10 Random Questions
Compared with blood anticoagulated with CPD, blood stored in CPDA-1 has
- (A) better preservation of 2,3-DPG concentration
- (B) better preservation of ATP concentration in erythrocytes
- (C) shorter erythrocyte survival
- (D) shorter shelf life
- (E) decreased platelet aggregation
When used with morphine for premedication, which of the following drugs is most likely to cause sedation?
- (A) Atropine
- (B) Cephalothin
- (C) Clonidine
- (D) Metoclopramide
- (E) Ranitidine
Which of the following is an effect of nitrous oxide?
- (A) Decreased pulmonary vascular resistance
- (B) Depression of uterine contractility
- (C) Inhibition of methionine synthetase
- (D) Stimulation of lymphocyte chemotaxis
- (E) Stimulation of myocardial contractility
Which of the following perioperative interventions decreases the risk for renal insufficiency in patients undergoing aortic aneurysm repair?
- (A) Administration of furosemide
- (B) Administration of mannitol
- (C) Administration of renal-dose dopamine
- (D) Epidural anesthesia
- (E) Preoperative volume expansion
As part of a preoperative evaluation, a patient had a thallium scan showing a "cold spot" over the left ventricle that occurs with moderate exercise and disappears at rest. This most likely indicates
- (A) moderate-sized aneurysm of the left ventricle
- (B) acute myocardial ischemia
- (C) recent myocardial infarction
- (D) old myocardial infarction
- (E) Prinzmetal's variant angina
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
Which of the following is a respiratory effect of 1 MAC halothane?
- (A) Decreased contribution of abdominal muscles to exhalation
- (B) Decreased contribution of the chest wall to ventilation
- (C) Decreased respiratory rate
- (D) Decreased ratio of dead space to tidal volume
- (E) Increased tidal volume
Which of the following is a cardiorespiratory effect of epidural block to a T4 sensory level?
- (A) Decreased expiratory reserve volume
- (B) Decreased tidal volume
- (C) Increased circulating catecholamine concentrations
- (D) Increased heart rate
- (E) Unchanged vital capacity
Which of the following is the most likely adverse effect of prolonged intravenous administration of nitroglycerin?
- (A) Cyanmethemoglobinemia
- (B) Hemolysis
- (C) Methemoglobinemia
- (D) Neutropenia
- (E) Thrombocytopenia
Failure of contrast material to enter the duodenum following intraoperative cholangiography is most likely related to administration of
- (A) butorphanol
- (B) fentanyl
- (C) halothane
- (D) nalbuphine
- (E) naloxone