10 Random Questions
Intractable pain due to unresectable pancreatic carcinoma is most effectively treated with
(A) bilateral neurolytic intercostal blocks at T10-12
(B) bilateral sympathetic blocks with phenol
(C) celiac plexus block with alcohol
(D) epidural block with phenol
(E) subarachnoid block with alcohol
Reveal Answer
ADVANCED
Regional & Pain
Which of the following is the strongest indication for one-lung ventilation?
(A) Descending thoracic aortic aneurysm
(B) Esophageal resection
(C) Lobectomy for lung abscess
(D) Lobectomy for tumor
(E) Pneumonectomy for tumor
Reveal Answer
If a patient with excessive bleeding during exploratory laparotomy has a normal activated clotting time, the LEAST likely cause of the bleeding is
(A) antithrombin III deficiency
(B) dilutional thrombocytopenia
(C) fibrinolysis
(D) administration of heparin 5000 units
(E) preoperative ingestion of aspirin
Reveal Answer
BASIC
General
Which of the following statements concerning brain stem auditory evoked responses is true?
(A) They monitor cortical function
(B) They are not affected by changes in carbon dioxide tension
(C) They are not affected by mild hypothermia (34°C)
(D) They are more resistant to anesthetic effects than somatosensory evoked responses
(E) They are abolished coincident with flattening of the EEG
Reveal Answer
ADVANCED
Neuro
Pulmonary artery occlusion pressure
(A) does not reliably reflect left ventricular end-diastolic volume when left ventricular compliance is reduced
(B) inaccurately reflects left atrial pressure when left atrial pressure exceeds 15 mmHg
(C) is measured at end-inspiration in mechanically ventilated patients
(D) overestimates left atrial pressure in patients with poor lung compliance
(E) reflects left atrial pressure only if the catheter tip is located in zone II of the lung
Reveal Answer
ADVANCED
Equipment & Physics
General
Cardiac
Which of the following statements concerning pipecuronium is true?
(A) It has a faster onset than pancuronium
(B) It increases systemic vascular resistance
(C) It induces tachycardia
(D) It is eliminated by the kidney
(E) It induces histamine release
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
A patient with moderate hypothyroidism and unstable angina requires urgent coronary artery bypass grafting. Which of the following is most appropriate before proceeding with the operation?
(A) Initiation of epinephrine infusion
(B) Intramuscular administration of a barbiturate
(C) Intravenous administration of triiodothyronine (T3)
(D) Intravenous administration of thyroxine (T4)
(E) Treatment of myocardial ischemia
Reveal Answer
ADVANCED
General
Each of the following factors decreases uterine blood flow EXCEPT
(A) aortocaval compression
(B) hypocarbia
(C) hypoxia
(D) sympathetic block
(E) uterine contractions
Reveal Answer
ADVANCED
OB
A 70-year-old man undergoes cross clamping of the aorta for repair of an abdominal aneurysm. Which of the following methods is most appropriate for decreasing hypotension associated with removal of the cross clamp?
(A) Administration of a phenylephrine bolus when the cross clamp is removed
(B) Correction of any base deficit with sodium bicarbonate during clamping
(C) Decrease of anesthetic to allow blood pressure to increase to 20% above preclamp levels
(D) Volume loading to increase pulmonary artery occlusion pressure prior to removal
(E) Infusion of dopamine 10 minutes prior to removal
Reveal Answer
ADVANCED
General
Which of the following is characteristic of the pharmacokinetics of alfentanil?
(A) Clearance is greater than that of fentanyl
(B) Elimination half-life is normal in patients with hepatic insufficiency
(C) Protein binding is minimal
(D) The majority of alfentanil in plasma is ionized
(E) Volume of distribution is smaller than that of fentanyl
Reveal Answer