Hematology · Laboratory Medicine
Citrate-Corrected Platelet Count calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
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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Formula inputs
- Measured platelet count (×10⁹/L)Accepted range: 1 to 2000
- Citrate dilution fraction (fraction)Accepted range: 0.05 to 0.15
Primary source
Schmaier AH, Smith CA. Laboratory evaluation of hemostasis and thrombosis. In: Hoffman R et al., Hematology. DOI: 10.1016/B978-0-323-45731-6.00015-3. PMID: 30266112. 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. (2018)
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