10 Random Questions
Which of the following is the most common initial manifestation of malignant hyperthermia?
- (A) Hyperkalemia
- (B) Increased distal esophageal temperature
- (C) Increased PETCO2
- (D) Red discoloration of urine
- (E) Ventricular irritability
A 25-year-old woman undergoes a difficult open cholecystectomy during anesthesia with isoflurane, nitrous oxide, fentanyl, and vecuronium. Five units of blood are administered intraoperatively. Two days later, the patient has mildly increased serum transaminase concentrations and markedly increased alkaline phosphatase and direct bilirubin concentrations. Which of the following is the most likely cause?
- (A) Acute viral hepatitis
- (B) Hemolysis
- (C) Isoflurane-induced liver dysfunction
- (D) Retained common duct stone
- (E) Sepsis
Which of the following time concentration curves would be expected in arterial blood following intravenous injection of indocyanine green dye in a 3-year-old child with a small ventricular septal defect?
An anesthetized patient in the sitting position has a mean arterial pressure of 80 mmHg measured with a transducer placed at the level of the heart. Mean cerebral arterial pressure 20 cm above the transducer is
- (A) 100 mmHg
- (B) 80 mmHg
- (C) 65 mmHg
- (D) 60 mmHg
- (E) 50 mmHg
A patient with a fasting blood glucose concentration of 100 mg/dL undergoes a four-hour operation under general anesthesia without intraoperative administration of glucose. On emergence the most likely finding will be
- (A) marked hypoglycemia
- (B) mild hypoglycemia
- (C) normoglycemia
- (D) mild hyperglycemia
- (E) marked hyperglycemia
Cerebral blood flow is decreased by each of the following EXCEPT
- (A) etomidate
- (B) midazolam
- (C) nitrous oxide
- (D) increased minute ventilation
- (E) positive end-expiratory pressure
While checking an anesthesia machine, opening the oxygen flow-control valve yields no oxygen flow, although the wall-mounted oxygen pipeline supply gauge reads 50 psig. Opening the backup oxygen cylinder results in normal oxygen flow. The most likely cause is
- (A) failure of the oxygen pipeline supply
- (B) failure of the second-stage oxygen pressure regulator
- (C) a malfunctioning check valve in the oxygen pipeline supply inlet
- (D) a malfunctioning fail-safe valve
- (E) a malfunctioning oxygen flow-control valve
During induced hypotension for clipping of a cerebral aneurysm in a 20-degree head-up position, the arterial pressure transducer should be zero referenced at which level?
- (A) External auditory meatus
- (B) Midaxillary line at the fifth intercostal space
- (C) Sternal notch
- (D) Thyroid cartilage
- (E) Top of the cranium
A celiac plexus block effectively relieves pain at which of the following sites?
- (A) Abdominal viscera above the pelvis
- (B) Parietal peritoneum above the pelvis
- (C) Pelvic parietal peritoneum
- (D) Pelvic viscera
- (E) Visceral pleura
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
- (A) glipizide 5 mg orally
- (B) NPH insulin 10 units subcutaneously
- (C) regular insulin 10 units intravenously
- (D) dextrose and regular insulin by infusion
- (E) no additional diabetic medication