Anesthesia Hub -

10 Random Questions

The following hemodynamic values are obtained two hours after coronary artery bypass surgery: Cardiac index 1.7 L/min/m2; Pulm Art. Occ. Pressure 22 mmHg; MAP 60 mmHg; Urine volume 0.2 ml/kg/hr. The most appropriate management is

(A) dopamine infusion
(B) nitroprusside infusion
(C) norepinephrine infusion
(D) volume expansion
(E) observation without intervention

ADVANCED Pharmacology & Pharmacokinetics Cardiac

A computer program for hemodynamic calculations has the following input values: body surface area, arterial blood pressure, heart rate, pulmonary artery occlusion pressure, pulmonary artery pressure, and cardiac output. Each of the following values can be derived with this program EXCEPT

(A) cardiac index
(B) stroke volume index
(C) systemic vascular resistance
(D) pulmonary vascular resistance
(E) left ventricular stroke work index

BASIC Respiratory & Critical Care

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

Which of the following phenomena is primarily responsible for the decrease in core body temperature that commonly occurs during the first hour of general anesthesia?

(A) Convective heat loss from cutaneous vasodilation
(B) Decreased heat production
(C) Evaporative heat loss during skin preparation
(D) Heat loss from the respiratory tract
(E) Redistribution of core body heat to the periphery

BASIC General

A 29-year-old man who has been nasotracheally intubated for two weeks following a motor vehicle accident has a fever (39C) and a constant headache. Leukocyte count is 18,000/mm3. The most likely cause is

(A) fractured nasal septum
(B) retropharyngeal abscess
(C) maxillary sinusitis
(D) meningitis
(E) rhinovirus infection

ADVANCED Respiratory & Critical Care

Which of the following factors is the major cause of hypotension following release of the infrarenal aortic cross-clamp during aortic reconstruction?

(A) Abnormal myocardial function
(B) Decreased systemic vascular resistance
(C) Down-regulation of adrenergic receptors
(D) Increased PaCO2
(E) Suppression of the renin-angiotensin system

ADVANCED General

The initial reduction in core temperature during general anesthesia is caused by

(A) ablation of thermoregulatory vasoconstriction
(B) conductive heat loss
(C) evaporative heat loss in the respiratory tract
(D) neuromuscular blockade
(E) redistribution of heat from the core to the periphery

Which of the following statements concerning hyperkalemia after succinylcholine administration to a patient with a spinal cord injury is true?

(A) It is unlikely to occur if the lesion is located below T6
(B) It is unlikely to occur within 24 hours of the injury
(C) It is unlikely to occur more than 60 days after the initial injury
(D) It is prevented by pretreatment with small doses of a nondepolarizing agent
(E) It is decreased in magnitude by pretreatment with calcium chloride

BASIC Pharmacology & Pharmacokinetics

Compared with similar use in adults, routine use of succinylcholine in children is hazardous because of the increased risk for which of the following?

(A) Anaphylactoid reaction
(B) Phase II blockade
(C) Pseudocholinesterase deficiency
(D) Pulmonary aspiration
(E) Undiagnosed myopathy

ADVANCED Pharmacology & Pharmacokinetics Pediatric

The effect of succinylcholine is terminated at postsynaptic effector cells by

(A) binding and uptake by effector cells
(B) diffusion into capillaries
(C) hydrolysis by junctional cholinesterase
(D) hydrolysis by pseudocholinesterase
(E) spontaneous degradation to succinylmonocholine

BASIC Pharmacology & Pharmacokinetics