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J Thromb Haemost. 2007 Apr;5(4):855-8. Epub 2007 Jan 12.

Preanalytical conditions that affect coagulation testing, including hormonal status and therapy.

Author information

1
Department of Molecular Medicine and Surgery, Coagulation Research, Karolinska University Hospital, Stockholm, Sweden.

Abstract

Preanalytical conditions, be they due to the individual's physiologic state or to exogenous factors, can affect coagulation factors, in either a transient or a persistent manner, and need to be considered in laboratory testing. These conditions include physical and mental stress, diurnal variation, hormone levels and posture at the time of blood drawing. While testing of these factors has not been exhaustive and some results are conflicting, guidelines for testing conditions can be given.

PMID:
17229046
PMCID:
PMC1890816
DOI:
10.1111/j.1538-7836.2007.02401.x
[Indexed for MEDLINE]
Free PMC Article
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