10 Random Questions


You see a flash of fire from the endotracheal tube of a patient undergoing carbon dioxide laser excision of laryngeal polyps. The immediate response should be to


A 40-year-old man is undergoing open reduction and internal fixation of a fractured femur. During anesthesia with fentanyl, sevoflurane, and oxygen, heart rate decreases to 20 bpm and 6 premature ventricular contractions per minute are noted. No pulse is detected. The most appropriate next step is to

BASIC General

Which of the following complications of caudal anesthesia with 0.25% bupivacaine is more likely in children than in adults?

ADVANCED Pediatric Regional & Pain

A 1-month-old infant becomes hypoxemic faster during apnea than an adult. Which of the following is the primary cause of this difference?

ADVANCED Respiratory & Critical Care Pediatric

A 70-kg patient experiences pain on incision of a thigh abscess. The area around the abscess had been infiltrated with 30 ml of 1% lidocaine in 1:200,000 epinephrine. The local anesthetic was most likely ineffective because of

BASIC Pharmacology & Pharmacokinetics Regional & Pain

Which of the following statements concerning carbon monoxide poisoning is true? A 38-year-old woman with a large goiter has undergone subtotal thyroidectomy. Airway obstruction is noted immediately after extubation despite normal vocal cord function on laryngoscopy. Which of the following is the most likely explanation?

ADVANCED General

During cardiopulmonary bypass, the perfusionist notes that the mixed venous oxygen saturation has decreased from to 55%. Which of the following is the most likely cause?

ADVANCED Cardiac

A tourniquet with dual bladders is being used for intravenous regional anesthesia of the upper extremity. At what point in the procedure should the distal tourniquet be inflated?

ADVANCED Regional & Pain

A 30-year-old man who is breathing spontaneously has a ventilatory pattern of sustained deep inspiration and occasional expiratory gasps during emergence from general anesthesia after posterior fossa craniotomy. Which of the following is the most likely cause?

ADVANCED Neuro

A 4-month-old child undergoing a craniectomy for craniosynostosis is anesthetized with nitrous oxide and halothane. Suddenly the systolic blood pressure decreases from 75 to 30 mmHg, and the PetCO2 decreases from 35 to 6 mmHg. Which of the following maneuvers is LEAST likely to have a beneficial effect?

ADVANCED Pediatric Neuro