10 Random Questions
Each of the following is an adverse effect of ritodrine used for suppression of labor EXCEPT
- (A) dysrhythmias
- (B) hyperglycemia
- (C) hyperkalemia
- (D) hypotension
- (E) pulmonary edema
A patient has hoarseness after undergoing surgery involving the aortic arch. The most likely cause is an injury to which of the following nerves?
- (A) Glossopharyngeal
- (B) Left recurrent laryngeal
- (C) Right recurrent laryngeal
- (D) Left superior laryngeal
- (E) Right superior laryngeal
Which of the following statements concerning relationships among alveolar pressure, volume, and surface tension is true?
- (A) Surface tension of surfactant decreases as alveolar volume decreases
- (B) Surface tensions of water and of surfactant behave similarly as volume decreases
- (C) Changes in alveolar surface tension with volume are the same during expansion as during contraction
- (D) Pressure in the alveolus is inversely related to surface tension
- (E) Pressure in the alveolus is directly related to alveolar radius
The fetal heart rate and uterine contraction tracings shown are most consistent with
- (A) fetal acidosis
- (B) fetal cerebral hemorrhage
- (C) fetal head compression
- (D) fetal hypoxia
- (E) uteroplacental insufficiency
Which of the following interventions is most effective in preventing neurologic injury resulting from global cerebral ischemia?
- (A) Induction of barbiturate coma prior to ischemia
- (B) Maintenance of serum glucose concentration greater than 200 mg/dl prior to ischemia
- (C) Induction of hypothermia to a core temperature of 15 degrees C prior to ischemia
- (D) Maintenance of PaCO2 less than 25 mmHg following ischemia
- (E) Prevention of systemic hypertension following ischemia
A patient undergoes differential spinal block for evaluation of persistent foot pain. If the pain returns coincident with a decrease in skin temperature, which of the following is the most appropriate conclusion?
- (A) A somatic origin is ruled out
- (B) The patient has causalgia
- (C) The patient has peripheral vascular disease
- (D) The pain is caused by central neuropathy
- (E) Lumbar sympathetic blocks are indicated
A 70-year-old patient has absence of the left radial pulse one month after repair of an aortic aneurysm. Arterial pressure was monitored perioperatively with a 20-gauge left radial artery catheter. Which of the following statements concerning this complication is true?
- (A) A preoperative Allen's test would have predicted this complication
- (B) Stellate ganglion block should be performed
- (C) This complication would have been less likely with an 18-gauge catheter
- (D) This patient has poor collateral circulation in the hand
- (E) The pulse will likely return
A direct 5-joule shock is unsuccessful in converting ventricular fibrillation occurring after discontinuation of cardiopulmonary bypass. The most appropriate next step is to
- (A) administer calcium chloride
- (B) administer bretylium
- (C) administer regular insulin
- (D) administer sodium bicarbonate
- (E) increase shock energy
During total cardiopulmonary bypass, metabolic acidosis and decreasing mixed venous oxygen saturation are noted. The most likely cause is
- (A) hypothermia
- (B) hypoperfusion
- (C) hypocarbia
- (D) rewarming
- (E) light anesthesia
Normal pregnancy is associated with a decrease in each of the following EXCEPT
- (A) expiratory reserve volume
- (B) FEV1/FVC ratio
- (C) functional residual capacity
- (D) thoracic compliance
- (E) vital capacity