Anesthesia Hub -

10 Random Questions

Which of the following abnormalities in serum is most likely to result from intraoperative discontinuation of parenteral hyperalimentation?

(A) Hypocalcemia
(B) Hypocarbia
(C) Hypoglycemia
(D) Hypokalemia
(E) Hyponatremia

BASIC Transfusions & Fluids General

Which of the following statements about patient-controlled analgesia using opioids is true?

(A) It is not associated with respiratory depression
(B) It obviates loading doses
(C) It requires a background opioid infusion to be effective
(D) It requires intravenous administration to be effective
(E) It requires less drug than intramuscular dosing for similar analgesia

ADVANCED Regional & Pain

Following induction of anesthesia with sufentanil and pancuronium, a patient with left main coronary artery disease has a decrease in blood pressure from 110/70 to 60/40 mmHg. There is no change in heart rate or ECG. The most appropriate management of the hypotension is administration of

(A) calcium chloride
(B) ephedrine
(C) epinephrine
(D) isoproterenol
(E) phenylephrine

One hour after an open cholecystectomy, a 42-year-old patient is hemodynamically stable and breathing spontaneously (rate 10/min and regular) at an FiO2 of 0.4. Fentanyl, isoflurane, nitrous oxide, and pancuronium were used during the procedure. Analysis of arterial blood gases (pH, pCO2, pO2) is most likely to show:

(A) 7.18 40 100
(B) 7.18 60 140
(C) 7.28 50 85
(D) 7.40 26 220
(E) 7.40 40 40

BASIC Respiratory & Critical Care

An obese, 75-year-old woman is scheduled for open reduction of a left forearm fracture. Thirty minutes after successful interscalene block using 20 ml of 2% lidocaine, she becomes dyspneic. The dyspnea is most likely related to

(A) cervical epidural block
(B) cervical sympathetic block with bronchospasm
(C) chylothorax
(D) elevation of the left hemidiaphragm
(E) recurrent laryngeal nerve block

ADVANCED Regional & Pain

Which of the following statements concerning the metabolism of atracurium is true?

(A) It is related to cardiac output
(B) It is decreased by hyperthermia
(C) It is unaffected by increasing age
(D) It is decreased by low plasma cholinesterase activity
(E) It is decreased in renal failure

BASIC Pharmacology & Pharmacokinetics

If minute ventilation remains constant, which of the following changes in PetCO2 and PaCO2 will result from a decrease in cardiac output? (PetCO2, PaCO2)

(A) Decreased, Decreased
(B) Increased, Increased
(C) Unchanged, Unchanged
(D) Decreased, Increased
(E) Increased, Decreased

BASIC Respiratory & Critical Care

Compared with adults, caudal anesthesia in children is associated with

(A) higher risk for subarachnoid puncture
(B) more severe hypotension
(C) more rapid onset of sensory block
(D) smaller volume of anesthetic per kilogram of body weight
(E) toxic effects at lower serum levels of bupivacaine

ADVANCED Pediatric Regional & Pain

Which of the following factors is LEAST likely to affect serum ionized calcium concentration following blood transfusion?

(A) Age of blood transfused
(B) Amount of blood transfused
(C) Body temperature
(D) Serum pH
(E) Rate of transfusion

BASIC Transfusions & Fluids

Diffuse microvascular bleeding is noted in a patient who has received 25 units of whole blood for a liver resection. Platelet count is 40,000/mm3, prothrombin time is 18 sec, activated partial thromboplastin time is 54 sec, and serum fibrinogen concentration is 60 mg/dl. The most likely cause of the bleeding is

(A) abnormal platelet function
(B) citrate toxicity
(C) depressed levels of factors V and VIII
(D) dilutional thrombocytopenia
(E) disseminated intravascular coagulation

BASIC Transfusions & Fluids