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Platelet Count

Important Note

If a citrated platelet count is ordered, draw not only an EDTA (CBC) tube, but also draw a blue Sodium Citrate tube. DO NOT spin the Sodium Citrate tube. Send both tubes to hematology, along with a copy of the requisition. 

eD-H Order Code

LAB301

Specimen Collection Information

Specimen Minimum Test Volume Container Special Handling
Blood 0.5 ML
Neo/Pedi
Blood
Neonatal/Pediatric
Minimum Volumes

Specimen Transport Temperature

Ambient, stable for 24 hours.

Reference Ranges / Critical Values

Assay Gender Age Range Normal Range Critical Values Units
Immature Plt % All 0 Minutes – 150 Years 0.0 -7.4 %
Platelet All 0 Minutes – 3 Days 85 -475 <20 x10(3)/mcL
3 Days – 18 Years 145 -370 <20 x10(3)/mcL
18 Years – 150 Years 145 -357 <20 x10(3)/mcL

Specimen Stability

48 hours

Additional Specimen Instructions

Acceptable Specimen Tubes

Lavender 4 mL tube

Lavender 2 mL tube

Lavender Microtainer MAP Tube

Properly filled tube required.

Interpretive Data

Assay Display Interpretive Data
Immature Plt % Limitation of the Immature Platelet Fraction (IPF)-May be less reliable when the platelet count is less than 10×103/uL due to statistical imprecision. The IPF value provides an assessment of the Bone Marrow production status. It is useful in differentiating Thrombocytopenia caused by platelet destruction/consumption versus decreased production. It also helps to determine the imminent release of platelets and can be therefore a helpful parameter in Chemotherapy and Bone marrow transplant patients. ELEVATED IPF value: · When the bone marrow is in a state of over production such as when increased destruction and consumption are the underlying issue. · When the marrow is recovering post chemotherapy or bone marrow transplant. LOW to NORMAL IPF value: · When the bone marrow in not responding and is in a decreased state of production. References: Sysmex America Inc. The Clinical Value of the Immature Platelet Fraction (IPF) in Cell Recovery Document Number 10-1143 06/2011 Sysmex America Inc. The Role of the Immature Platelet Fraction (IPF) in the Differential Diagnosis of Thrombocytopenia Document MKT-10-1209 V05/12/14 P05/14

Day(s) Performed

Monday through Sunday; continuously

CPT(s)

85049

Performing Lab Section

Hematology