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MediHelp feature
Lab reference ranges, with the medicines that affect a result
Look up the reference range and unit for a lab test and see which medicines are known to affect the result.
Short answer
MediHelp Lab References gives the reference range and unit for lab tests, with the medicines known to affect a result. For example, a potassium of 5.8 mmol/L is above the usual adult range of 3.5 to 5.0 mmol/L, which is hyperkalaemia, and the page points to medicines to review. Free calculators cover corrected calcium and the anion gap.
What it does
- Ranges and units. The reference range and the unit for each test.
- Medicines that affect a result. The medicines known to change the value.
- Calculators. Albumin-corrected calcium and the anion gap, with formulas and citations.
- Lab analysis in the app. The app can also help interpret a lab report. It needs a connection.
How to use it
- Find the test. Search by test name.
- Compare the value with the range. Check the unit first, then the range.
- Review the medicines. See which medicines may explain an abnormal value.
Example
- You enter
- Potassium 5.8 mmol/L
- You see
- Above the usual adult range (3.5-5.0 mmol/L): hyperkalaemia. Review ACE inhibitors, ARBs, spironolactone, trimethoprim and NSAIDs, and check renal function.
An example of what the tool shows, not clinical advice.
Where the information comes from
Each lab page names the references behind its range, and the medicines that affect a result come from product information. Reference ranges differ between laboratories and populations: use the range printed on your lab's report.
Frequently asked questions
Which reference range should I use?
The one printed on the laboratory's report, because ranges differ between laboratories and populations. MediHelp shows the usual adult range as a guide.
Does it show medicines that change a result?
Yes. It lists the medicines known to affect the value of a test.
Can it correct calcium for albumin?
Yes. The free corrected calcium calculator shows the formula, the steps and the citations.
Can it interpret a whole lab report?
The app has lab analysis, which needs a connection. Verify its output against the report and your clinical judgement.
MediHelp is a reference and education tool for healthcare professionals and students. It supports, and does not replace, clinical judgement or the official product label. Check anything that affects a patient against the source.
