Biomarkers
Homocysteine Test: The B-Vitamin Marker Tied to Heart and Brain Risk
Quick answer: A homocysteine test measures an amino acid that accumulates when B12, folate, or B6 metabolism is impaired, and…
Category: Biomarkers
What your blood tells you. Plain-English guides to biomarkers like ApoB, hs-CRP, HbA1c, and the lab numbers that actually predict long-term health.
Biomarkers
Hemoglobin Test: The Oxygen-Carrying Number on Your CBC
Quick answer: A hemoglobin test measures the concentration of hemoglobin protein in your red blood cells, reported in grams per…
Biomarkers
Hematocrit Test: The Percentage of Blood That Is Red Cells
Quick answer: A hematocrit test measures the percentage of your total blood volume occupied by red blood cells, reported as…
Biomarkers
GlycA Test: A Newer Marker for Chronic Inflammation
Quick answer: The GlycA test is an NMR-based blood test that measures inflammation by quantifying glycan residues attached to several…
Biomarkers
GGT Test: A Sensitive Liver and Oxidative Stress Marker
Quick answer: A GGT test measures gamma-glutamyl transferase, an enzyme found mainly in the liver and bile ducts. Normal GGT…
Biomarkers
FSH and LH Test: The Pituitary Signals Behind Fertility
Quick answer: An FSH and LH test measures two pituitary hormones that control reproductive function in both sexes. Follicle-stimulating hormone…
Biomarkers
Free T3 and Free T4: The Thyroid Numbers Beyond TSH
Quick answer: A free T3 and free T4 test measures the unbound, biologically active fractions of triiodothyronine and thyroxine circulating…
Biomarkers
Biomarkers for Esophageal Cancer Continue to Evolve
Biomarkers for esophageal cancer are advancing, offering new hope for earlier detection and more personalized treatment. This article explains the…
Biomarkers
Fibrinogen Test: A Clotting and Inflammation Marker Explained
Quick answer: A fibrinogen test measures the concentration of fibrinogen, a clotting protein made in the liver, in your blood.…
Biomarkers
Estradiol Test: Reading Estrogen for Women and Men
Quick answer: An estradiol test measures E2, the dominant form of estrogen circulating in your blood, and the result means…
Biomarkers
ESR (Sed Rate) Test: An Old but Useful Inflammation Marker
Quick answer: The ESR test (erythrocyte sedimentation rate, also called a sed rate test) measures how fast red blood cells…
Biomarkers
DHEA-S Test: The Adrenal Hormone Behind Energy and Aging
Quick answer: A DHEA-S test measures dehydroepiandrosterone sulfate, a steroid hormone made almost entirely by the adrenal glands. It is…