TestSelect
A reference for lab tests patients ask about — usually after seeing a naturopathic doctor. Paste a list or search by name. Neutral, referenced, and says plainly when the ND is right.
Content version 4e076a6b65ad · last reviewed 2026-09-24
Paste an ND-recommended list or requisition — one test per line (commas and semicolons also split a line into separate items).
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84 of 84 tests
- 1,25-dihydroxy vitamin D (calcitriol)Rarely indicated
Nutrients · blood
- 17-hydroxyprogesterone (17-OHP)Indicated in specific situations
Sex hormones · blood
- 24-hour urine free cortisolIndicated in specific situations
Adrenal · urine
- 75 g oral glucose tolerance test (OGTT)Indicated in specific situations
Metabolic · blood
- Annual bloodwork / wellness panel (executive health screen)Rarely indicated
Wellness panel · blood, urine
- Anti-Mullerian hormone (AMH)Indicated in specific situations
Sex hormones · blood
- Antinuclear antibody (ANA)Indicated in specific situations
Other · blood
- Apolipoprotein B (ApoB)Indicated in specific situations
Lipids · blood
- BNP / NT-proBNP (natriuretic peptides)Indicated as standard
Metabolic · blood
- CA 15-3 (Cancer Antigen 15-3)Indicated in specific situations
Tumour markers · blood
- CA-125 (Cancer Antigen 125)Indicated in specific situations
Tumour markers · blood
- Candida antibodies (IgG, IgA, IgM)No validated clinical use
GI / immune · blood
- CEA (Carcinoembryonic Antigen)Indicated in specific situations
Tumour markers · blood
- Celiac serology (tTG-IgA + total IgA)Indicated as standard
GI / immune · blood
- Coenzyme Q10 (CoQ10)Rarely indicated
Nutrients · blood
- Complete blood count (CBC)Indicated in specific situations
Wellness panel · blood
- Comprehensive digestive stool analysis / microbiome profileNo validated clinical use
GI / immune · stool
- Copper (serum copper and ceruloplasmin)Indicated in specific situations
Nutrients · blood
- Cortisol (serum, random or 8 AM)Indicated in specific situations
Adrenal · blood
- DHEA-S (dehydroepiandrosterone sulfate)Indicated in specific situations
Adrenal · blood
- Diurnal salivary cortisol panel (4-point / "adrenal stress")No validated clinical use
Adrenal · saliva
- No validated clinical use
- Electrolytes (sodium, potassium, chloride, bicarbonate)Indicated in specific situations
Wellness panel · blood
- Environmental chemical panels (PCBs, volatile solvents, trichlorobenzene, bisphenol A, chlorinated pesticides)No validated clinical use
Toxicology · blood or urine
- Estradiol (E2)Indicated in specific situations
Sex hormones · blood
- Fasting insulinRarely indicated
Metabolic · blood
- Fecal calprotectinIndicated in specific situations
GI / immune · stool
- FerritinIndicated as standard
Iron · blood
- FibrinogenRarely indicated
Metabolic · blood
- Folate (serum and RBC folate)Indicated in specific situations
Nutrients · blood
- Free T3 (triiodothyronine)Indicated in specific situations
Thyroid · blood
- Free T4 (thyroxine)Indicated in specific situations
Thyroid · blood
- FSH (follicle-stimulating hormone)Indicated in specific situations
Sex hormones · blood
- Full thyroid panel (TSH, free T4, free T3, reverse T3, thyroid antibodies)No validated clinical use
Thyroid · blood, urine
- Galectin-3No validated clinical use
Metabolic · blood
- GlutathioneNo validated clinical use
Nutrients · blood
- Hair mineral analysis (hair tissue mineral analysis)No validated clinical use
Toxicology · hair
- HbA1c and fasting glucose (diabetes screening)Indicated in specific situations
Wellness panel · blood
- Helicobacter pylori testing (urea breath test, stool antigen, or serology)Indicated in specific situations
