10 Random Questions
A 68-year-old man has a permanent DVI pacemaker that has been functioning appropriately. Which of the following is most likely to cause conversion to VOO pacing?
- (A) Electroconvulsive therapy
- (B) Insertion of a pulmonary artery catheter
- (C) Placement of a magnet over the pulse generator
- (D) Use of electrocautery near the pacemaker
- (E) Shivering
Neurolytic block is most appropriate for
- (A) abdominal pain secondary to hepatic carcinoma
- (B) abdominal pain secondary to chronic pancreatitis
- (C) persistent chest wall pain secondary to intercostal neuralgia following a thoracotomy for trauma
- (D) reflex sympathetic dystrophy of the upper extremity with an excellent but transient response to a series of stellate ganglion blocks with local anesthetic
- (E) a diabetic patient scheduled for surgical sympathectomy to relieve unilateral lower extremity pain secondary to severe peripheral vascular disease
Which of the following is an advantage of a circle system over a Mapleson D system?
- (A) Better anesthetic conservation
- (B) Lower dead space
- (C) Lower circuit resistance
- (D) More efficient scavenging
- (E) More rapid changes in inspired gas concentration
The flow-volume loop shown is most likely from a patient with which of the following?
- (A) Bilateral vocal cord paralysis
- (B) Chronic bronchitis
- (C) Tracheal stenosis six months after a previous tracheostomy
- (D) Tumor of the lower trachea
- (E) Normal respiratory status
Each of the following decreases hepatic blood flow EXCEPT
- (A) isoflurane anesthesia
- (B) spinal anesthesia
- (C) hypercarbia
- (D) mechanical ventilation
- (E) positive end-expiratory pressure
A 50-year-old patient is undergoing craniotomy for clipping of a cerebral aneurysm with isoflurane, nitrous oxide, and fentanyl anesthesia. At the time of aneurysm exposure, the EEG shows burst suppression. Which of the following is the most likely cause?
- (A) Cerebral ischemia
- (B) Cerebral vasospasm
- (C) Fentanyl effect
- (D) Isoflurane effect
- (E) Petit mal seizure activity
When used with morphine for premedication, which of the following drugs is most likely to cause sedation?
- (A) Atropine
- (B) Cephalothin
- (C) Clonidine
- (D) Metoclopramide
- (E) Ranitidine
A 70-kg, 50-year-old man is scheduled for muscle flap closure of a decubitus ulcer over the sacrum. He has been quadriplegic at the level of C6-7 for six years. Which of the following is most likely to result from subarachnoid anesthesia with tetracaine 10 mg for this procedure?
- (A) Atrioventricular block
- (B) Decreased risk for autonomic dysreflexia
- (C) Impaired expiratory muscle function
- (D) Impaired inspiratory muscle function
- (E) Inadequate block of spastic movements
Mepivacaine 40 ml of a 1% solution with epinephrine 1:200,000 is injected into the brachial plexus sheath at the axilla after eliciting a paresthesia in the ulnar nerve distribution. Which of the following is most likely to remain intact?
- (A) Adduction of the thumb
- (B) Flexion at the wrist
- (C) Sensation of the lateral forearm
- (D) Sensation on the palmar surface of the lateral three and one half fingers
- (E) Sensation on the palmar surface of the medial one and one half fingers
Phase II neuromuscular block is characterized by
- (A) depressed twitch height, sustained tetanus, post-tetanic potentiation
- (B) depressed twitch height, tetanic fade, post-tetanic potentiation
- (C) depressed twitch height, tetanic fade, no post-tetanic potentiation
- (D) normal twitch height, tetanic fade, post-tetanic potentiation
- (E) normal twitch height, tetanic fade, no post-tetanic potentiation