Posted Date
Effective Date
Update Type
Test Down or Delayed
CPT Code
85390, 88348
Order Code
PTEM
TEST DELAY
Platelet Transmission Electron Microscopic Study, Whole Blood
Order Code: PTEM
Fee Code: AA496, AA497 (CPT 85390, 88348)
LOINC: 79768-8
Reference Lab: Mayo PTEM
Effective June 8, 2026, Mayo Clinic Laboratories test, PTEM results are currently delayed beyond the published turnaround time of 12 days due to an increased volume of testing requests. The duration of this delay is expected to exceed 30 days. Specimens are stabilized and processed as they are received.