GI / immune · breath
- High-sensitivity C-reactive protein (hs-CRP)Rarely indicated
Metabolic · blood
- HomocysteineIndicated in specific situations
Metabolic · blood
- IGF-1 (insulin-like growth factor 1)Indicated in specific situations
Metabolic · blood
- IgG / IgG4 food "sensitivity" testingNo validated clinical use
GI / immune · blood
- Intestinal permeability ("leaky gut") testNo validated clinical use
GI / immune · urine
- Indicated in specific situations
- Kidney function (creatinine/eGFR, BUN, urine albumin-to-creatinine ratio)Indicated in specific situations
Wellness panel · blood, urine
- Late-night salivary cortisol (single sample)Indicated in specific situations
Adrenal · saliva
- Lead (blood)Indicated in specific situations
Toxicology · blood
- LeptinRarely indicated
Metabolic · blood
- Lipid panel (total cholesterol, HDL, LDL, triglycerides)Indicated in specific situations
Wellness panel · blood
- Lipoprotein(a) [Lp(a)]Indicated as standard
Lipids · blood
- Liver panel (ALT, AST, GGT, ALP, bilirubin, albumin)Indicated in specific situations
Wellness panel · blood
- Indicated in specific situations
- Lyme disease testing via private, non-PHO laboratories (IGeneX, Armin Labs, and similar)No validated clinical use
Other · blood
- Magnesium (serum magnesium)Indicated in specific situations
Nutrients · blood
- Melatonin (saliva or urine)No validated clinical use
Adrenal · saliva, urine
- Rarely indicated
- Mercury (blood and urine)Indicated in specific situations
Toxicology · blood or urine
- MTHFR gene testing (C677T / A1298C genotype)No validated clinical use
Other · blood or saliva (including direct-to-consumer genotyping)
- Omega-3 indexNo validated clinical use
Nutrients · blood
- Plasma amino acid fractionationRarely indicated
Nutrients · blood
- PregnenoloneNo validated clinical use
Adrenal · blood
- Progesterone (including 'day 21 progesterone')Indicated in specific situations
Sex hormones · blood
- ProlactinIndicated in specific situations
Sex hormones · blood
- Provoked (post-chelation-challenge) urine heavy metals testingNo validated clinical use
Toxicology · urine
- PSA (Prostate-Specific Antigen), including free PSA and PSA ratioIndicated in specific situations
Tumour markers · blood
- Reverse T3 (rT3)No validated clinical use
Thyroid · blood
- Rheumatoid factor (RF)Indicated in specific situations
Other · blood
- Salivary sex-hormone panel (estradiol / estriol / progesterone / testosterone / DHEA)No validated clinical use
Sex hormones · saliva
- SIBO breath test (lactulose/glucose hydrogen, ± methane, 3-gas)Indicated in specific situations
GI / immune · breath
- Stool ova and parasites (O&P)Indicated in specific situations
GI / immune · stool
- Testosterone (total and free), womenIndicated in specific situations
Sex hormones · blood
- Testosterone (total, and free/bioavailable), menIndicated in specific situations
Sex hormones · blood
- ThyroglobulinIndicated in specific situations
Thyroid · blood
- Thyroid peroxidase antibodies (TPOAb)Indicated in specific situations
Thyroid · blood
- Trace minerals panelRarely indicated
Nutrients · blood
- TSH (thyroid stimulating hormone)Indicated as standard
Thyroid · blood
- Uric acid (urate)Indicated in specific situations
Wellness panel · blood, urine
- Urinary organic acids test (OAT)Rarely indicated
Other · urine
- Urine mycotoxin panel (mould/mycotoxin testing)No validated clinical use
Toxicology · urine
- Vitamin B12 (cobalamin)Indicated in specific situations
Nutrients · blood
- Vitamin D, 25-hydroxy (25-OH vitamin D)Indicated in specific situations
Nutrients · blood
- Rarely indicated
- Zinc (serum/plasma zinc)Indicated in specific situations
Nutrients · blood