| Test Name: | Platelet Count |
| Epic Order Code: | LAB301 | | |
| CPT Code: | 85049 | | |
| Specimen(s) Type: | Whole blood; 2.0 mL |
| Acceptable Container(s): |   Tops are purple (lavender) and light blue. |
| Testing Schedule: | 24 hours/day, 7 days/week |
| Turn Around Time: | STAT: 1 hour | | |
| | Routine: 4 hours | | |
| Collection Information: | No special patient preparation is required. Obtain specimen by standard collection procedures. |
| Transport Information: | Deliver to lab immediately. All specimens must be signed into the laboratory. |
| Reference Clients: | If unable to deliver to the lab immediately, store and transport specimen at 2-8° C. Specimen must be received in the lab within 24 hours. |
| Causes for Rejection: | Improperly labeled, incorrect container, contaminated, insufficient quantity, incorrect/delay in transport, grossly hemolyzed or lipemic, clotted. |
| Reference Range: | Age | Male TH/mm3 | Female TH/mm3 |
| | 0 - 14 days: | 218 - 419 | 144 - 449 |
| | 15 - 30 days: | 248 - 586 | 279 - 571 |
| | 31 - 60 days: | 229 - 562 | 331 - 597 |
| | 61 - 180 days: | 244 - 529 | 247 - 580 |
| | 181 days - 2 yrs: | 206 - 445 | 214 - 459 |
| | 2 - 6 yrs: | 202 - 403 | 189 - 394 |
| | 6 - 12 yrs: | 206 - 369 | 199 - 367 |
| | 12 - 18 yrs: | 175 - 332 | 194 - 345 |
| | > 18 yrs: | 150 - 400 | 150 - 400 |
| | Critical: <30 or > 700 TH/mm3 |
| Additional Information: | Collect in Blue top tube if platelet clumping or EDTA clumper is suspected. |