10 Random Questions


Which of the following best explains the decreased effect of hyperventilation on cerebral blood flow when PaCO2 decreases below 20 mmHg?

BASIC Neuro

You are asked to evaluate a 2000-g male infant three hours after vaginal delivery because of a respiratory rate of 50/min, pulse rate of 115 bpm, and the following arterial blood gas values while breathing room air: PaO2 64 mmHg, PaCO2 43 mmHg, and pH 7.33. His mother received meperidine 75 mg two hours before delivery. Appropriate management includes

ADVANCED Pediatric

Which of the following is most likely to increase hepatic blood flow during general anesthesia?

BASIC General

When compared with a healthy 30-year-old man, which of the following respiratory parameters is decreased in an otherwise healthy 80-year-old man?

BASIC Respiratory & Critical Care

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

Early deceleration of fetal heart rate


Compared with the adult airway, the neonatal airway has which of the following characteristics?

ADVANCED Pediatric

A 46-year-old patient is undergoing resection of a posterior fossa tumor with the head elevated 10 cm above the level of the heart. During the procedure, the following changes in vital signs are observed. Which of the following is the most likely cause of the change in heart rate?


Deliberate hypothermia and circulatory arrest is planned for clipping of a giant basilar artery aneurysm. Which of the following statements is true?

ADVANCED Neuro

An asymptomatic 38-year-old woman is scheduled for elective cesarean delivery. The preoperative EKG shows left axis deviation that was not present one year ago. The most appropriate next step is to

ADVANCED OB