10 Random Questions
The tracing indicates that the pacemaker generator is
- (A) malfunctioning
- (B) VVT sensing and capturing normally
- (C) VOO sensing and capturing normally
- (D) DVI sensing and capturing normally
- (E) VVI sensing and capturing normally
Which of the following statements concerning diazepam is true?
- (A) Absorption is more predictable after intramuscular administration than after oral administration
- (B) It produces a shift to the left of the carbon dioxide ventilatory response curve
- (C) Rebound drowsiness is caused by a metabolite
- (D) The degree of CNS depression is independent of serum albumin concentration
- (E) The extent of amnesia is proportional to the degree of sedation
In a patient with asthma, which of the following drugs used to treat supraventricular tachycardia is LEAST likely to induce bronchospasm?
- (A) Adenosine
- (B) Edrophonium
- (C) Esmolol
- (D) Propranolol
- (E) Verapamil
An arterial blood sample is obtained from a patient undergoing hypothermic cardiopulmonary bypass at 28 C. Analysis at 37 C shows a pH of 7.40 and PaCO2 of 40 mmHg. Which of the following values are most likely if the analysis is corrected to 28 C?
- (A) pH = 7.40; PaCO2 = 40
- (B) pH > 7.40; PaCO2 < 40
- (C) pH > 7.40; PaCO2 > 40
- (D) pH < 7.40; PaCO2 < 40
- (E) pH < 7.40; PaCO2 > 40
Following the administration of 4 MAC hours of enflurane, peak serum concentrations of inorganic fluoride are highest in patients who
- (A) are physically dependent on barbiturates
- (B) are taking isoniazid chronically to suppress tuberculosis
- (C) are epileptics taking phenytoin chronically
- (D) are obese
- (E) consume alcohol regularly
During halothane anesthesia with spontaneous ventilation, the most reliable sign of malignant hyperthermia is
- (A) hypertension
- (B) increased temperature
- (C) increased minute ventilation
- (D) muscle rigidity
- (E) tachycardia
An obese patient and a lean patient receive halothane for the same duration and at the same inspired tension. Postoperatively, the obese patient would demonstrate
- (A) higher serum creatinine concentration
- (B) higher serum fluoride concentration
- (C) lower eosinophil count
- (D) lower serum alkaline phosphate activity
- (E) lower serum bromide concentration
Which of the following is an effect of hypothermia in neonates?
- (A) Decreased duration of neuromuscular blockade
- (B) Increased narcotic requirements
- (C) Increased pulmonary vascular resistance
- (D) Metabolic alkalosis
- (E) Shivering
Following a right lower lobectomy, a patient develops a bronchopleural fistula and becomes hypoxic. He is orally intubated and mechanically ventilated with pure oxygen. PaO2 is 65 mmHg, PaCO2 is 70 mmHg, and pH is 7.25. Which of the following will produce the most favorable change in the blood gases?
- (A) Increasing ventilatory frequency
- (B) Increasing suction on the chest tube
- (C) Applying 10 cmH2O positive end-expiratory pressure
- (D) Using a double-lumen tube for differential ventilation
- (E) Starting negative-pressure ventilation
The recommended agent for decontamination of anesthetic equipment splattered with blood containing HIV is
- (A) household bleach
- (B) hydrogen peroxide
- (C) iodine solution
- (D) isopropyl alcohol
- (E) Lysol solution