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This is a single-marker test measuring 17-hydroxyprogesterone.

This is a single-marker test measuring iodine.

This test detects variations in the MTHFR gene. Reduced enzyme activity of methylenetetrahydrofolate reductase (MTHFR) is a genetic risk factor for hyperhomocysteinemia, particularly when serum folate levels are low.

This is a single-marker test measuring total IgA.

This is a single-marker test measuring lithium.

This test measures total IgA, IgG, and IgM antibodies.

This test is used to detect antibodies specific for B. burgdorferi. This test is intended as the second step in testing serum samples found to have been equivocal or positive using an ELISA or IFA test.

The Testosterone, Free, Direct with Total Testosterone test measures both the free (unbound) and total testosterone levels in the blood using liquid chromatography-tandem mass spectrometry (LC/MS-MS). This comprehensive assessment is valuable for evaluating androgen status in patients with symptoms of hormonal imbalance, such as infertility, sexual dysfunction, or irregular menstrual cycles. It helps differentiate between primary and secondary hypogonadism and is also useful for monitoring testosterone replacement therapy.

This is a single-marker test measuring glutathione.

QuantiFERON®-TB Gold Plus is an indirect test for M. tuberculosis infection. It is intended to be used in conjunction with risk assessment, radiography, and other medical and diagnostic evaluations.