10 Random Questions
With an interscalene brachial plexus block
- (A) more local anesthetic drug is required than for axillary block
- (B) the biceps and brachialis muscles are blocked last
- (C) the intercostobrachial nerve is usually blocked
- (D) the lateral antebrachial cutaneous nerve is usually spared
- (E) the ulnar nerve is most likely to be spared
Which of the following correctly describes the anatomical location of the brachial plexus?
- (A) Adjacent to the subclavian vein as it passes between the scalene muscles
- (B) Between the middle and posterior scalene muscles
- (C) Posterior to the first rib
- (D) Posterior to the subclavian artery
- (E) Posterior to the vertebral artery
Having received excessive intraoperative blood replacement, a patient anesthetized with fentanyl, diazepam, and nitrous oxide develops acute pulmonary edema. The drug most likely to have an immediate beneficial effect is
- (A) nitroglycerin
- (B) nitroprusside
- (C) digoxin
- (D) isoflurane
- (E) mannitol
A 45-year-old man is scheduled for exploratory laparotomy. Six months ago, he received doxorubicin (Adriamycin) therapy for testicular cancer. This patient is at increased risk for
- (A) abnormal liver function
- (B) bone marrow depression
- (C) heart failure
- (D) chronic renal failure
- (E) pulmonary fibrosis
The action of dantrolene on skeletal muscle
- (A) occurs within the neuromuscular junction
- (B) alters electrical properties of the muscle membrane
- (C) does not result in muscle relaxation
- (D) decreases myoplasmic calcium concentration
- (E) results from competitive inhibition of caffeine
A 50-year-old man with severe coronary artery disease undergoes coronary artery bypass grafting. Five minutes after successful termination of cardiopulmonary bypass, ST-segment elevation is noted in lead II of the ECG, and the following findings are noted: BP 70/40, Pulse 80, CVP 16 cmH2O, PAp 25/10. Appropriate management is to
- (A) administer propranolol
- (B) administer nitroglycerin
- (C) administer dopamine
- (D) administer crystalloid fluid
- (E) return the patient to cardiopulmonary bypass
Which of the following will occur if the top of the oxygen flowmeter is cracked and leaking during anesthesia with nitrous oxide and oxygen?
- (A) The back-pressure check valve will protect against a hypoxic gas mixture
- (B) The fail-safe mechanism will protect against a hypoxic gas mixture
- (C) The inspired oxygen concentration will be less than that set by the flowmeters
- (D) The leak will be detected if the circle is pressurized prior to use
- (E) The rotameter will accurately reflect the fresh gas flow to the patient
The trend plot shows end-tidal gases measured during a radical neck dissection. The event occurring at A is most likely
- (A) acute hypotension
- (B) endobronchial intubation
- (C) kinking of the endotracheal tube
- (D) rupture of the endotracheal cuff
- (E) venous air embolism
Fentanyl-induced bradycardia is
- (A) independent of the speed of injection
- (B) independent of dose
- (C) caused by direct inhibition of adrenal catecholamine release
- (D) caused by vagal stimulation
- (E) caused by direct SA node depression
A healthy, but obese, 110-kg woman is scheduled for gastric stapling. Compared with that required at her ideal weight, the dose of thiopental required for anesthetic induction would likely be increased because of changes in
- (A) blood volume
- (B) muscle mass
- (C) circulation time
- (D) body fat
- (E) metabolic rate