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Test Code PTEM Platelet Transmission Electron Microscopic Study, Whole Blood

Important Note

CMH COLLECTION: This test has restrictions on date and time for collection

  • Can only collect Monday- Wednesday 6:00 a.m.- 2:00 p.m. Do not collect on a holiday or the day before a holiday.
  • Adele Hall Lab must receive by 2:30 p.m.
  • Collection site must be dry, mix tubes gently, hand deliver to lab


Shipping 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 is 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.


Children's Mercy Hospital Note:

CMH COLLECTION: 3mL blood in Yellow vacutainer (ACD, solution A or solution B)

Specimen Minimum Volume

3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole Blood ACD Ambient 72 hours

Useful For

Diagnosing platelet disorders

Reject Due To

Gross hemolysis Reject
Gross lipemia OK

Day(s) Performed

Monday through Friday

Report Available

10 days

Reporting Name

Platelet TEM, B

Reference Values

Mean dense granules/platelet: ≥1.2

Method Name

Transmission Electron Microscopy

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

85390

88348