10 Random Questions
A 50-year-old woman develops stridor 10 hours after undergoing thyroidectomy. The most appropriate management is administration of which of the following drugs?
- (A) Albuterol
- (B) Calcium chloride
- (C) Ipratropium bromide
- (D) Racemic epinephrine
- (E) Triiodothyronine
A multi-orifices right heart catheter is being positioned by EKG control prior to sitting craniotomy. The EKG tracing is obtained between the distal tip of the catheter and the right arm lead. The most appropriate next step is to
- (A) leave the catheter in place
- (B) advance the catheter 2 to 3 cm
- (C) withdraw the catheter 2 to 3 cm
- (D) remove the catheter completely
- (E) change polarity of the EKG
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
A 40-year-old man who is scheduled to undergo repair of a tendon laceration of the left hand has complete anesthesia in the median, radial, and ulnar nerve distributions after supraclavicular block. Two hours of tourniquet inflation are required for completion of the procedure. The most appropriate next step is an additional block of which of the following?
- (A) Axillary nerve
- (B) Intercostobrachial nerve
- (C) Lateral antebrachial cutaneous nerve
- (D) Musculocutaneous nerve
- (E) Stellate ganglion
The induction dose of thiopental should be decreased in each of the following situations EXCEPT
- (A) age greater than 70 years
- (B) cardiogenic shock
- (C) decreased hepatic blood flow
- (D) hypoalbuminemia
- (E) hypothyroidism
A 50-year-old man who takes aspirin and nifedipine is scheduled for thoracotomy with one-lung ventilation. Which of the following is associated with the greatest risk for intraoperative hypoxemia?
- (A) Preoperative withdrawal of nifedipine therapy
- (B) Intraoperative mild respiratory acidosis
- (C) Intraoperative administration of isoflurane
- (D) Intraoperative administration of nitroglycerin
- (E) Intraoperative thoracic epidural morphine
What is the expected mixed venous oxygen tension, in mmHg, in a normal adult after breathing 100% oxygen for 10 minutes?
- (A) 573
- (B) 563
- (C) 150
- (D) 95
- (E) 45
The increased resistance of severely burned patients to pancuronium is primarily due to
- (A) enhanced urinary excretion of pancuronium
- (B) decreased number of presynaptic cholinergic receptors
- (C) increased number of postsynaptic cholinergic receptors
- (D) increased rate of metabolism of pancuronium
- (E) increased volume of distribution of pancuronium
During induced hypotension for clipping of a cerebral aneurysm in a 20-degree head-up position, the arterial pressure transducer should be zero referenced at which level?
- (A) External auditory meatus
- (B) Midaxillary line at the fifth intercostal space
- (C) Sternal notch
- (D) Thyroid cartilage
- (E) Top of the cranium
The condition LEAST likely to be associated with sustained pain relief following a nerve block is
- (A) causalgia
- (B) myofascial pain
- (C) diabetic neuropathy
- (D) acute herpes zoster
- (E) reflex sympathetic dystrophy