10 Random Questions
The need for increased doses of nondepolarizing muscle relaxants in patients with extensive burns is best explained by
(A) increased protein binding
(B) hypermetabolism
(C) increased glomerular filtration rate
(D) proliferation of receptors on burned muscle
(E) decreased volume of distribution
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Each of the following is a complication of stellate ganglion block EXCEPT
(A) brachial plexus block
(B) diplopia
(C) local anesthetic-induced seizure
(D) recurrent laryngeal nerve palsy
(E) subarachnoid block
Reveal Answer
ADVANCED
Regional & Pain
An EKG shows ventricular tachycardia in a patient with a heart rate of 160 bpm and a blood pressure of 90/60 mmHg. The best initial therapeutic maneuver prior to cardioversion is
(A) carotid sinus massage
(B) intravenous administration of bretylium
(C) intravenous administration of amiodarone
(D) intravenous administration of propranolol
(E) precordial "thump"
Reveal Answer
BASIC
General
Cardiac
Which of the following statements concerning interscalene brachial plexus block is true?
(A) The three trunks of the plexus are in the same fascial plane as the internal jugular vein
(B) Distal spread of anesthetic past the humeral head is accelerated by adduction of the arm
(C) Anesthetic solution can spread up the fascial sheaths to involve the stellate ganglion
(D) Ipsilateral diaphragmatic paralysis results from epidural spread
(E) Rich vascularity in the sheaths promotes rapid vascular uptake of anesthetic
Reveal Answer
ADVANCED
Regional & Pain
Each of the following is consistent with exposure to organophosphates EXCEPT
(A) bronchodilation
(B) muscle weakness
(C) salivation
(D) sweating
(E) urinary retention
Reveal Answer
ADVANCED
Pharmacology & Pharmacokinetics
Trimethaphan causes each of the following EXCEPT
(A) cerebral vasodilation
(B) urinary retention
(C) pupillary cycloplegia
(D) histamine release
(E) potentiation of succinylcholine block
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Which of the following statements regarding innervation of the upper extremity is true?
(A) Blockade of the radial nerve decreases the patient's ability to spread the fingers apart
(B) The brachial plexus receives preganglionic sympathetic fibers arising from C5 through T2
(C) Interscalene injection of the brachial plexus at C6 is likely to spare the axillary nerve.
(D) The musculocutaneous nerves receive contributions from C5 and C6
(E) The vertebral artery lies posterior to the nerve roots of the brachial plexus
Reveal Answer
ADVANCED
Regional & Pain
A 69-year-old man is confused and agitated one hour after preoperative intramuscular administration of scopolamine for awake fiberoptic laryngoscopy. SpO2 measured by pulse oximetry is 97%. Which of the following drugs is most appropriate for treatment of the change in mental status?
(A) Fentanyl
(B) Flumazenil
(C) Midazolam
(D) Neostigmine
(E) Physostigmine
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Each of the following changes is expected with deliberate hypothermia EXCEPT
(A) decreased unloading of oxygen from hemoglobin
(B) a 5% decrease in MAC for each 1°C decrease in temperature
(C) increased arterial oxygen and carbon dioxide contents
(D) a 50% decrease in cerebral metabolic rate at 28°C
(E) spike and dome EEG activity at temperatures below 30°C
Reveal Answer
BASIC
General
Cardiac
Compared with lidocaine, bupivacaine is more likely to cause dysrhythmias because it
(A) enhances potassium-hydrogen ion exchange
(B) is less soluble in lipids
(C) produces more prolonged block of sodium channels
(D) sensitizes the myocardium to catecholamines
(E) sustains calcium channels open
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Regional & Pain