Lab test explainers
Plain-English guides to the most common values on a lab report — what each test measures, why it matters, and what high or low results can suggest. Educational, not diagnostic.
Lipid Panel
LDL Cholesterol
Understand what your LDL cholesterol result means in plain language, typical reference ranges, and questions to bring to your doctor.
HDL Cholesterol
What your HDL (“good”) cholesterol result means in plain language, typical ranges, and questions to ask your doctor.
Triglycerides
Understand your triglycerides result in plain language, what high or low can mean, and questions to bring to your doctor.
Total Cholesterol
What your total cholesterol number means in plain language, typical ranges, and questions to ask your doctor.
Diabetes
Thyroid
Vitamins
Vitamin D
Understand your vitamin D result in plain language, typical ranges, and questions to ask your doctor.
Vitamin B12
What your vitamin B12 result means in plain language, typical ranges, and questions to bring to your doctor.
Ferritin
Understand your ferritin (iron storage) result in plain language, typical ranges, and questions for your doctor.
Iron (Serum Iron)
What your serum iron result means in plain language, typical ranges, and questions to ask your doctor.
Kidney
Creatinine
Understand your creatinine result in plain language — what this kidney marker reflects and questions for your doctor.
eGFR (Estimated Glomerular Filtration Rate)
What your eGFR kidney result means in plain language, how it relates to creatinine, and questions for your doctor.
Potassium
Understand your potassium result in plain language, typical ranges, and questions to bring to your doctor.
Calcium
Understand your blood calcium result in plain language, typical ranges, and questions for your doctor.
Phosphorus
What your phosphorus result means in plain language, typical ranges, and questions to bring to your doctor.
Liver
ALT (Alanine Aminotransferase)
Understand your ALT liver enzyme result in plain language, typical ranges, and questions to ask your doctor.
AST (Aspartate Aminotransferase)
What your AST liver enzyme result means in plain language, typical ranges, and questions for your doctor.
Albumin
What your albumin result means in plain language, typical ranges, and questions to ask your doctor.
Blood Count (CBC)
Hormones
Reference ranges are typical adult values and vary by lab. Always use your own lab's range and discuss results with a qualified clinician.