Document Detail

Umbilical catheters and arterial blood pressure monitoring.
MedLine Citation:
PMID:  3831265     Owner:  NLM     Status:  MEDLINE    
The natural frequencies, damping coefficients, and accuracies of umbilical artery catheters were determined. The damping coefficients for the 3.5, 5.0, and 8.0 French catheters were 0.40 +/- 0.04 (mean +/- SD), 0.42 +/- 0.05, and 0.19 +/- 0.02, respectively. The natural frequencies were 24.2 +/- 3.2 Hz (mean +/- SD), 18.4 +/- 3.5 Hz, and 26.8 +/- 2.9 Hz, respectively. Measurements obtained with 3.5 and 8.0 French catheters were within 6% of the reference pressure at all pressures and rates tested. With the 5.0 French catheter, however, error greater than 10% from the reference pressure occurred when the rate was 200 pulses per minute or greater and the applied maximum pressure was 100 mm Hg or more.
S R Goodwin; S A Graves; J van der Aa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of clinical monitoring     Volume:  1     ISSN:  0748-1977     ISO Abbreviation:  J Clin Monit     Publication Date:  1985 Oct 
Date Detail:
Created Date:  1986-05-05     Completed Date:  1986-05-05     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8506707     Medline TA:  J Clin Monit     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  227-31     Citation Subset:  IM    
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MeSH Terms
Blood Pressure*
Blood Pressure Determination / instrumentation*
Catheterization / instrumentation*
Evaluation Studies as Topic
Monitoring, Physiologic / instrumentation
Umbilical Arteries / physiology*

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