Haematology · Laboratory Medicine
Citrate-Corrected Platelet Count calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 1–2000 ×10⁹/L
Allowed range: 0.05–0.15 fraction
Standard citrated tubes dilute whole blood by approximately 9.1% (fraction 0.091) unless a different collection ratio is documented.
Result
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Clinical inputs
- Measured platelet count (×10⁹/L)Accepted range: 1 to 2000
- Citrate dilution fractionAccepted range: 0.05 to 0.15
Primary source
Lanclume V et al. Identification and validation of a factor of commutability between platelet counts performed on EDTA and citrate. Int J Lab Hematol. DOI: 10.1111/ijlh.12620. PMID: 28132944. Scope: platelet counts in citrate-anticoagulated specimens are corrected for anticoagulant dilution by dividing the measured count by (1 − dilution fraction), commonly ~0.091 for standard 9:1 blood-to-anticoagulant collection. (2017)
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