Health Indicators Glossary

What your lab results mean — in plain language

HbA1c (glycated hemoglobin)

Average blood glucose over 2–3 months; normal <5.7%, diabetes ≥6.5%

<5.7% normal

eGFR

Glomerular filtration rate — kidney function marker

≥90 mL/min normal

Blood pressure

Systolic/diastolic pressure; normal <120/80, hypertension ≥140/90

<120/80 optimal

LDL / HDL

'Bad' and 'good' cholesterol; LDL is the main target for CVD risk

LDL <116 mg/dL

Ferritin

Iron stores; low ferritin means iron deficiency even with normal hemoglobin

~20–120 ng/mL (F)

TSH

Thyroid-stimulating hormone — thyroid screening test

0.4–4.0 mIU/L

Vitamin D (25-OH)

Vitamin D status marker; deficiency common in low-sunlight latitudes

30–50 ng/mL

ALT / AST

Liver enzymes; elevation indicates hepatocyte damage

ALT <41 U/L

Creatinine

Muscle metabolism byproduct; basis for eGFR calculation

0.7–1.3 mg/dL

CRP

Inflammation marker; hs-CRP used for cardiovascular risk

<5 mg/L

SpO2 (saturation)

Blood oxygen saturation; <94% is a reason to see a doctor

95–100%

BMI

Body mass index = weight/height²; limited for muscular builds

18.5–24.9

Waist circumference

Marker of abdominal obesity and metabolic risk

<94 cm (M), <80 cm (F)

Resting heart rate

Beats per minute at rest; fitness lowers the value

60–100 bpm

Reference ranges vary between laboratories — rely on the ranges on your lab report and your doctor's interpretation.

Over Gezondheidswaarden — glossarium

Gezondheidswaarden — glossarium — Wat HbA1c, eGFR, ferritine, TSH en andere uitslagen betekenen.. Gezondheid: gezondheidscalculators. Gebruik onze tools zonder registratie of software-installatie. Alle berekeningen gebeuren in uw browser — uw gegevens worden nooit naar een server gestuurd.