10 Random Questions
Which of the following will have the LEAST effect on the shape of the autoregulatory curve for cerebral blood flow?
- (A) Isoflurane
- (B) Nitroprusside
- (C) Hypercarbia
- (D) Essential hypertension
- (E) Cerebral infarction
Phantom limb pain is an example of which of the following types of pain?
- (A) Central pain
- (B) Nociceptive pain
- (C) Psychosomatic pain
- (D) Sympathetically mediated pain
- (E) Vasospastic pain
Spontaneously breathing enflurane at 1 MAC causes increased
- (A) airway resistance
- (B) diaphragm function
- (C) carbon dioxide production
- (D) intercostal muscle function
- (E) physiologic dead space
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
After inflation of both the tracheal and endobronchial cuffs of a left-sided double-lumen tube, the following are noted on auscultation of the chest: Left lumen clamped --> Breath sounds absent bilaterally; Right lumen clamped --> Breath sounds present on left only; Both lumens open --> Breath sounds present on left only. The most appropriate action is to
- (A) decrease the endobronchial cuff volume
- (B) decrease the tracheal cuff volume
- (C) reinsert the tube, rotating it 180 degrees to the right
- (D) suction both lumens
- (E) withdraw the tube slightly and repeat the auscultory maneuvers
The five curves shown represent the uptake of enflurane, desflurane, halothane, isoflurane, and nitrous oxide. Which uptake curve best depicts desflurane?
- (A) Curve A
- (B) Curve B
- (C) Curve C
- (D) Curve D
- (E) Curve E
Which of the following is an effect of clonidine?
- (A) Agitation
- (B) Salivation
- (C) Tachycardia
- (D) Tachypnea
- (E) Vasodilation
A patient who is scheduled for a gastrectomy had abnormal liver function tests for four days following a prior cholecystectomy. In your consultation note, you should
- (A) recommend sevoflurane anesthesia since abnormal postoperative liver function tests are unlikely with this drug
- (B) recommend subarachnoid anesthesia since changes in hepatic blood flow would be less than with general anesthesia
- (C) indicate that abnormal liver function tests are likely to follow this operation regardless of the anesthetic drugs used
- (D) require preoperative screening for hepatitis B antigen and antibodies
- (E) recommend avoiding halothane since it is more likely to produce hepatitis in patients who had previous upper abdominal surgery
Epidural block is safer at the L3-L4 interspace than at the T12-L1 interspace because of the location of the
- (A) anterolateral epidural veins
- (B) inferior border of the cauda equina
- (C) inferior border of the conus medullaris
- (D) inferior border of the subarachnoid space
- (E) blood supply to the anterior spinal cord
A patient who is paraplegic secondary to spinal cord transection at T3 develops bradycardia and facial flushing during a nephrectomy under general anesthesia with nitrous oxide, fentanyl, and atracurium. The most likely cause of this response is
- (A) release of histamine
- (B) stimulation of the carotid sinus
- (C) release of prostaglandins
- (D) vagal response to peritoneal traction
- (E) release of epinephrine