Document Detail

Foley drainage tubing configuration affects bladder pressure: a bench model study.
MedLine Citation:
PMID:  24716379     Owner:  NLM     Status:  In-Process    
A bench model was created to measure and analyze pressures in a simulated bladder and an actual urine drainage system. Fluid-filled dependent (generally U-shaped) loops in the urine drainage tubing generated back-pressure (in units of cm H2O), directly related to the difference in fluid meniscus heights (in units of cm) across the dependent loop that interfered with emptying of the simulated bladder. If the results obtained with a simulated bladder occur in actual bladders with indwelling urinary catheters, retained urine volume (that can promote urinary tract infection) will increase with larger differences in meniscus heights across the dependent loop due to increased back-pressure. Dependent loops in urine drainage tubing should be avoided. If the dependent loops cannot be avoided or a configuration without dependent loops cannot be maintained, they should be routinely emptied of urine, especially if the bag-side meniscus is higher than the bladder-side meniscus.
Wilhelm K Schwab; David E Lizdas; Nikolaus Gravenstein; Samsun Lampotang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Urologic nursing     Volume:  34     ISSN:  1053-816X     ISO Abbreviation:  Urol Nurs     Publication Date:    2014 Jan-Feb
Date Detail:
Created Date:  2014-04-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8812256     Medline TA:  Urol Nurs     Country:  United States    
Other Details:
Languages:  eng     Pagination:  33-7     Citation Subset:  N    
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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