Document Detail

Effects of syringe material and needle size on the minimum plunger-displacement pressure of arterial blood gas syringes.
MedLine Citation:
PMID:  10315159     Owner:  NLM     Status:  MEDLINE    
We determined the minimum systolic pressures required for blood to enter and begin to displace the plungers of four brands of 3-ml and 5-ml plastic and glass arterial blood gas syringes by combining samples of each syringe size with three sizes of short-beveled needles--25 gauge, 5/8"; 22-gauge, 1"; and 20-gauge, 1 1/2". We measured pressures by use of an arterial-vessel model that incorporated whole human blood and simulated the conditions of a percutaneous arterial puncture. We concluded that all the arterial blood gas syringes that we studied would self-fill in most clinical situations when they were combined with 20- or 22-gauge needles, but that 22-gauge needles with glass syringes were preferable for persons whose systolic pressures were less than 70 mm Hg, for persons in shock, and for persons undergoing CPR. Only glass 3-ml syringes should be used with 25-gauge needles, as two brands of plastic 3-ml syringes with 25-gauge needles required systolic pressures greater than 158 mm Hg and all brands of plastic and glass 5-ml syringes with 25-gauge needles required systolic pressures greater than 247 mm Hg. Because we found no clinical or statistical differences between 20- and 22-gauge needles, we do not recommend use of the larger 20-gauge needle. The syringe-needle combinations that we do recommend should negate the need for, and the potential trauma of, manual aspiration of the syringe plunger.
G M Ansel; F H Douce
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Respiratory care     Volume:  27     ISSN:  0020-1324     ISO Abbreviation:  Respir Care     Publication Date:  1982 Feb 
Date Detail:
Created Date:  1982-03-26     Completed Date:  1982-03-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7510357     Medline TA:  Respir Care     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  147-51     Citation Subset:  H    
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MeSH Terms
Blood Gas Analysis / instrumentation*
Blood Specimen Collection / instrumentation*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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