10 Random Questions
In a patient who is breathing spontaneously, the work of breathing increases with each of the following EXCEPT
- (A) decreased compliance
- (B) decreased vital capacity
- (C) increased carbon dioxide production
- (D) increased respiratory rate
- (E) increased dead space
The preanesthetic ECG trace (lead II) shown from a 32-year-old woman suggests
- (A) potential for tachyarrhythmia
- (B) need for preanesthetic atropine
- (C) myocardial ischemia
- (D) left bundle branch block
- (E) right ventricular hypertrophy
A 65-year-old patient with hypertrophic cardiomyopathy has chest pain prior to induction of anesthesia. Pulse is 80 bpm and blood pressure is 130/80 mmHg. The ECG (V5) shows sinus rhythm and new ST-segment depression. The most appropriate management is administration of
- (A) furosemide
- (B) metoprolol
- (C) morphine
- (D) nifedipine
- (E) nitroglycerin
Which of the following must be considered during perioperative management of a patient on long-term lithium therapy?
- (A) Intravenous fluids should include sodium
- (B) Therapy should be discontinued for 14 days prior to anesthesia
- (C) The requirement for succinylcholine is increased
- (D) The requirement for volatile anesthetics is increased
- (E) Urine output should be maintained with furosemide
A 75-year-old man is confused, restless and disoriented two days after an aortic aneurysm repair. Serum sodium concentration is 112 mEq/L, serum osmolality is low, and urine is hypertonic. The most appropriate treatment is
- (A) restriction of fluid intake
- (B) administration of isotonic saline solution
- (C) administration of hypertonic (3%) saline solution
- (D) administration of spironolactone
- (E) infusion of mannitol 25 g
Metoclopramide
- (A) decreases gastric acid secretion
- (B) decreases gastroesophageal sphincter tone
- (C) is contraindicated in patients with Parkinson's disease
- (D) is most effective when administered in combination with atropine
- (E) requires an intact vagus nerve for gastrointestinal effects
Which of the following antihypertensive drugs is most likely to cause bradycardia?
- (A) Captopril
- (B) Clonidine
- (C) Hydralazine
- (D) Nifedipine
- (E) Phenoxybenzamine
A newly developed volatile anesthetic has a MAC of 10% in oxygen for adults. Which of the following statements concerning this anesthetic is true?
- (A) The expected MAC of this drug in combination with 60% nitrous oxide is 7.5%
- (B) The dose of this drug required to anesthetize a patient with acute amphetamine intoxication is less than the dose required for a normal patient
- (C) The potency of this drug is 25% of a drug with a MAC of 2.5%
- (D) The dose of this drug required to suppress the hormonal response to surgical incision is less than the MAC value
- (E) The MAC of this drug is decreased by metabolic alkalosis
In an unpremedicated, spontaneously breathing patient, an alveolar halothane concentration of 0.74% in oxygen is consistently associated with
- (A) absence of overt response to skin incision
- (B) constricted pupils
- (C) flaccidity of abdominal muscles
- (D) normal glomerular filtration rate
- (E) normal myocardial contractility
Which of the following findings on the left is most likely to be associated with an increased risk of complications with cannulation of the left internal jugular vein compared with cannulation of the right internal jugular vein?
- (A) Longer recurrent laryngeal nerve
- (B) Lower location of the cupola of the pleura
- (C) More acute angle between the internal jugular and innominate veins
- (D) More anterior location of the phrenic nerve
- (E) Presence of the thoracic duct