What Blood Tests Do Veterans Need for TRT?

To evaluate a veteran for TRT, providers typically order total testosterone, free testosterone, and the pituitary signaling hormones LH and FSH, often alongside estradiol, PSA, and a complete blood count. Testosterone is measured on a morning blood draw for accuracy, and low results are usually confirmed on a second test.

Lab work is the foundation of safe, effective TRT — it confirms whether testosterone is actually low, points to the cause, and sets a baseline for monitoring. You complete the draw at a Quest Diagnostics location near you. Call 1-800-259-0015 to get an order sent.

Frequently asked questions

Why test LH and FSH?

LH and FSH show whether low testosterone is coming from the testes or from the pituitary/brain signaling — which helps the provider understand the cause and choose the right approach.

Why does the draw need to be in the morning?

Testosterone peaks in the morning, so a morning draw gives the truest reading. Levels also fluctuate, so a low result is often confirmed with a second test.

Where do veterans get labs done?

At a Quest Diagnostics location convenient to you. The provider sends the order electronically; you walk in for a quick draw.

Are labs repeated during treatment?

Yes. Follow-up labs during treatment keep testosterone in a safe, effective range and monitor related markers.

Do I need to fast for the test?

Fasting requirements depend on the specific panel; your provider or the lab will tell you if fasting is needed.

Learn more

• Testosterone therapy for veterans: the complete guide
• Low testosterone symptoms in veterans
• Does the VA cover hormone therapy?
• What TRT costs for veterans without the VA
• Veterans hormone therapy by location