
- (E) Pulse oximeter
Which of the following is the most likely effect of administration of magnesium sulfate in a patient with preeclampsia?
- (A) Decreased motor end-plate sensitivity to acetylcholine
- (B) Decreased uteroplacental blood flow
- (C) Increased platelet aggregation
- (D) Increased systemic vascular resistance
- (E) Inhibited acetylcholinesterase
Heparin-induced thrombocytopenia
- (A) does not occur with porcine mucosal heparin
- (B) is caused by direct suppression of platelet production
- (C) is immunologically mediated
- (D) is diagnosed by peripheral blood smear
- (E) occurs only with larger intravenous doses of heparin
Immediately after sustaining severe head injury, a 20-year-old man has a blood pressure of 150/90 mmHg and an intracranial pressure of 35 mmHg. After one hour of thiopental infusion, blood pressure is 105/60 mmHg, intracranial pres sure is 20 mmHg, central venous pressure is 5 mmHg, and temperature is 36°C. The EEG shows slow-wave activity. The most appropriate next step is administration of
- (A) additional thiopental
- (B) a corticosteroid
- (C) furosemide
- (D) nimodipine
- (E) phenylephrine
A patient develops jaundice one week after undergoing laparoscopic cholecystectomy during halothane anesthesia. Laboratory studies show an increased serum alkaline phosphatase concentration, a mildly increased serum aspartate aminotransferase concentration, and a markedly increased conjugated bilirubin fraction. Which of the following is the most likely diagnosis?
- (A) Biliary obstruction
- (B) Gilbert's disease
- (C) Halothane-associated hepatitis
- (D) Hematoma resorption
- (E) Infectious hepatitis
During emergency laparotomy, a patient who has been taking a monoamine oxidase inhibitor for six months develops hypotension despite adequate fluid therapy. The most appropriate management is administration of
- (A) amrinone
- (B) ephedrine
- (C) epinephrine
- (D) isoproterenol
- (E) phenylephrine
The Mapleson A system (Magill circuit) illustrated
- (A) is functionally equivalent to the Bain circuit
- (B) prevents rebreathing more effectively during controlled ventilation than during spontaneous ventilation
- (C) provides better humidification than the Mapleson D system
- (D) requires a fresh gas flow equal to minute ventilation to prevent rebreathing during spontaneous ventilation
- (E) results in less rebreathing during controlled ventilation than the Mapleson C system