10 Random Questions
A direct 5-joule shock is unsuccessful in converting ventricular fibrillation occurring after discontinuation of cardiopulmonary bypass. The most appropriate next step is to
- (A) administer calcium chloride
- (B) administer bretylium
- (C) administer regular insulin
- (D) administer sodium bicarbonate
- (E) increase shock energy
A patient who is scheduled for emergency debridement of an infected wound on the sole has trismus, rigidity of facial muscles, and spasms of the intercostal muscles, diaphragm, and extremities. During anesthesia, this patient is at increased risk for each of the following EXCEPT
- (A) hypotension
- (B) hypertension
- (C) tachycardia
- (D) diaphoresis
- (E) hypothermia
A 40-year-old woman with chronic renal failure is undergoing revision of an arteriovenous shunt with general anesthesia. The capnographic waveform was obtained during spontaneous ventilation 20 minutes after administration of succinylcholine and tracheal intubation. Which of the following is the most likely cause of these findings?
- (A) Leaking endotracheal cuff
- (B) Channeling of soda lime
- (C) Light anesthesia
- (D) Metabolic acidosis
- (E) Residual neuromuscular block
A patient is placed in the prone jackknife position for lumbar subarachnoid injection of tetracaine 10 mg in 10 ml of preservative-free sterile water. Which of the following results is most likely?
- (A) Respiratory insufficiency
- (B) Sensory and motor block at T4-S1
- (C) Sensory and motor block at L1-S5
- (D) Sensory loss without motor block at L1-S5
- (E) Sensory and motor block at S3-S5
Which of the following is increased in patients with chronic anemia?
- (A) Mixed venous oxygen content
- (B) P50
- (C) Pulmonary vascular resistance
- (D) Systemic vascular resistance
- (E) Blood viscosity
A 16-year-old patient who sustained trauma is being resuscitated. In deciding whether to infuse lactated Ringer's solution or albumin, which of the following is true?
- (A) At one hour, both will remain in the intravascular compartment to an equal extent
- (B) Both have zero risk for hepatitis transmission
- (C) Both will decrease ionized calcium levels
- (D) The glomerular filtration rate will be higher with infusion of albumin
- (E) Lactated Ringer's solution causes a greater increase in intracranial pressure
A 57-year-old man with hepatocellular disease is scheduled to undergo a colectomy for colon cancer. Preoperative laboratory studies show a plasma albumin concentration of 2.4 g/dl (normal = 3.5 to 5.5 g/dl); prothrombin time is 16 sec (control 12 sec). Which of the following statements concerning the anesthetic management of this patient is true?
- (A) Atracurium will have a prolonged duration of action
- (B) The risk for perioperative hyperglycemia is increased
- (C) Mivacurium will have a shortened duration of action
- (D) The unbound fraction of thiopental will be increased
- (E) Vitamin K injection will normalize the prothrombin time
A patient has a heart rate of 110 bpm one year after heart transplantation. His tachycardia is most likely the result of
- (A) altered baroreceptor sensitivity
- (B) cardiac denervation
- (C) compensation for a fixed stroke volume
- (D) cyclosporine
- (E) prednisone
Positive end-expiratory pressure is effective for treatment of hypoxia resulting from each of the following EXCEPT
- (A) cardiogenic pulmonary edema
- (B) intraoperative Trendelenburg position
- (C) lateral position during total hip replacement
- (D) lung contusion
- (E) status asthmaticus
A patient who had liver transplantation two years ago now requires general anesthesia for ENT surgery. Minimal rejection has occurred on a regimen of cyclosporine and prednisone. Which of the following is most likely?
- (A) Hypoalbuminemia
- (B) Hypocalcemia
- (C) Episodic hypoglycemia
- (D) Increased serum creatinine concentration
- (E) Prolonged prothrombin time