Lab Test Library
Educational explanations of common laboratory tests. Learn what each test measures, why it may be ordered, and how results are generally reported.
17 tests found
HbA1c
Reflects average blood glucose over the preceding several months.
Fasting Glucose
Measures blood glucose after a period of fasting.
LDL Cholesterol
A type of lipoprotein commonly assessed in cardiovascular risk evaluation.
HDL Cholesterol
Often referred to as "good cholesterol" — carries cholesterol back to the liver.
Triglycerides
A type of fat found in the blood, related to energy storage.
ApoB
A protein found on several lipoprotein particles, used in cardiovascular risk assessment.
Lipoprotein(a)
A genetically determined lipoprotein particle associated with cardiovascular risk.
Creatinine
A waste product used to assess kidney function.
eGFR
Estimated glomerular filtration rate — a calculated measure of kidney function.
ALT
An enzyme that may indicate liver cell health.
AST
An enzyme found in liver and other tissues.
TSH
Thyroid-stimulating hormone — regulates thyroid function.
Vitamin D
A fat-soluble vitamin important for bone health and immune function.
Vitamin B12
A water-soluble vitamin essential for nerve function and red blood cell production.
Ferritin
A protein that stores iron in the body.
Hemoglobin
A protein in red blood cells that carries oxygen.
CRP
C-reactive protein — a marker of inflammation in the body.