Browsing Tag

February 2022

Advanced Technology Laboratory, Molecular Diagnostics

Test Discontinuation: MTHFR C677T

MTHFR C677T [LAB7390], the methylenetetrahydrofolate reductase mutation analysis, is being discontinued as an obsolete test.

The American College of Medical Genetics (ACMG) and American College of Obstetricians and Gynecologists (ACOG) have determined that MTHFR C677T testing has minimal clinical utility. Current testing recommendations indicate that this test should not be ordered as part of a routine evaluation for thrombophilia or adverse pregnancy outcomes. Continue Reading

Hematology

Peripheral Blood Smear Reminder

As of January 12, 2016, pathologist review of peripheral blood smear ordered without accompanying CBC with differential will reflex to adding on a CBC and/or differential in the laboratory. Blood specimens that do not have a slide prepared need to be less than 6 hours old for a pathologist review to be added on.

This is due to the fact that older blood does not smear well and morphology is compromised, especially red cell morphology. This allows for a complete documentation of the patient’s CBC and differential findings in the electronic medical record and standardizes our process among the regional hospitals.

Any questions concerning Peripheral Blood Smear reflexes should be directed to Dr. Jennifer Stumph, Director of Hematology.

Chemistry, Test Utilization

Ammonia, NH3

As of March 1, 2016, Spectrum Health Laboratory, Grand Rapids, will no longer draw or send a courier for outpatient Ammonia testing (#8074). If outpatient Ammonia testing is needed, the patient must be collected at the 35 Michigan Draw Site. If outpatient Ammonia testing is needed and the patient cannot be drawn at the 35 Michigan Draw Site, approval must be obtained from Dr. David Alter or the Clinical Pathologist on-call, prior to ordering the test.

There will be no changes to inpatient collection. Note: Inpatients are patients who have been admitted to a hospital in the Medical Center (HDVCH, Butterworth, and Meijer Heart Center) or Blodgett Hospital.

Any questions concerning these changes may be directed to the Pathology Department using the Contact Us link above.