10 Random Questions


The accuracy of oxyhemoglobin saturation determined by digital pulse oximetry is affected significantly by each of the following EXCEPT

BASIC Equipment & Physics

Halothane

BASIC Pharmacology & Pharmacokinetics

A patient who has severe pain from unresectable cancer of the base of the tongue is referred for a neurolytic block. A block of which of the following will be effective?

ADVANCED Regional & Pain

The best premedication regimen for a known active narcotic addict would include

BASIC Pharmacology & Pharmacokinetics Regional & Pain

A 90-kg, 59-year-old man with chronic obstructive pulmonary disease is undergoing laparotomy. Mechanical ventilation is being carried out with a fresh gas flow of 2 L/min at a rate of 16/min and tidal volume of 900 ml; I:E ratio is 1:2.5. PaCO2 remains greater than 50 mmHg. Preoperative PaCO2, was normal. Which of the following is the most appropriate next step?

ADVANCED Respiratory & Critical Care General

A patient with end-stage renal disease has prolonged ventilatory depression after administration of morphine. The most likely cause is increased

BASIC Pharmacology & Pharmacokinetics

A child has tachypnea immediately after reintubation for intractable laryngospasm. Oxygen saturation is 78% at an FiO2 of 1.0. A radiograph of the chest taken 15 minutes later is most likely to show

ADVANCED Respiratory & Critical Care Pediatric

During general anesthesia, a patient has the acute onset of atrial fibrillation with rapid ventricular response and hypotension to 50 mmHg systolic. The most appropriate treatment is

BASIC General

A 75-year-old man with a left bundle branch block is undergoing placement of a pulmonary artery catheter through the right internal jugular vein. He becomes pale and his heart rate decreases to 40 bpm when the catheter tip enters the right ventricle. The most likely cause is

ADVANCED Equipment & Physics Cardiac

Epidural administration of corticosteroids is most effective in relieving pain in patients with which of the following conditions?

ADVANCED Regional & Pain