Creatinine, Urine Random details
What Creatinine, Urine Random shows
Creatinine is a waste product of muscle metabolism that passes into urine at a fairly steady rate, so its concentration in a single sample mostly reflects how concentrated or dilute that urine is. In this test it is measured alongside methylmalonic acid, a marker used to help look at vitamin B12 status, so that the methylmalonic acid result can be expressed relative to creatinine. A very low value points to dilute urine, and a high one to concentrated urine. Muscle mass and hydration affect it, and on its own it is not a measure of kidney function.
Tests that include Creatinine, Urine Random
Methylmalonic Acid (MMA) is useful to diagnose and monitor Vitamin B12 (cobalamin) deficiency, and to diagnose and monitor patients with methylmalonic acidemia.
- Methylmalonic Acid A compound that builds up when vitamin B12 is deficient. A more sensitive marker of B12 status than a B12 blood level alone.
- Creatinine, Urine Random Measures creatinine in a random urine sample, used here as a reference to adjust the methylmalonic acid result for how dilute the urine is.
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