Anesthesia Hub -

10 Random Questions

Compared with adults, neonates are more likely to become hypoxemic following anesthesia and extubation because of a relatively

(A) higher rate of oxygen consumption
(B) greater sensitivity to neuromuscular blockade
(C) larger Vd/Vt ratio
(D) lower blood pressure
(E) smaller functional residual capacity

ADVANCED Pediatric

Compared with healthy persons, patients with myasthenic (Eaton-Lambert) syndrome have increased

(A) resistance to vecuronium
(B) response to neostigmine during reversal of muscle paralysis
(C) sensitivity to succinylcholine
(D) susceptibility to development of malignant hyperthermia
(E) weakness with repetitive activity

Nine months after sustaining an injury to the left forearm, a 30-year-old woman has diffuse, burning pain on the anterior aspect of the forearm and posterior aspect of the hand and discoloration of the skin in the affected areas. The patient should be informed that

(A) if left untreated, muscle atrophy may develop in the involved limb
(B) if left untreated, the pain will remain well localized
(C) physical therapy is not indicated
(D) the symptoms are directly related to the severity of the initial injury
(E) the symptoms are most likely secondary to underlying peripheral vascular disease

ADVANCED Regional & Pain

Which of the following statements concerning the check valve of the common gas outlet on an anesthesia gas machine is true?

(A) It prevents backflow into vaporizers
(B) It prevents delivery of a hypoxic mixture
(C) It prevents rebreathing
(D) It is located downstream from the oxygen flush valve
(E) It is required for proper functioning of the proportioning system

BASIC Equipment & Physics

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

Which of the following factors is LEAST likely to affect serum ionized calcium concentration following blood transfusion?

(A) Age of blood transfused
(B) Amount of blood transfused
(C) Body temperature
(D) Serum pH
(E) Rate of transfusion

BASIC Transfusions & Fluids

Which of the following statements concerning the cardiovascular effects of intravenous bupivacaine is true?

(A) Intralipid is effective in treating bupivacaine-induced ventricular arrhythmias
(B) Cardiovascular toxicity is decreased during pregnancy
(C) Cardiovascular toxicity occurs at lower blood levels than central nervous system toxicity
(D) Systemic vascular resistance is unchanged
(E) The rate of impulse conduction through the heart is increased

BASIC Pharmacology & Pharmacokinetics Regional & Pain

The most beneficial effect of continuous positive airway pressure in a newborn with respiratory distress syndrome is

(A) increased functional residual capacity
(B) decreased airway resistance
(C) promotion of surfactant formation
(D) increased alveolar PO2
(E) maintenance of functional closure of the foramen ovale

ADVANCED Pediatric

Nonsteroidal analgesics such as aspirin decrease pain by

(A) decreasing axonal transmission of pain stimuli through a local anesthetic mechanism
(B) directly competing with substance P for receptor occupancy
(C) inhibiting enzymatic breakdown of met-enkephalin
(D) inhibiting production of prostaglandin E2
(E) potentiating the action of endorphin in the substantia gelantinosa of the spinal cord

BASIC Pharmacology & Pharmacokinetics

A 157 cm (5 ft 2 in), 180-kg, 40-year-old woman has a PaO2 of 65 mmHg, a PaCO2 of 38 mmHg, and a pH of 7.43 while breathing room air preoperatively. The most likely cause of these values is

(A) decreased hypoxic ventilatory drive
(B) higher than normal oxygen extraction from blood
(C) lower than normal cardiac output
(D) lower than normal functional residual capacity
(E) polycythemia

BASIC Respiratory & Critical Care