10 Random Questions


A 48-year-old woman underwent a posterior fossa craniotomy in the sitting position. Monitoring included precordial Doppler, arterial blood pressure, central venous pressure (CVP), and urine output. Furosemide was used intraopera-tively for cerebral decompression, and the operation was uneventful. In the recovery room, she was awake with stable vital signs when the CVP suddenly increased from 6 to 25 mmHg without any change in blood pressure. Shortly thereafter, premature ventricular contractions are noted. After administering lidocaine 1 mg/kg intravenously, the most appropriate action is to

ADVANCED Neuro

Which of the following is the most reliable indicator of antagonism of nondepolarizing neuromuscular block sufficient for airway protection?

BASIC Pharmacology & Pharmacokinetics

A patient with moderate hypothyroidism and unstable angina requires urgent coronary artery bypass grafting. Which of the following is most appropriate before proceeding with the operation?

ADVANCED General

Which of the following statements concerning relationships among alveolar pressure, volume, and surface tension is true?

BASIC Respiratory & Critical Care

At equipotent doses, which of the following opioids is most likely to migrate cephalad in cerebrospinal fluid after epidural administration?

BASIC Pharmacology & Pharmacokinetics Regional & Pain

A mechanically ventilated newborn infant is undergoing gastroschisis repair during halothane anesthesia. Based on the right radial artery catheter tracing shown, which of the following is the most appropriate conclusion?

ADVANCED Pediatric

The primary purpose of denitrogenation prior to anesthetic induction is to

BASIC Respiratory & Critical Care General

Which of the following statements concerning fetal hemoglobin is true?

ADVANCED Pediatric

A 27-month-old, 14-kg infant with intestinal obstruction is anesthetized with nitrous oxide at 1 L/min, oxygen at 0.4 L/min, and halothane at 0.8% using a Bain circuit. Ventilation is controlled at a rate of 30/min. The child's temperature is 39°C, and the PaCO2 is 65 mmHg. Which of the following is most likely?

BASIC Equipment & Physics Pediatric

A 25-year-old woman is admitted to the hospital in the early stages of labor at term. Initial hematocrit is 33%. Which of the following is the most likely cause of the hematocrit value?

ADVANCED OB