Knowledge base
The PSA test is the only blood test that can indicate prostate cancer. But an elevated value is not a diagnosis, and testing has both advantages and disadvantages. What you need to know.
Vitamin D deficiency is common in the Netherlands, particularly in the winter months. But how do you know whether you have a deficiency yourself? And when does testing actually make sense?
Fatigue, reduced libido, or muscle loss: testosterone is quickly identified as the cause. But a blood test tells you far more than any self-diagnosis ever can.
Persistent fatigue can have dozens of causes. The thyroid is one of them, and relatively easy to measure. What to expect from a thyroid test.
GLP-1 agonists such as semaglutide are very much in the spotlight. But those who use them, or are considering doing so, benefit from insight into a number of blood values. What you need to know.
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