Platelet Count
| Abbrev Code: | PLT | ||
| Order Code: | LAB301 | Order Name: | Platelet Count |
| Synonyms: | Thrombocyte Count; PLTS | ||
| CPT Codes: | 85049 x1 | ||
| Turnaround Time: | Performed and reported 24 hours/day. | ||
| Special Instructions: |
For patients with platelet clumping, draw both a light blue (Na citrate) tube and a purple (EDTA) tube.
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Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2-3 mL EDTA tube or 0.5 mL in an EDTA microtainer (do not fill more than 0.5 mL) |
| Minimum\Peds Volume: | 1 mL EDTA tube or 0.3 mL in an EDTA microtainer |
| Container: | Purple (EDTA) |
| Collection Instructions: | Immediately mix specimen 10 times by gentle inversion. |
| Causes for Rejection: | Clotted specimen or platelet clumping. |
Processing and Shipping
| Specimen Processing: | Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. If more than 24 hours is required for transport, 2 unstained whole blood smears must accompany whole blood EDTA specimen. |
| Test Performed at or Referral Lab | Hematology (Range, UMMC-East Bank, Lakes, Ridges, Northland, Southdale, UMMC/UMMCH-West Bank, Clinics, M Health Clinic and Surgery Center, Grand Itasca, St. Joseph's, St. John's, Woodwinds) |
Interpretive
| Critical Range: |
Less than 50, or greater than 1000 (x109/L)
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| Reference Range: |
150-450
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| Use: | Evaluation, diagnosis and/or follow-up of bleeding disorders, drug induced thrombocytopenia, idiopathic thrombocytopenia purpura (acute or chronic), disseminated intravascular coagulation, leukemia, and in the therapeutic management of malignant diseases. Investigation of purpura, petechiae. |
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