10 Random Questions
After termination of an inhalation anesthetic, patient-controlled analgesia will
(A) be effective without a loading dose of opioid if started in the immediate postanesthetic period
(B) be associated with greater analgesic requirements than conventional intramuscular opioid techniques
(C) cause addiction or dependence to opioids if continued for more than 72 hours
(D) produce less patient satisfaction than intermittent intravenous administration of opioids
(E) show a diurnal variation in analgesic requirement
Reveal Answer
ADVANCED
Regional & Pain
A 62-year-old man, who had a myocardial infarction three years ago, complicated by congestive heart failure and renal failure, is undergoing a colectomy. A pulmonary artery catheter demonstrates a cardiac output higher than measurements recorded during a cardiac catheterization two months after the infarction. Which of the following most likely contributes to the increased cardiac output?
(A) Creation of an arteriovenous fistula
(B) Increased hemoglobin concentration from 10 to 12 g/dl
(C) Stimulation of carotid body receptors
(D) Transcutaneous nitroglycerin
(E) Use of a beta-adrenergic blocker to prevent myocardial reinfarction
Reveal Answer
ADVANCED
Cardiac
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
Reveal Answer
BASIC
Equipment & Physics
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
Cardiac output measured by thermodilution with a pulmonary artery catheter most accurately reflects systemic blood flow in a patient with
(A) aortic regurgitation
(B) atrial septal defect
(C) patent ductus arteriosus
(D) tricuspid insufficiency
(E) ventricular septal defect
Reveal Answer
ADVANCED
Equipment & Physics
Cardiac
The test dose of local anesthetic administered through an epidural needle or catheter should be sufficient to produce
(A) bradycardia
(B) seizure activity
(C) hypotension
(D) segmental analgesia
(E) spinal anesthesia
Reveal Answer
BASIC
OB
Regional & Pain
Which of the following is an effect of hypothermia in neonates?
(A) Decreased duration of neuromuscular blockade
(B) Increased narcotic requirements
(C) Increased pulmonary vascular resistance
(D) Metabolic alkalosis
(E) Shivering
Reveal Answer
ADVANCED
Pediatric
What is the expected mixed venous oxygen tension, in mmHg, in a normal adult after breathing 100% oxygen for 10 minutes?
(A) 573
(B) 563
(C) 150
(D) 95
(E) 45
Reveal Answer
Compared with epidural administration of hydrophilic opioids, epidural administration of lipophilic opioids is associated with
(A) earlier onset of pruritus
(B) greater motor block when combined with local anesthetics
(C) higher incidence of delayed respiratory depression
(D) lesser sensitivity to reversal of analgesia by naloxone
(E) slower onset of analgesia
Reveal Answer
ADVANCED
Pharmacology & Pharmacokinetics
Regional & Pain
The last muscle to be affected by an interscalene brachial plexus block is the
(A) brachialis
(B) brachioradialis
(C) biceps
(D) flexor carpi radialis
(E) interosseous
Reveal Answer
ADVANCED
Regional & Pain