Qura Blog
Clear, evidence-based explainers on health, movement and prevention — written by our editorial team and reviewed by Qura’s medical team.
Wellbeing · 7 Jun 2026High gamma-GT: what the value indicates and when it is liver-relatedGamma-GT (GGT) is an enzyme found mainly in the liver and bile ducts. A high value signals possible liver or biliary strain, but it is a sensitive and non-specific marker: it indicates that something is moving, not the cause. It must always be read together with the other liver tests.
Wellbeing · 6 Jun 2026High fasting blood sugar: what it indicates and which tests complete the pictureWhen fasting, blood sugar is considered high above 100 mg/dL: between 100 and 125 it is called impaired fasting glucose, from 126 upwards — confirmed — it meets the criteria for diabetes. But an isolated value says little: it must be read together with insulin, glycated hemoglobin and the trend over time.
Wellbeing · 5 Jun 2026High ferritin: causes, meaning and when you should investigateFerritin is the protein that stores iron, and its level in the blood reflects your available reserves. High ferritin usually indicates ample reserves, but it is also a marker of inflammation: that is why an elevated value does not in itself mean excess iron, and must always be read together with other tests.
Wellbeing · 4 Jun 2026High C-reactive protein: what it indicates and when it should be investigatedA high C-reactive protein indicates that an inflammatory process is underway in the body. CRP is a non-specific marker: it signals that there is inflammation, but not where or why. A single elevated value is not enough for a diagnosis and must always be read together with the other tests and the clinical picture.
Wellbeing · 2 Jun 2026Normal blood test values: what reference ranges really meanA value out of range is not a diagnosis: the reference range is a statistical convention built on the healthiest 95% of people, so even someone who is well can fall outside it. What matters is context — age, clinical history, symptoms, the trend over time and related markers — not the single number.
Wellbeing · 1 Jun 2026How to read blood test results: a practical guide to the key valuesBlood tests are not read by comparing a single value against a threshold: they must be interpreted in the context of the person — age, medical history, symptoms — and by cross-checking related parameters. Here is how a report is organized and what to actually look at.
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