Blood WorkRoutine blood work can show signs of diabetes and prediabetes, high cholesterol, kidney and liver problems, anemia and low iron, thyroid disease, vitamin deficiencies, hormone changes and infections such as hepatitis and HIV. It rarely diagnoses anything on its own: a clinician reads results with your symptoms and history, and some need a repeat test or imaging to confirm. Below, each condition links to the one Passion Health page that covers it.
Tests by condition
Blood sugar and metabolism
| Condition | Tests that check for it | Panel | Page |
|---|---|---|---|
| Prediabetes | A1c, fasting glucose | Essential $59 | Prediabetes care online |
| Type 2 diabetes | A1c, fasting glucose, urine albumin | Diabetes & Kidney $69 | Type 2 diabetes care online |
| Insulin resistance | Fasting insulin, HOMA-IR, triglycerides, HDL | Essential + fasting insulin, $89 | Insulin resistance test |
| Gout | Uric acid | Uric acid $20 | Uric acid test |
Heart
| Condition | Tests that check for it | Panel | Page |
|---|---|---|---|
| High cholesterol | Cholesterol panel, ApoB | Essential $59, Full $149 | High cholesterol care online |
| Too many cholesterol particles | ApoB | Full $149 | ApoB test |
| Inherited high Lp(a) | Lp(a), at least once in adulthood | Full $149 | Lp(a) test |
| Plaque in the heart arteries | Coronary calcium score (a scan) | Scans | Calcium score test |
Kidney and liver
| Condition | Tests that check for it | Panel | Page |
|---|---|---|---|
| Chronic kidney disease | eGFR, urine albumin | Diabetes & Kidney $69 | Kidney function test |
| Fatty liver | ALT, AST; FIB-4 for scarring risk (imaging confirms fatty liver) | Essential $59 | Fatty liver care online |
Blood and nutrients
| Condition | Tests that check for it | Panel | Page |
|---|---|---|---|
| Anemia and iron deficiency | Blood count, ferritin, iron | Energy & Iron $119 | Anemia and iron test |
| Vitamin D, B12 or folate deficiency | 25-hydroxy vitamin D, B12, folate | Energy & Iron + vitamin D, $159 | Vitamin deficiency test |
| Ongoing tiredness | Blood count, ferritin, B12, folate, TSH | Energy & Iron $119 | Energy & Iron Panel |
Thyroid and hormones
| Condition | Tests that check for it | Panel | Page |
|---|---|---|---|
| Underactive thyroid | TSH, free T4 | Thyroid $30 | Underactive thyroid care online |
| Overactive thyroid | TSH, free T4 | Thyroid $30 | Overactive thyroid care online |
| Low testosterone | Morning testosterone, SHBG, free testosterone | Men's Health $139 | Low testosterone test |
| Perimenopause and menopause | Often diagnosed from symptoms; FSH, estradiol, TSH add context | Women's Midlife $145 | Perimenopause · Menopause |
| PCOS | Testosterone, SHBG, A1c, cholesterol | Single tests | PCOS care online |
| Prostate cancer screening | PSA, as a shared decision | Men's Health $139 | Prostate cancer screening |
Infections
| Condition | Tests that check for it | Panel | Page |
|---|---|---|---|
| Hepatitis B and C | Hepatitis C antibody, hepatitis B triple panel | Infection Screening $70 | Hepatitis B & C testing |
| HIV and other STDs | HIV antigen/antibody | Infection Screening $70 | STD testing online |
What routine blood work can't find
Most cancers. Routine blood work doesn't screen for them. Cancer screening uses colonoscopy or stool tests, mammograms, Pap and HPV tests and, for some current or former smokers, a lung CT. PSA for prostate cancer is a decision to make with your clinician (prostate cancer screening).
Blocked heart arteries. Blood tests show risk, not blockages. A coronary calcium score shows plaque in the arteries, and a stress test checks blood flow to the heart.
Conditions that need a different test. Sleep apnea needs a sleep study (sleep apnea care), osteoporosis a DEXA scan (scans), and kidney stones imaging (kidney stones).
What common blood panels check
| Panel | What it checks | Where it's included |
|---|---|---|
| Complete blood count (CBC) | Red cells, hemoglobin and hematocrit, red cell size (MCV, RDW), white cells and their types, and platelets. Finds anemia, clues to infection or inflammation, and blood disorders. | Essential $59 and most panels. Alone $20. |
| Comprehensive metabolic panel (CMP) | Glucose; kidney function (creatinine, BUN, eGFR); liver enzymes and proteins (ALT, AST, alkaline phosphatase, bilirubin, albumin, total protein); sodium, potassium, chloride, bicarbonate and calcium. | Essential $59 and most panels. Alone $20. |
| Lipid panel | Total cholesterol, LDL, HDL and triglycerides, with non-HDL calculated. | Essential $59. Alone $25. |
| Hemoglobin A1c | Your average blood sugar over about three months. | Essential $59. Alone $20. |
See all 66 results in the biomarker library, or pick single tests.
Questions
What can a blood test detect?
Routine blood work can show signs of diabetes and prediabetes, high cholesterol, kidney and liver problems, anemia and low iron, thyroid disease, vitamin deficiencies, hormone changes and infections such as hepatitis and HIV. A clinician confirms what the results mean.
Can a blood test detect cancer?
Routine blood work can't rule cancer in or out. Some results, such as unexplained anemia, can prompt a closer look, and PSA is used in prostate cancer screening as a shared decision. Screening for other common cancers uses colonoscopy or stool tests, mammograms, Pap and HPV tests and, for some smokers, lung CT.
What does a CMP test for?
A comprehensive metabolic panel checks glucose, kidney function (creatinine, BUN and eGFR), liver enzymes and proteins, and your electrolytes and calcium. It's in Essential Blood Work and most Passion Health panels, or $20 on its own.
What does a CBC show?
A complete blood count measures your red cells, hemoglobin, white cells and platelets. It's how anemia is found, and it can give clues to infection, inflammation and blood disorders.
What does a lipid panel test for?
Total cholesterol, LDL (bad) cholesterol, HDL (good) cholesterol and triglycerides, with non-HDL cholesterol calculated. Together they help set your heart-risk plan.
How often should I get blood work?
There's no single schedule for everyone. Healthy adults usually need cholesterol checked every 4 to 6 years and blood sugar at least every 3 years from age 35, and people with diabetes or high blood pressure need kidney tests yearly. Your clinician sets your schedule from your age, health and medicines.
Sources
- American Diabetes Association: 2. Diagnosis and Classification of Diabetes, Standards of Care in Diabetes 2026
- KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease
- ACC/AHA/Multisociety Guideline on the Management of Dyslipidemia, Circulation, March 13, 2026
- World Health Organization: Guideline on haemoglobin cutoffs to define anaemia, 2024