Buy TRT monitoring: independent blood testing during TRT

TRT stands for testosterone replacement therapy, a treatment you always follow together with a doctor. Men using TRT in the Netherlands often want to see more than a single testosterone value: during therapy your hematocrit can rise, and your doctor may adjust your dose based on how your testosterone and blood values develop.

A TRT blood test brings these values together in one view, so you work with objective data instead of guesswork, and you have concrete numbers to discuss with your treating doctor.

This is monitoring, not treatment: we prescribe nothing and make no claims about your therapy itself. Those choices are made together with your doctor.

This TRT monitoring is meant for men who want to follow their testosterone therapy with objective numbers, independent of their provider. It may suit:

• Men treated by a TRT clinic in the Netherlands or abroad who want to see their values in between check-ups
• Men who have used TRT for a while and want to check their TRT blood values periodically
• Men who follow their dosage together with their doctor and want extra data points for that
• Men who want to keep following their hematocrit during TRT
• Men who want an extra measurement between two check-ups at their clinic

Note: this blood test does not replace the guidance of your doctor or clinic. It complements it with an independent measurement.

This panel measures the seven values that matter most for monitoring men on TRT:

• Total testosterone shows the total amount of testosterone in your blood.
• Free testosterone shows the portion your body can use directly. It is determined from your testosterone, SHBG and albumin — the method that guidelines prefer over a direct free-testosterone assay.
• SHBG binds testosterone and influences how much of it is available; it is also used to determine your free testosterone.
• Albumin is a blood protein that is also used to determine your free testosterone.
• Hemoglobin is the oxygen-carrying protein in your red blood cells.
• Hematocrit is the proportion of your blood made up of red blood cells; testosterone therapy can raise it.
• PSA is a prostate value that men often measure periodically during TRT.

Because the guidelines for men on testosterone injections or gel do not recommend them for routine monitoring. Liver-enzyme testing is relevant for oral, alkylated androgens, not for the testosterone esters and gels used in TRT. Cholesterol is part of general cardiovascular care rather than TRT monitoring, and estradiol is usually only measured when there are specific symptoms such as breast tenderness.

We keep this panel focused on testosterone, hematocrit and PSA so you do not pay for tests you do not need. If your doctor wants additional values, you can always add them separately.

The results can show you how your TRT blood values compare to the reference ranges. You can follow your hematocrit during TRT and see how it develops over time.

A high hematocrit may indicate that your blood is becoming thicker, which is one of the effects a doctor watches for during testosterone therapy. Your testosterone status and your PSA gain context in the same way.

If you measure periodically, you build your own data series. Together with your doctor, you can review what that trend may mean for your situation.

For this blood test, a staff member draws a small tube of blood at a certified location. You can choose from 700+ collection sites in the Netherlands, so even if you use TRT and measure regularly, there is almost always a location near you.

You request the test online, without a referral. Bring your appointment confirmation and a valid ID; the draw itself usually takes only a few minutes.

Testosterone therapy blood work can be useful at different moments. Many men choose to test:

• When they have just started testosterone therapy and want to see how their body responds
• When their doctor has adjusted the dosage and they want to follow the effect
• When their blood values were elevated before and they want to keep following their hematocrit
• When they experience symptoms such as low energy or reduced libido
• When they want to keep an eye on their values periodically

What the results mean depends on your personal situation. Each value is compared to a reference range, but a value outside that range does not automatically mean something is wrong.

With TRT, a doctor often looks at the whole picture: your total and free testosterone together with your hematocrit. Your PSA is followed for prostate safety, especially from your forties onward.

Always discuss any deviating values with your GP or treating doctor, so you know what the results may mean for you personally.

For most hormone values, it is advisable to have your blood drawn in the morning, when testosterone is often highest.

Drink enough water on the day of the draw, as dehydration can temporarily affect your hematocrit. If you use testosterone on a fixed schedule, discuss with your doctor when it is best to test.

You receive your results digitally in your account, usually within a few working days. For each value, you can see whether it falls within the reference range. You can then share your results with your GP or treating doctor.

Want to measure more broadly than these values? Take a look at the extensive blood test with 44 values. Not on therapy and looking for a compact starting point? Then the hormone blood test may suit you better.

Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.