10 Random Questions

In a patient with adult respiratory distress syndrome who is being mechanically ventilated, which of the following findings indicates the most severe disease?

ADVANCED Respiratory & Critical Care

A patient is hyperventilated to a PaC02 of 20 mmHg. Which of the following physiologic parameters is most likely to be increased?

Cardiac output measured by thermodilution with a pulmonary artery catheter most accurately reflects systemic blood flow in a patient with

ADVANCED Equipment & Physics Cardiac

The EEG begins to flatten during carotid endarterectomy when regional cerebral blood flow (in ml/min/100 g brain) decreases to

ADVANCED Neuro

When used with morphine for premedication, which of the following drugs is most likely to cause sedation?

BASIC Pharmacology & Pharmacokinetics

Each of the following decreases hepatic blood flow EXCEPT

BASIC Pharmacology & Pharmacokinetics General

The induction dose of thiopental should be decreased in each of the following situations EXCEPT

ADVANCED Pharmacology & Pharmacokinetics

A 68-year-old man who is scheduled for outpatient cystoscopy has non-insulin-dependent diabetes mellitus controlled with glipizide (Glucatrol) 5 mg twice daily. He has had nothing to eat since awakening this morning and has not taken glipizide today. His blood glucose level is 185 mg/dl. Before proceeding, the most appropriate management is to administer

BASIC Pharmacology & Pharmacokinetics General

Each of the following factors may lead to erroneous readings using pulse oximetry EXCEPT

BASIC Equipment & Physics

A healthy 30-year-old woman is undergoing laparoscopy with carbon dioxide insufflation under nitrous oxide 50% in oxygen, isoflurane 0.5%, fentanyl 150 u.g, and controlled ventilation. During the first 15 minutes of the procedure, blood pressure decreases 30%. The most likely cause is