A 65-year-old man is disoriented and has a headache and nausea in the recovery room 30 minutes after transurethral resection of the prostate with glycine irrigation performed under spinal anesthesia. Heart rate is 50 bpm and blood pressure is 180/110 mmHg. Which of the following is LEAST likely?
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
Which of the following would be most likely to result in neonatal depression when administered to a healthy parturient during an uncomplicated labor and vaginal delivery?
(A) Nitrous oxide 60% in oxygen supplemented with halothane 0.5% for 10 minutes before delivery
(B) Ketamine 20 mg intravenously 30 minutes before delivery
(C) Meperidine 100 mg intramuscularly 2 hours before delivery
(D) Thiopental 100 mg intravenously 30 minutes before delivery
(E) Nitrous oxide 60% in oxygen supplemented with enflurane 0.7% for 10 minutes before delivery
An anesthesia machine is set to deliver oxygen 2 L/min, nitrous oxide 2 L/min, and sevoflurane. After 30 minutes of stable anesthesia, which of the following, is the most likely cause of a decrease in the oxygen analyzer reading from 50% to 30%?
(A) A leak in the ventilator bellows
(B) Accumulation of water on the oxygen sensor membrane
(C) Calibration at 100% oxygen using less than 100% oxygen
(D) Disconnection of the wall oxygen hose
(E) Presence of the oxygen analyzer in the expiratory limb