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HelpTest ID PTEM Platelet Transmission Electron Microscopic Study, Whole Blood
Useful For
Diagnosing platelet disorders
Special Instructions
Specimen Type
Whole Blood ACDShipping Instructions
Send specimen Monday through Wednesday.
Specimens must be received in testing laboratory within 72 hours of collection. Ship specimen overnight in an Ambient Shipping Box-Critical Specimens Only (T668) following the instructions in the mailer.
Necessary Information
Platelet Esoteric Testing Patient Information is required. Testing may proceed without the patient information, however, the information aids in providing a more thorough interpretation. Ordering providers are strongly encouraged to fill out the form and send with the specimen.
Specimen Required
Patient Preparation:
Fasting: 8 hours, preferred but not required
Supplies: Ambient Shipping Box-Critical Specimens Only (T668)
Collection Container/Tube:
Preferred: Yellow top (ACD, solution B)
Acceptable: Yellow top (ACD, solution A)
Specimen Volume: 6 mL
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood ACD | Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
Reference Values
Mean dense granules/platelet: ≥1.2
Day(s) Performed
Monday through Friday
Report Available
10 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
85390
88348
Forms
1. Platelet Esoteric Testing Patient Information is required.
2. If not ordering electronically, complete, print, and send a Coagulation Test Request (T753) with the specimen.