How to read your blood test report, in plain language
A plain guide to the columns on an Indian lab report: results, units, reference ranges and flags, plus which nutrient tests matter most.
By the Beyond Humans team. , 2 min read
A lab report packs a lot onto a page: test names, numbers, units, ranges, flags and footnotes. Once you know the layout, most reports from Dr Lal PathLabs, Thyrocare, Redcliffe, Metropolis, Tata 1mg and others read the same way.
The four columns that matter
- Test name. Sometimes with the method in brackets, like "Vitamin D, 25 Hydroxy (CLIA)". The method rarely matters to you.
- Result (or "Observed value"). Your number. A "<" or ">" in front means the value was beyond what the machine measures.
- Units. ng/mL, pg/mL, g/dL and so on. Always read the number with its unit: 30 ng/mL of vitamin D is the same as 75 nmol/L.
- Reference range (or "Biological reference interval"). The range most healthy people fall in, set by that lab.
Many reports also mark results outside the range with H (high), L (low) or bold text.
Why "normal" isn't always the full story
A reference range describes the middle 95% of people tested, and in a population where low vitamin D and B12 are common, the lower end can be lower than ideal. Two examples:
- A B12 of 250 pg/mL is often printed as normal, but many experts see 200 to 300 as low normal and worth acting on.
- A hemoglobin in range says nothing about your iron stores. Ferritin does.
That's why we use one fixed reference table for every report, rather than each lab's printed range, and explain where each value sits.
The nutrient tests worth knowing
- Vitamin D (25 hydroxy): stores of vitamin D. Read our guide to vitamin D results.
- Vitamin B12: often low in vegetarians. See B12 for vegetarians.
- Ferritin and hemoglobin: iron stores and red blood cells. See ferritin vs hemoglobin.
- Folate: works with B12; low with few leafy greens.
- Magnesium, zinc and calcium: minerals that often run low with packaged food or little dairy.
Kidney and liver tests matter too
Creatinine, eGFR, ALT and AST are not nutrients, but they decide which supplements are safe. If your kidneys or liver are outside the usual range, some supplements (like magnesium and iron) are better left out until a doctor has looked. Our plans check these automatically.
Dates matter
Look for the collection date, not the report date. Results older than about 3 months may not match where you are today. If you have changed your diet or started supplements since, consider a fresh test.
When to see a doctor
Values far outside the usual range (for example vitamin D under 5 ng/mL, hemoglobin under 8 g/dL, or very high liver enzymes) are worth a doctor's visit soon, whatever any app says. Beyond Humans shows a "See a doctor soon" banner in those cases and holds back doses.
Let us read it for you
Upload the original PDF from your lab's app or email. Beyond Humans reads the values for you, with nothing to type, explains each one in plain language and builds a daily plan.
General information, not medical advice. Check with a doctor before starting any supplement, especially if you are pregnant, take medicine or have a health condition.