10 Random Questions
Which of the following is the most likely cause of apnea occurring after a retrobulbar block?
- (A) Epidural injection
- (B) Increased intracranial pressure
- (C) Oculopontine reflex
- (D) Ophthalmic artery injection
- (E) Subarachnoid injection
Compared with diazepam, midazolam
- (A) is more lipid soluble
- (B) has a longer elimination half-life
- (C) has a larger volume of distribution
- (D) has a greater clearance
- (E) undergoes slower hepatic metabolism
Which of the following EEG findings is expected during maintenance anesthesia with high-dose fentanyl (50 ju-g/kg), nitrous oxide, and oxygen?
- (A) Low-frequency high-voltage activity
- (B) Nondominant hemispheric slowing
- (C) Predominant alpha activity
- (D) Prominent beta activity
- (E) Spindle-shaped bursts
Which of the following findings on the left is most likely to be associated with an increased risk of complications with cannulation of the left internal jugular vein compared with cannulation of the right internal jugular vein?
- (A) Longer recurrent laryngeal nerve
- (B) Lower location of the cupola of the pleura
- (C) More acute angle between the internal jugular and innominate veins
- (D) More anterior location of the phrenic nerve
- (E) Presence of the thoracic duct
The preanesthetic ECG trace (lead II) shown from a 32-year-old woman suggests
- (A) potential for tachyarrhythmia
- (B) need for preanesthetic atropine
- (C) myocardial ischemia
- (D) left bundle branch block
- (E) right ventricular hypertrophy
A 57-year-old man has back pain, a heart rate of 90 bpm, decreased pulse in the left arm, and blood pressure of 200/110 mmHg. During infusion of nitroprusside, heart rate increases to 115 bpm and blood pressure decreases to 140/80 mmHg. The most appropriate management at this time is administration of
- (A) droperidol
- (B) nifedipine
- (C) normal saline solution
- (D) propranolol
- (E) verapamil
A 60-kg, 70-year-old man requires open reduction and internal fixation of an intertrochanteric fracture sustained 24 hours ago. Serum creatinine concentration is 1 mg/dl and blood urea nitrogen concentration is 40 mg/dl. The most likely cause of these findings is
- (A) acute tubular necrosis
- (B) chronic renal insufficiency
- (C) dehydration
- (D) obstruction of the bladder outlet
- (E) recent gastrointestinal hemorrhage
Fresh frozen plasma is indicated in each of the following situations EXCEPT
- (A) after rapid transfusion of 1.5 L CPD-stored red blood cells
- (B) antithrombin III deficiency
- (C) replacement of factor VIII
- (D) reversal of warfarin effect
- (E) thrombotic thrombocytopenic purpura
Which property of oxygen is detected by the fail-safe device on the anesthesia machine?
- (A) Concentration
- (B) Flow
- (C) Pressure
- (D) Partial pressure
- (E) Reserve volume
A 100-kg, 42-year-old woman received enflurane and oxygen for clipping of an intracranial aneurysm lasting eight hours. In the first two postoperative hours, urine output is 2 liters. Serum sodium concentration is 152 mEq/L. Urine osmolality and central venous pressure are low. Which of the following is best used to establish the diagnosis?
- (A) Pulmonary artery occlusion pressure
- (B) Serum fluoride concentration
- (C) Serum osmolality
- (D) Response to antidiuretic hormone
- (E) Response to fluid restriction