10 Random Questions


Block of the superficial cervical plexus is performed at which location?

ADVANCED Regional & Pain

A 70-kg man with ischemic heart disease is undergoing abdominal aortic aneurysm resection. At the time of infrarenal cross-clamping, 0.2-mV ST-segment depression appears on lead V5 of the ECG. Hemodynamic changes occurring at the same time are shown below. Systemic blood pressure 90/50 --> 150/90; Heart rate 80 --> 95; PAp 20/10 --> 45/24; Mean pulmonary artery occlusion pressure (mmHg) 10 --> 23; Cardiac output (L/min) 4.5 --> 3.2. Ischemia would be decreased by restoring the pre-clamp level of each of the following EXCEPT

ADVANCED General

Inhalation induction of anesthesia is more rapid in a 6-month-old infant than in an adult because infants have

ADVANCED Pharmacology & Pharmacokinetics Pediatric

A 30-year-old woman has an abrupt change from sinus to nodal rhythm with unchanged heart rate on ECG during induction of halothane anesthesia. Which of the following is the most likely result of this change?

BASIC Pharmacology & Pharmacokinetics

Compared with an induction dose of thiopental (4 mg/kg), an induction dose of propofol (2.5 mg/kg) produces

BASIC Pharmacology & Pharmacokinetics

Which of the following is the most likely beneficial effect of hyperbaric oxygen therapy in a 24-year-old scuba diver with decompression sickness?

ADVANCED Respiratory & Critical Care

Each of the following is a complication of celiac plexus block with 0.5% lidocaine 40 ml EXCEPT

ADVANCED Regional & Pain

If a patient with excessive bleeding during exploratory laparotomy has a normal activated clotting time, the LEAST likely cause of the bleeding is

BASIC General

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 will result in the largest change in oxygen content?

BASIC General