Item Value
Test name Platelet Count
Available Stat? Yes
Turn around times STAT 1 hour, Routine 4 hours
In House Availability Test available 24 hours per day 7 days per week
Performed by Parnassus, Mission Bay & Mt. Zion Hematology
Normal range 140-450 x109/L
Container type Lavender top
Amount to Collect 1 mL blood
Collection Instructions Collect the specimen in a blue top (citrate) tube if platelets are repeatedly found to clump in samples collected in a lavender top (EDTA).

When platelets clump in both EDTA and citrate tubes, and the count is < 100 and a physician specifically orders the procedure, a count will be run on a fingerstick sample collected directly into a Thrombo-tic¨.
Sample type EDTA whole blood

If you have additional questions regarding this test, please call: 415-353-1667