Days Set Up
Daily, 24 hours
Analytic Time

4 hours

MiChart Code
Testosterone Reflex LH
Soft Order Code
TSTLH

Test Updated:

Synonyms

Testosterone with reflex to Luteinizing Hormone

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

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Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Chemiluminescent Immunoassay (CLIA)

Test Usage

To automatically reflex LH (luteinizing hormone) testing when an adult male testosterone value is less than or equal to 3.00 ng/mL. No reflexive testing is performed if ordered on a female patient, or if adult male testosterone is >3.00 ng/mL.

Reference Range

Age and sex specific reference ranges provided with report.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate up to 48 hours or freeze for longer storage.

Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum

Billing Information

CPT Code
84403
Pro Fee Code
 
LOINC
2986-8 (TESTO); 10501-5 (LH)

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.