Publication Date

1999

Document Type

Dissertation/Thesis

First Advisor

Johnson, Rebecca A. (Rebecca Ann)

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Nursing

LCSH

Cardiovascular system--Surgery; Respiratory agents; Analgesia

Abstract

Analgesia is commonly withheld from cardiovascular surgical patients soon to be withdrawn from mechanical ventilation to prevent respiratory depression that can postpone extubation. The effects o f analgesia on respiration have been inadequately studied. In this study, weaning parameter measurements were obtained to determine the respiratory impact o f a low dose o f intravenous morphine in cardiovascular surgical patients ready to be weaned from the ventilator. A pretest-posttest, quasi-experimental, repeated measures design was used. The conceptual model consisted o f the physiology o f respiration and intrinsic and extrinsic factors affecting respiration. Eleven alert subjects who met two o f five weaning parameter criteria received 1 to 5 mg o f morphine. Weaning parameters were measured before the intervention and 15 and 30 minutes afterward. Using an alpha level o f 0.05, dependent paired t tests were calculated to detect changes due to the morphine. As hypothesized, low dose morphine administration was not found to negatively influence weaning parameters.

Comments

Includes bibliographical references (pages [66]-69)

Extent

viii, 100 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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