10 Random Questions


A 52-year-old man develops oliguria 24 hours after left hemicolectomy. Urinalysis shows a specific gravity of 1.028, an osmolality of 650 mOsm/L, and a sodium concentration of 10 mEq/L. Which of the following is the most likely diagnosis?


At the end of an anesthetic in which a nondepolarizing muscle relaxant was administered, the least number of receptors are blocked

BASIC Pharmacology & Pharmacokinetics

A 23-year-old man who is receiving his first anesthetic has not resumed spontaneous ventilation two hours after receiving succinylcholine. The train-of-four monitor shows no twitch response. Which of the following is the most likely cholinesterase genotype in this patient?

ADVANCED Pharmacology & Pharmacokinetics General

In an infant, spinal anesthesia to a sensory level of T8 is achieved with tetracaine administered at the L2-3 interspace. Compared with spinal anesthesia to the same sensory level in an adult, this anesthetic is associated with a

ADVANCED Pediatric Regional & Pain

When compared with a healthy 30-year-old man, which of the following respiratory parameters is decreased in an otherwise healthy 80-year-old man?

BASIC Respiratory & Critical Care

Following antagonism of a nondepolarizing muscle relaxant with neostigmine, twitch height is normal. To achieve this effect, the percentage of the acetylcholine receptor pool that must be free of muscle relaxant is

BASIC Equipment & Physics Pharmacology & Pharmacokinetics

After termination of an inhalation anesthetic, patient-controlled analgesia will

ADVANCED Regional & Pain

When evaluating a screening test, which of the following is the most appropriate term for the proportion of patients with a disease who have a positive test result?

BASIC General

A patient has palpitations, flushing, and light-headedness after gingival injection of a local anesthetic. This reaction is most likely caused by

BASIC Pharmacology & Pharmacokinetics

An otherwise healthy 70-year-old man receives 12 units of packed red blood cells for persistent diffuse bleeding during suprapubic prostatectomy. Hemoglobin concentration is 11 g/dL, platelet count is 55,000/mm3, plasma fibrinogen concentration is 180 mg/dL, protime is 14 sec, and partial thromboplastin time is 35 sec. The most appropriate therapy is administration of

ADVANCED Transfusions & Fluids