Lab Test

Electron Microscopy (Ultrastructural) Study of Platelets

Please contact the Electron Microscopy Laboratory for information regarding this test.


  • Specimens must ONLY be collected at the Royal Oak Hospital Campus. Specimens CANNOT be collected at any other Beaumont Laboratory drawsite, nursing home, or Outreach office.
  • Specimens must be drawn before 11:00 a.m., Monday through Friday, excluding holidays. 
  • Please call the Electron Microscopy Laboratory PRIOR to specimen collection at (248) 898-9037.
  • Electron Microscopy Laboratory staff must be spoken with prior to collection.

Specimen Collection Criteria

Collect: Two Lavender-top EDTA tubes. (Min: 0.5 mL each tube)

  • Contact the Electron Microscopy Laboratory PRIOR to specimen collection. EM staff will pick up the specimen. Include a copy of the requisition with the specimen.
  • Label specimens properly with the patient's name, medical record number, physician's name, hospital name, date and time of specimen.

Rejection Criteria

  • Improper labeling, inadequate information, improper collection.
  • Delay of more than 15 minutes after collection.
  • Specimens sent through the pneumatic tube system.
  • Specimen collected on weekend or holiday and specimens drawn after 11:00 a.m.


Monday - Friday, 7:00 a.m. - 11:00 a.m., excluding holidays.
Due to the technical manipulation required, specimen diagnostic results will take approximately 2 weeks.

Test Methodology

Routine methods applying to transmission electron microscopy.


Interpreted by: MD/DO, Electron Microscopy, Pathologist, or Hematopathologist.

Clinical Utility

Electron microscopy allows direct visualization of platelet ultrastructure. Platelets can be evaluated for alpha and delta granule content, mitochondria, and other organelles. Electron microscopy is the most specific method for diagnosing storage pool deficiency.

CPT Code

CPT code(s) may vary between specimens. Please contact the Laboratory for more information.

Test Codes

Please contact the Electron Microscopy Laboratory for information regarding this test.

Last Updated


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This directory currently reflects information only for specimens collected and/or processed at the
Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.