Anesthesia Hub -

10 Random Questions

Each of the following values is associated with acute tubular necrosis EXCEPT

(A) urine osmolality of 200 mOsm/L
(B) urine sodium concentration of 15 mEq/L
(C) urine specific gravity of 1.009
(D) urine/serum osmolality ratio of 1.2
(E) fractional excretion of sodium of 4%

BASIC General

Hyperkalemia in response to the administration of an intubating dose of succinylcholine is associated with each of the following disorders EXCEPT

(A) poliomyelitis
(B) multiple sclerosis
(C) hemiplegia
(D) acute cervical cord transection
(E) familial periodic paralysis

ADVANCED Pharmacology & Pharmacokinetics

A previously healthy 46-year-old woman has severe substernal chest pain one hour after receiving morphine sulfate 10 mg intramuscularly for an elective cholecystectomy. Vital signs, SpO2, and findings on a five-lead ECG on the operating room monitor are within normal limits. Which of the following is the most appropriate next step?

(A) Sublingual administration of nitroglycerin
(B) Intravenous administration of butorphanol
(C) Intravenous administration of naloxone
(D) Cardiology consultation
(E) Cancellation of surgery

BASIC Pharmacology & Pharmacokinetics General

Metoclopramide

(A) decreases gastric acid secretion
(B) decreases gastroesophageal sphincter tone
(C) is contraindicated in patients with Parkinson's disease
(D) is most effective when administered in combination with atropine
(E) requires an intact vagus nerve for gastrointestinal effects

ADVANCED Pharmacology & Pharmacokinetics

Two months ago a 68-year-old man with insulin-dependent diabetes mellitus had a transurethral resection of the prostate under spinal anesthesia with tetracaine plus epinephrine. He now has numbness and tingling in both feet and disturbance of gait. Physical examination demonstrates stocking-type hypesthesia of both feet and ankles. The most likely diagnosis is

(A) anterior spinal artery syndrome
(B) diabetic neuropathy
(C) adhesive arachnoiditis
(D) cauda equina syndrome
(E) peripheral nerve injury from the lithotomy position

ADVANCED General Regional & Pain

Which of the following neurophysiologic monitoring modalities is LEAST affected by administration of volatile anesthetic agents?

(A) Brain stem auditory evoked potentials
(B) Electroencephalogram
(C) Motor evoked potentials
(D) Somatosensory evoked potentials
(E) Visual evoked potentials

BASIC Equipment & Physics

An apneic adult is receiving an oxygen flow of 4 L/min through a rigid bronchoscope. After five minutes of apnea, which of the following findings is most likely?

(A) A decrease in cardiac output
(B) A decrease in pulmonary vascular resistance
(C) A decrease in SpO2 from 99% to 89%
(D) An increase in PaCO2 of 18 mmHg
(E) Serum bicarbonate concentration of 30 mEq/L

BASIC Respiratory & Critical Care

With direct arterial blood pressure monitoring

(A) systolic pressure in the aortic root exceeds that in the radial artery
(B) mean and diastolic pressures are lower in the dorsalis pedis artery than in the aortic root
(C) the dicrotic notch is not clearly found on femoral arterial waveforms
(D) an underdamped waveform is characteristic of bubbles in the system
(E) longer tubing between artery and transducer artifactually augments systolic pressure

BASIC Equipment & Physics

Hypothermia to 29°C will decrease

(A) hematocrit
(B) plasma fibrinogen concentration
(C) plasma pH
(D) plasma protein concentration
(E) platelet function

BASIC General

The highest serum fluoride levels are seen following the administration of which of the following volatile anesthetics?

(A) Desflurane
(B) Enflurane
(C) Halothane
(D) Isoflurane
(E) Sevoflurane

BASIC Pharmacology & Pharmacokinetics