10 Random Questions


Each of the following statements about the blood supply of the spinal cord is true EXCEPT:

BASIC Neuro

During anesthesia, the ventilation/perfusion ratios change

BASIC Respiratory & Critical Care

During laser microsurgery of the larynx using an endotracheal tube, a fire occurs in the airway. Which of the following is the most appropriate initial management?

BASIC Equipment & Physics 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

The tracing indicates that the pacemaker generator is

ADVANCED Cardiac

After inflation of both the tracheal and endobronchial cuffs of a left-sided double-lumen tube, the following are noted on auscultation of the chest: Left lumen clamped --> Breath sounds absent bilaterally; Right lumen clamped --> Breath sounds present on left only; Both lumens open --> Breath sounds present on left only. The most appropriate action is to

BASIC Equipment & Physics

An infant becomes cyanotic and hypotensive after ventilatory pressures increase to 45 cm H2O during closure of the abdominal wall at the end of a gastroschisis repair. The most appropriate next step is to

ADVANCED Pediatric

Unilateral or bilateral diaphragmatic paralysis is a complication of each of the following EXCEPT

ADVANCED General

A 73-year-old woman with a preoperative serum creatinine concentration of 2.1 mg/dl develops oliguria during enflurane anesthesia. Urine sodium concentration is 10 mEq/L and urine osmolality is 450 mOsm/L. The most likely cause of these findings is

BASIC Pharmacology & Pharmacokinetics

Five minutes after a stellate ganglion block is performed, a patient becomes restless, then apneic. The most likely cause is

ADVANCED Regional & Pain