| Undergraduate students' misconceptions about respiratory physiology. | |
| | |
MedLine Citation:
|
PMID: 10644238 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Approximately 700 undergraduates studying physiology at community colleges, a liberal arts college, and universities were surveyed to determine the prevalence of our misconceptions about respiratory phenomena. A misconception about the changes in breathing frequency and tidal volume (physiological variables whose changes can be directly sensed) that result in increased minute ventilation was found to be present in this population with comparable prevalence (approximately 60%) to that seen in a previous study. Three other misconceptions involving phenomena that cannot be experienced directly and therefore were most likely learned in some educational setting were found to be of varying prevalence. Nearly 90% of the students exhibited a misconception about the relationship between arterial oxygen partial pressure and hemoglobin saturation. Sixty-six percent of the students believed that increasing alveolar oxygen partial pressure leads to a decrease in alveolar carbon dioxide partial pressure. Nearly 33% of the population misunderstood the relationship between metabolism and ventilation. The possible origins of these respiratory misconceptions are discussed and suggestions for how to prevent and/or remediate them are proposed. |
| | |
Authors:
|
J A Michael; D Richardson; A Rovick; H Modell; D Bruce; B Horwitz; M Hudson; D Silverthorn; S Whitescarver; S Williams |
Related Documents
:
|
9011618 - Effect of co2 on the metabolic and ventilatory responses to ambient temperature in cons... 6800988 - Regulation of paco2 and ventilation in humans inspiring low levels of co2. 15333528 - End tidal carbon dioxide as a predictor of the arterial pco2 in the emergency departmen... 6229508 - Breathing pattern of kittens during hypoxia. 18218918 - Effect of airways constriction on exhaled nitric oxide. 21647718 - End-inspiratory rebreathing reduces the end-tidal to arterial pco(2) gradient in mechan... |
Publication Detail:
|
Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
|
Title: The American journal of physiology Volume: 277 ISSN: 0002-9513 ISO Abbreviation: Am. J. Physiol. Publication Date: 1999 Dec |
Date Detail:
|
Created Date: 2000-01-19 Completed Date: 2000-01-19 Revised Date: 2008-11-21 |
Medline Journal Info:
|
Nlm Unique ID: 0370511 Medline TA: Am J Physiol Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: S127-35 Citation Subset: IM |
Affiliation:
|
Department of Molecular Biophysics and Physiology, Rush Medical College, Chicago, Illinois 60612, USA. jmichael@rush.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Educational Measurement Ethnic Groups Female Health Knowledge, Attitudes, Practice Humans Male Physiology / education* Questionnaires Respiratory Physiological Phenomena* Students* United States Universities |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Predictors of success in undergraduate human physiology.
Next Document: Basis for presentation of acid-base in two dimensions.