10 Random Questions
Each of the following conditions can be accurately evaluated with transesophageal echocardiography EXCEPT
- (A) intimal tear at the aortic arch
- (B) intracardiac air
- (C) left atrial thrombus
- (D) patent foramen ovale
- (E) right atrial myxoma
Reveal answer
As part of a preoperative evaluation, a patient had a thallium scan showing a 'cold spot' over the left ventricle that occurs with moderate exercise and disappears at rest. This most likely indicates
- (A) moderate-sized aneurysm of the left ventricle
- (B) acute myocardial ischemia
- (C) recent myocardial infarction
- (D) old myocardial infarction
- (E) Prinzmetal's variant angina
Reveal answer
Which of the following is most reliable for treatment of cerebral artery vasospasm associated with subarachnoid hemorrhage?
- (A) Antifibrinolytic therapy
- (B) Hyperventilation
- (C) Mannitol infusion
- (D) Nitroprusside infusion
- (E) Volume expansion
Reveal answer
Which of the following is true of both the neonatal and adult airways?
- (A) Epiglottic innervation is primarily vagal
- (B) Sniffing position requires placement of a pillow under the occiput
- (C) The cricoid ring is the narrowest part of the airway
- (D) The epiglottis has a relatively similar size and shape
- (E) The glottis is located at C3-4
Reveal answer
A 62-year-old woman with obesity and type II diabetes mellitus is scheduled to undergo vitrectomy of the right eye. Five minutes after retrobulbar injection with 0.75% bupivacaine 4 ml and intravenous administration of fentanyl 50 ju-g and midazolam 1 mg, she is apneic and unresponsive. Which of the following is the most likely cause?
- (A) Fentanyl-midazolam interaction
- (B) Hypoglycemia
- (C) Intravenous bupivacaine
- (D) Retrobulbar hematoma
- (E) Subarachnoid bupivacaine
Reveal answer
A previously healthy 46-year-old woman has severe substernal chest pain one hour after receiving morphine sulfate 10 mg intramuscularly for an elective cholecystectomy. Vital signs, SpO2, and findings on a five-lead ECG on the operating room monitor are within normal limits. Which of the following is the most appropriate next step?
- (A) Sublingual administration of nitroglycerin
- (B) Intravenous administration of butorphanol
- (C) Intravenous administration of naloxone
- (D) Cardiology consultation
- (E) Cancellation of surgery
Reveal answer
Compared with an induction dose of thiopental (4 mg/kg), an induction dose of propofol (2.5 mg/kg) produces
- (A) better maintenance of cerebral perfusion pressure
- (B) greater inhibition of glucocorticoid production
- (C) higher incidence of myoclonus
- (D) less severe hypotension
- (E) less severe respiratory depression
Reveal answer
Each of the following statements about pheochromocytoma is true EXCEPT:
- (A) Preoperative administration of alpha-adrenergic inhibitors will usually reverse EKG changes due to catecholamine myocarditis
- (B) Preoperative administration of alpha-adrenergic inhibitors decreases operative mortality
- (C) Beta-adrenergic inhibitors should be administered preoperatively only in conjunction with alpha-adrenergic inhibitors
- (D) Vasopressor therapy may be necessary postoperatively for treatment of hypotension
- (E) Nasal congestion is a sign of inadequate alpha-adrenergic block
Reveal answer
Following hypothermic cardiopulmonary bypass, adequacy of total body rewarming is best indicated by normothermia recorded from the
- (A) upper esophagus
- (B) lower esophagus
- (C) pulmonary artery
- (D) rectum
- (E) great toe
Reveal answer
Which of the following relationships is indicated by the curve illustrated in the graph shown?
- (A) Intracranial blood volume (X) and intracranial pressure (Y)
- (B) PaCO2 (X) and minute ventilation (Y)
- (C) PaO2 (X) and hemoglobin saturation (Y)
- (D) Preload (X) and stroke volume (Y)
- (E) Systemic arterial pressure (X) and cerebral blood flow (Y)
Reveal answer