Marker library
Every marker, explained.
Plain-language, cited explanations for 55 common blood-test markers — what each one measures, what high and low can mean, and why the trend across your last 3+ tests matters more than any single number.
Lipids & cardiovascular
Cholesterol, triglycerides, and the particles that drive heart risk.
Glycemic & insulin
Blood sugar control and how your body handles glucose over time.
Complete blood count (CBC)
Red cells, white cells, and platelets — your blood's cellular makeup.
- Absolute Lymphocyte Count ALC
- Absolute Monocyte Count AMC
- Absolute Neutrophil Count ANC
- Hematocrit HCT
- Hemoglobin Hgb
- Mean Corpuscular Hemoglobin MCH
- Mean Corpuscular Hemoglobin Concentration MCHC
- Mean Corpuscular Volume MCV
- Platelet Count PLT
- Red Blood Cell Count RBC
- Red Cell Distribution Width RDW
- White Blood Cell Count WBC
Iron status
Stored iron and how much your body has on hand.
Liver
Enzymes and proteins that reflect liver function and health.
Kidney
Filtration markers that show how well your kidneys clear waste.
Thyroid
The hormones that set your metabolic pace.
Electrolytes & minerals
Sodium, potassium, calcium, and the minerals that balance your body.
Vitamins
Key vitamins whose levels shape energy, bone, and nerve health.
Hormones
Markers across the endocrine system.
Inflammation
Signals of systemic, low-grade inflammation.
Cardiac & vascular risk
Extra markers that refine cardiovascular and vascular risk.
Metabolic
Broader metabolic markers.
Other markers
Additional markers Helm can read and explain.