Anesthesia Hub -

10 Random Questions

A patient has decreased lung compliance and hypoxemia after a 30-minute episode of laryngospasm following extubation. The most likely cause is

(A) allergic reaction to the anesthetic
(B) altered alveolar-capillary membrane permeability
(C) anesthetic-induced lymphatic dysfunction
(D) increased pulmonary capillary pressure
(E) negative pulmonary interstitial hydrostatic pressure

BASIC Respiratory & Critical Care General

A 30-year-old man is brought to the emergency department after being rescued from a house fire. With the trachea intubated and FiO2 at 1.0, arterial blood gas values are PaO2 495 mmHg, PaCO2 28 mmHg, and pH 7.28. Hemoglobin saturation measured by co-oximeter is 50%. The most appropriate next step is to

(A) add positive end-expiratory pressure
(B) add n-acetylcysteine to the inhaled gases
(C) administer sodium bicarbonate intravenously
(D) transfuse 2 units of packed red blood cells
(E) transfer to a hyperbaric chamber

ADVANCED General

Which of the following must be considered during perioperative management of a patient on long-term lithium therapy?

(A) Intravenous fluids should include sodium
(B) Therapy should be discontinued for 14 days prior to anesthesia
(C) The requirement for succinylcholine is increased
(D) The requirement for volatile anesthetics is increased
(E) Urine output should be maintained with furosemide

BASIC Pharmacology & Pharmacokinetics General

During attempted awake intubation, the patient gags when the laryngoscope presses on the base of the tongue. Which of the following cranial nerves is responsible for the afferent limb of this reflex?

(A) Trigeminal
(B) Facial
(C) Glossopharyngeal
(D) Vagus
(E) Hypoglossal

BASIC Regional & Pain

Electrocautery units operate at frequencies between 300 kHz and 2 mHz to

(A) avoid pacemaker interference
(B) minimize ECG tracing interference
(C) minimize the likelihood of ventricular fibrillation
(D) optimize hemostasis
(E) provide the best "cutting" current

BASIC Equipment & Physics

In a patient with adult respiratory distress syndrome who is being mechanically ventilated, which of the following findings indicates the most severe disease?

(A) Decreased functional residual capacity
(B) Decreased lung compliance
(C) Hypercarbia
(D) Hypoxemia
(E) Increased dead space

ADVANCED Respiratory & Critical Care

Halothane

(A) has no effect on reflex hypoxic pulmonary vasoconstriction
(B) protects the myocardium from beta-adrenergic stimulation
(C) has a direct, negative chronotropic effect on the sinoatrial node
(D) metabolites decrease renal concentrating ability
(E) is unsafe for use with epinephrine-containing local anesthetics

BASIC Pharmacology & Pharmacokinetics

Which of the following findings necessitates the preoperative insertion of a ventricular pacemaker in a 48-year-old man scheduled to undergo cholecystectomy?

(A) Atrial flutter with 3:1 atrioventricular block
(B) Bifascicular (right bundle branch block and left anterior hemiblock) block
(C) Left bundle branch block with first-degree atrioventricular block
(D) Second-degree (Mobitz I) atrioventricular block
(E) Second-degree (Mobitz II) atrioventricular block

ADVANCED Cardiac

Each of the following would slow induction with a volatile anesthetic agent EXCEPT

(A) hypoalbuminemia
(B) hyperlipemia
(C) clean rubber tubing in the circle system
(D) fresh soda lime
(E) obesity

A patient has severe hypotension, bronchospasm, and edema of the upper airway after injection of radiocontrast medium during cerebral angiography. The most appropriate immediate treatment is administration of

(A) diphenhydramine
(B) epinephrine
(C) methylprednisolone
(D) phenylephrine
(E) ranitidine

BASIC Pharmacology & Pharmacokinetics General