Symptom → lab tests
Which blood tests should you get for ongoing nausea?
Short answer
Persistent nausea has many causes, and a first round of blood tests covers the ones labs can see: liver and pancreas (hepatic panel, lipase), kidney function and electrolytes, blood sugar, thyroid, anemia and — in anyone who could be pregnant — hCG. H. pylori and celiac testing follow when symptoms center on the stomach. Nausea with severe pain, chest pain or vomiting blood is an emergency.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
When should you see a clinician instead of ordering a test?
- Vomiting blood or material that looks like coffee grounds; black stools
- Nausea with chest pain, pressure, sweating or shortness of breath — call 911
- Severe abdominal pain, a rigid abdomen, or high fever
- Unable to keep fluids down for more than 24 hours, dizziness on standing, very little urine
- Nausea with a severe headache, stiff neck or confusion
Why these tests for nausea?
A comprehensive metabolic panel checks liver enzymes, kidney function, sodium, potassium, calcium and glucose in one draw — liver disease, kidney impairment, high calcium and uncontrolled diabetes all present with nausea. Lipase screens the pancreas.
Pregnancy is the most common cause of new nausea in people who can become pregnant; a quantitative hCG settles it. TSH screens for hyperthyroidism, and a CBC for anemia or infection.
If nausea comes with upper-abdominal burning or fullness, an H. pylori test looks for the bacterium behind most ulcers; celiac antibodies cover gluten-related disease.
Which conditions do these tests help evaluate?
- Fatty Liver — Liver enzymes, metabolic and lipid markers to assess fatty liver risk.
- Celiac Disease — Celiac antibody testing and the markers used to screen for gluten-related disease.
- Thyroid Problems — TSH, Free T4/T3 and antibodies to evaluate an under- or over-active thyroid.
Which tests, and what do they cost?
Prices are cash-pay; every order adds one $6 lab processing fee. Physician authorization is included; no insurance or referral needed.
| Test or panel | Type | Price | Fasting | Results |
|---|---|---|---|---|
| Gut Health PanelSaves $83.96 vs ordering the tests separately | Panel · 5 tests | $129.99 | No | 3–7 business days |
| General Wellness PanelSaves $6.97 vs ordering the tests separately | Panel · 4 tests | $89.99 | Yes | 1–3 business days |
| Comprehensive Metabolic Panel | Test · 14 biomarkers | $22.99 | Yes | 1–3 business days |
| Lipase | Test | $21.99 | No | 1–3 business days |
| Pregnancy Test (Quantitative hCG) | Test | $26.99 | No | 1–3 business days |
| TSH (Thyroid Stimulating Hormone) | Test | $26.99 | No | 1–3 business days |
| CBC with Differential | Test · 14 biomarkers | $21.99 | No | 1–3 business days |
| H. pylori Stool Antigen Test | Test | $149.99 | No | 3–5 business days |
| Celiac Disease Panel | Test · 5 biomarkers | $124.99 | No | 3–7 business days |
| Hemoglobin A1c | Test | $21.99 | No | 2–4 business days |
Common questions
Can blood tests find the cause of nausea?
Often they narrow it — liver, pancreas, kidney, thyroid, pregnancy and blood-sugar causes all show up in a metabolic panel plus a few add-ons. Stomach-lining causes (gastritis, ulcers, reflux) need H. pylori testing or endoscopy instead.
What labs are checked for nausea without vomiting?
The same first set: comprehensive metabolic panel, lipase, CBC, TSH, and hCG if pregnancy is possible. Medication side effects and anxiety are common causes no test detects, so bring a medication list to the follow-up.
Educational content, not a diagnosis. Lab results are one input; a clinician interprets them with your history and exam.