Anesthesia Hub -

10 Random Questions

When inspired anesthetic gases are humidified

(A) most particles 1 to 2 microns in size are deposited in the trachea
(B) respiratory epithelial cilia become less active
(C) alveolar water vapor pressure is unchanged
(D) respiratory heat loss is abolished
(E) sterilization of breathing apparatus is mandatory

BASIC Equipment & Physics

Compared with general anesthesia, epidural anesthesia for hip arthroplasty is associated with

(A) decreased incidence of perioperative myocardial ischemia
(B) decreased intraoperative blood loss
(C) decreased risk for acute renal failure
(D) increased risk for stress-induced hyperglycemia
(E) increased thromboembolic complications

During laser excision of a vocal cord polyp, the tracheal tube ignites. Which of the following is the most appropriate next step?

(A) Continue ventilation with air
(B) Ensure patency of the endotracheal tube
(C) Extubate the trachea
(D) Flood the surgical field with saline solution
(E) Increase the concentration of nitrous oxide

ADVANCED Equipment & Physics General

Each of the following drugs increases the duration of succinylcholine action EXCEPT

(A) echothiophate
(B) gentamicin
(C) magnesium sulfate
(D) pyridostigmine
(E) trimethaphan

BASIC Pharmacology & Pharmacokinetics

Following a thyroidectomy, a patient develops severe dyspnea, inspiratory stridor, and cyanosis in the recovery room. On physical examination, the neck appears full. Attempts at bag-mask ventilation are unsuccessful. Immediate therapy is to

(A) administer calcium chloride
(B) perform an emergency tracheostomy
(C) open the wound and institute bag-mask ventilation
(D) return the patient to the operating room
(E) perform endotracheal intubation

When compared with a healthy 30-year-old man, which of the following respiratory parameters is decreased in an otherwise healthy 80-year-old man?

(A) Alveolar to arterial oxygen gradient
(B) Lung compliance
(C) Ratio of functional residual capacity to total lung capacity
(D) Resting tidal volume
(E) Ventilatory response to carbon dioxide

BASIC Respiratory & Critical Care

Compared with a patient without liver disease, a patient with cirrhosis will have

(A) greater accumulation of vecuronium with infusion
(B) increased unbound plasma vecuronium concentration
(C) more frequent occurrence of phase II block after succinylcholine administration
(D) prolonged elimination half-life of atracurium
(E) unchanged volume of distribution for pancuronium

BASIC Pharmacology & Pharmacokinetics

An oxygen-driven anesthesia ventilator with a bellows that ascends during exhalation develops a small hole in the bellows. Which of the following is the most likely effect?

(A) Alveolar hyperinflation
(B) Decreased inspiratory flow rate
(C) Decreased inspired oxygen concentration
(D) Increased concentration of inhalational agent
(E) Rebreathing of exhaled gases

During nitrous oxide anesthesia, which of the following expands most rapidly?

(A) Air bubble in the blood
(B) Air in the intestine
(C) Endotracheal tube cuff
(D) Pneumothorax
(E) Sulfahexafluoride bubble in the vitreal cavity

BASIC Pharmacology & Pharmacokinetics

Which of the following statements concerning isolated mitral stenosis is true?

(A) Afterload reduction increases cardiac output
(B) Pulmonary artery occlusion pressure overestimates left ventricular filling pressure
(C) Pulmonary hypertension is irreversible
(D) Tachycardia decreases the mitral transvalvular gradient
(E) Thermodilution cardiac output measurements are unreliable

ADVANCED Cardiac