Tests
Rheumatoid Factor (RF) Test
A rheumatoid factor (RF) test checks a sample of your blood for rheumatoid factor, a protein made by the immune system .
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Tests
A rheumatoid factor (RF) test checks a sample of your blood for rheumatoid factor, a protein made by the immune system .
Tests
The determination of the number of stacking red blood cells present in a blood sample.
Tests
This test measures the amount of salicylates in the blood. Salicylates are a type of drug found in many over-the-counter and prescription medicines. These can include:
Article
Research record from Animals (Basel), 2026-06-24. PMID 42450657.
Article
Research record from Sci Rep, 2026-06-25. PMID 42350534.
Indicators
A nonmetallic chemical element found in trace amounts in human body. Selenium primarily occurs in vivo as selenocompounds, mostly selenoproteins such as glutathione peroxidase and thioredoxin reductase (enzymes responsible for detoxification). Alone or in combination with Vitamin E, selenocompounds act as antioxidants. These agents scavenge free radicals; prevent blood clots by inhibiting platelet aggregation; strengthen the immune system; and have been shown, in some instances, to inhibit chromosomal damage and mutations. Exhibiting chemopreventive activity, selenocompounds also inhibit the induction of protein kinase C.
Article
Research record from J Med Virol, 2026-04-01. PMID 41944344.
Tests
The determination of the amount of cancer antigen 125 present in a blood serum sample.
Tests
An SHBG blood test measures the level of a protein called sex hormone binding globulin (SHBG) in a sample of your blood. SHBG is made mostly in your liver. It binds (attaches) to sex hormones such as testosterone and estrogen and helps control how much of these hormones are active in your body.
Tests
A blood test that determines the types of hemoglobin that an individual expresses. Detection of hemoglobin S indicates that the person has sickle cell trait or sickle cell disease.
Article
Research record from J Anal Toxicol, 2026-04-01. PMID 40910905.
Tests
This test looks for smooth muscle antibodies (SMAs) in a sample of your blood. High levels of SMAs are usually a sign of a chronic (long-lasting) liver condition called autoimmune hepatitis .