Lab Test Library

Plain language guides to individual lab tests: what each test measures, what results may show, what a test may not show, and which Vitality Express Labs panels include it. Tests are grouped by class, with related tests together. Results are a snapshot and do not diagnose a condition, so review them with your own healthcare provider.

Jump to: Blood Count and Iron, Vitamins, Thyroid, Women’s and Reproductive Hormones, Men’s Health and Androgens, Metabolic and Heart Health, Sexual Health and Infection.

Blood Count and Iron

Test	What it checks	Appears in
CBC with differential	Red cells, white cells and platelets.	Complete Blood Count (CBC), Wellness Panel, Comprehensive Health Panel, Women’s, Comprehensive Health Panel, Man, Anemia Panel, Hair Loss Panel
Ferritin	How much iron your body has stored.	Anemia Panel, Hair Loss Panel
Iron and TIBC	Iron in your blood and how well it is carried.	Anemia Panel, Hair Loss Panel

Vitamins

Test	What it checks	Appears in
Folate	A B vitamin needed to make new cells.	Anemia Panel
Vitamin B12	A nutrient needed for nerves and red blood cells.	Vitamin B12 Test, Anemia Panel
Vitamin D, 25 hydroxy	Your vitamin D status.	Vitamin D Test, Wellness Panel, Comprehensive Health Panel, Women’s, Hair Loss Panel

Thyroid

Test	What it checks	Appears in
Free T3	The more active thyroid hormone.	Comprehensive Thyroid Panel
Free T4	The active form of the main thyroid hormone.	Thyroid Function Test (TSH and Free T4), Comprehensive Thyroid Panel, Hair Loss Panel
Thyroglobulin antibodies	An immune marker for autoimmune thyroid disease.	Comprehensive Thyroid Panel
TPO antibodies	A second immune marker for autoimmune thyroid disease.	Comprehensive Thyroid Panel
TSH	The usual first check of thyroid function.	Thyroid Function Test (TSH and Free T4), Comprehensive Thyroid Panel, Female Hormone Panel, Menopause Panel, Wellness Panel, Comprehensive Health Panel, Women’s, Comprehensive Health Panel, Man, Hair Loss Panel

Women’s and Reproductive Hormones

Test	What it checks	Appears in
AMH	A marker of ovarian reserve.	Women’s Fertility AMH Test
Estradiol	The main form of estrogen.	Female Hormone Panel, Menopause Panel
FSH	A pituitary hormone that controls the cycle and egg development.	Female Hormone Panel, Menopause Panel
hCG, quantitative	The pregnancy hormone, measured as a number.	Pregnancy Blood Test, Quantitative hCG
LH	The hormone that triggers ovulation.	Female Hormone Panel, Menopause Panel
Progesterone	A hormone made mostly after ovulation.	Female Hormone Panel, Menopause Panel
Prolactin	A pituitary hormone linked to milk production.	Female Hormone Panel

Men’s Health and Androgens

Test	What it checks	Appears in
DHEA-S	An adrenal hormone the body uses to make sex hormones.	Hair Loss Panel
PSA	A prostate protein used in screening.	Prostate Screening ( PSA )
Total testosterone	All testosterone in the blood.	Testosterone Test, Comprehensive Health Panel, Man, Female Hormone Panel, Hair Loss Panel

Metabolic and Heart Health

Test	What it checks	Appears in
CMP	Blood sugar, kidney, liver and electrolyte markers.	Comprehensive Metabolic Panel (CMP), Wellness Panel, Comprehensive Health Panel, Women’s, Comprehensive Health Panel, Man
Hemoglobin A1c	Average blood sugar over about three months.	Wellness Panel, Comprehensive Health Panel, Women’s, Comprehensive Health Panel, Man
hs-CRP	A low level inflammation marker used in heart risk review.	Wellness Panel, Comprehensive Health Panel, Women’s, Comprehensive Health Panel, Man
Lipid panel	Total cholesterol, LDL, HDL and triglycerides.	Cholesterol (Lipid) Panel, Wellness Panel, Comprehensive Health Panel, Women’s, Comprehensive Health Panel, Man
Urinalysis	A urine check for infection, kidney and sugar markers.	Wellness Panel, Comprehensive Health Panel, Women’s, Comprehensive Health Panel, Man

Sexual Health and Infection

Test	What it checks	Appears in
Chlamydia	A bacterial infection that often has no symptoms.	STD Screening Panel, Basic, STD Screening Panel, Comprehensive
Gonorrhea	A bacterial infection often tested with chlamydia.	STD Screening Panel, Basic, STD Screening Panel, Comprehensive
Hepatitis B surface antigen	A marker of current hepatitis B infection.	STD Screening Panel, Comprehensive
Hepatitis C antibody	A marker of exposure to hepatitis C.	STD Screening Panel, Comprehensive
HIV 1 and 2	Antibody and antigen screening for HIV.	STD Screening Panel, Basic, STD Screening Panel, Comprehensive
Syphilis	Antibodies to the bacteria that cause syphilis.	STD Screening Panel, Basic, STD Screening Panel, Comprehensive
Trichomoniasis	A parasite infection that often has no symptoms.	STD Screening Panel, Comprehensive

More tests are being added to the library. See every current test on our all tests page.

Medically reviewed by Rodion Levin, FNP-C, Founder and Medical Director. This library is for general education. It does not diagnose a condition or replace advice from your healthcare provider.