Laboratory retention has been updated for the following tests. Laboratory retention outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded.
Emergency Medicine
The Spectrum Health Regional Laboratory Hematology Department has updated rejection criteria for the orderables, Cell Count w/ Differential, Body Fluid and Cell Count, Body Fluid. Spectrum Health Hematology will no longer perform cell counts on specimens which are not from a sterile body cavity (e.g. wound drainage, abscess, pus, etc.). Unacceptable specimens submitted to the Hematology Department for cell counts will not be performed and the test will be credited.
Reference Range Update – OB Magnesium, Blood Level
Effective immediately, the OB Magnesium (Mg) reference range has been updated from 1.6 to 2.5 mg/dL to 4.8 to 8.0 mg/dL, to reflect the correct therapeutic range for patients receiving magnesium sulfate therapy. The non-OB magnesium reference range is unchanged.
Please direct questions and inquiries to Dr. Jennifer Stumph via the Contact Us link above.
TEST INFORMATION
OB Magnesium, Blood Level – Epic code #LAB3400, Interface code #11703, CPT code #83735
Reminder: Choosing Wisely Recommendations for Blood Products
As part of the Choosing Wisely campaign, the American Association of Blood Banks (AABB) released five recommendations for transfusions:
Helicobacter pylori Diagnosis – Serologic Testing is no Longer Recommended
Overview
Clinical guidelines no longer recommend serologic testing as a method for the diagnosis of H. pylori infection. Rather than IgG serology testing, other non-invasive testing methods such as H. pylori stool antigen and urea breath tests may be used to both diagnose and monitor response to therapy for H. pylori infection. In anticipation of an increase in stool antigen testing, currently a reference lab send-out test, Spectrum Health Regional Laboratory (SHRL) will be implementing this test as of October 29, 2018. By offering this test in-house, results will typically be available one day faster than present state.
Chlamydia and Gonococcus Testing on Pediatric Patients
Spectrum Health Regional Laboratory is not validated to perform Chlamydia and Gonococcus testing on pediatric patients under the age of 14 years old. Testing for these patients must be sent to a reference laboratory. Please order a Reference Miscellaneous Test (#LAB848) and indicate complete test name when ordering.
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.