William J. Elliott, MD, PhD
To the Editors: Krumholz and colleagues (1) recently reported no differences between "false-positive" blood cultures injected into the culture medium, using either the original phlebotomy needle or a new, sterile needle. Unfortunately, the rates of such "false-positive" cultures were so low that their recommendations not to "switch" needles may not be based on a sufficient number of patients to support their conclusions. The group with "switched" needles incurred only a 1.3% rate of false-positive cultures, whereas the group using the original needles had a 1.55% false-positive rate.
Because of the very low occurrence rates of false-positive cultures, the well-known nomograms
Learn more about subscription options.
Register Now for a free account.
Elliott WJ. Switching Phlebotomy Needles. Ann Intern Med. 1991;114:94–95. doi: 10.7326/0003-4819-114-1-94
Download citation file:
Published: Ann Intern Med. 1991;114(1):94-95.
Results provided by:
Copyright © 2017 American College of Physicians. All Rights Reserved.
Print ISSN: 0003-4819 | Online ISSN: 1539-3704
Conditions of Use
This PDF is available to Subscribers Only