Anesthesia Hub -

10 Random Questions

In a patient who is to undergo clipping of a cerebral aneurysm, an advantage of isoflurane over nitroprusside for induction of hypotension is

(A) better maintenance of cardiac output
(B) better maintenance of cerebral blood flow
(C) greater decrease in cerebral oxygen consumption
(D) greater decrease in afterload
(E) more rapid titration of systemic blood pressure

ADVANCED Pharmacology & Pharmacokinetics Neuro

The EEG of a patient undergoing anesthesia with high-dose fentanyl would most likely show

(A) the same pattern seen with enflurane 0.5 MAC
(B) cessation of low-frequency activity
(C) accentuation of high-frequency activity
(D) uniform depression of all frequencies
(E) low-frequency, high-amplitude activity

Which of the following statements concerning the pharmacokinetics of local anesthetics is true?

(A) Decreased molecular weight is associated with decreased incidence of allergic reactions
(B) Decreased protein binding is associated with decreased systemic toxicity
(C) Increased ionization is associated with increased placental transfer
(D) Increased lipid solubility is associated with faster onset
(E) Presence of an ester linkage is associated with increased duration of action

BASIC Pharmacology & Pharmacokinetics

Deliberate hypothermia and circulatory arrest is planned for clipping of a giant basilar artery aneurysm. Which of the following statements is true?

(A) Administration of a muscle relaxant slows the cooling process
(B) Anesthesia is not required if body temperature is below 31°C
(C) Decreasing body temperature below the level at which the EEG is isoelectric further decreases cerebral metabolic rate for oxygen
(D) Sinus bradycardia during cooling results from increased intracranial pressure
(E) T-wave inversion during cooling indicates myocardial ischemia

ADVANCED Neuro

A healthy, but obese, 110-kg woman is scheduled for gastric stapling. Compared with that required at her ideal weight, the dose of thiopental required for anesthetic induction would likely be increased because of changes in

(A) blood volume
(B) muscle mass
(C) circulation time
(D) body fat
(E) metabolic rate

BASIC Pharmacology & Pharmacokinetics

If administered prior to induction of anesthesia, which of the following drugs is most likely to cause tachycardia?

(A) Fentanyl
(B) Meperidine
(C) Midazolam
(D) Morphine
(E) Sufentanil

Which of the following statements concerning air embolism during intracranial operations is true?

(A) It does not occur in supine patients
(B) It is prevented by positive end-expiratory pressure
(C) It is confined to the right side of the heart and the pulmonary vasculature
(D) It is detectable by measurement of end-tidal nitrogen
(E) It is most efficiently treated by aspiration from a pulmonary artery catheter

ADVANCED Neuro

Which of the following drugs used to produce or reverse muscle relaxation has the greatest prolongation of action in a patient with end-stage renal disease?

(A) Atracurium
(B) Neostigmine
(C) Pancuronium
(D) Succinylcholine
(E) Vecuronium

An infant is delivered by forceps following labor in which variable decelerations were noted. Amniotic fluid was clear. Initial evaluation shows a cyanotic, limp infant with a heart rate of 80 bpm, poor respiratory efforts, and grimacing in response to suctioning. The most appropriate method of resuscitation for this newborn is

(A) vigorous tactile stimulation
(B) bag and mask ventilation with oxygen
(C) immediate endotracheal intubation
(D) administration of sodium bicarbonate 1 mEq/kg
(E) volume expansion with normal saline solution 10 mL/kg

ADVANCED Pediatric

Which of the following findings is most likely in an 85-kg 30-year-old man who is breathing spontaneously through 6-mm endotracheal tube?

(A) Decreased PetCO2
(B) Decreased SpO2
(C) Increased minute ventilation
(D) Increased respiratory rate
(E) Increased tidal volume

BASIC Respiratory & Critical Care