Document Detail

Undergraduate students' misconceptions about respiratory physiology.
MedLine Citation:
PMID:  10644238     Owner:  NLM     Status:  MEDLINE    
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.
J A Michael; D Richardson; A Rovick; H Modell; D Bruce; B Horwitz; M Hudson; D Silverthorn; S Whitescarver; S Williams
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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    
Department of Molecular Biophysics and Physiology, Rush Medical College, Chicago, Illinois 60612, USA.
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MeSH Terms
Educational Measurement
Ethnic Groups
Health Knowledge, Attitudes, Practice
Physiology / education*
Respiratory Physiological Phenomena*
United States

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