What Is Testosterone Replacement Therapy? The Lab-Confirmed Protocol in 4 Steps

Testosterone replacement therapy is a physician-managed protocol that restores testosterone to the normal physiological range in men with clinically confirmed hypogonadism, following a 4-step process that begins with labs, never with a prescription.

Step 1: Baseline Lab Panel

No testosterone is prescribed at Rebuild Regen without lab confirmation. The baseline panel includes total testosterone (2 morning fasting draws), free testosterone, SHBG, LH, FSH, estradiol, PSA, complete blood count, complete metabolic panel, and thyroid panel. This panel identifies not only testosterone status but the cause of any deficiency and rules out other contributing conditions.

Step 2: Protocol Design

With lab results in hand, Elizabeth Celestin, APRN, FNP-C designs a protocol specific to the patient's deficiency pattern, health history, lifestyle, and goals. The protocol specifies the testosterone product, delivery method (injection, pellet, or topical), starting dose, and follow-up schedule.

Step 3: Initial Treatment

The first treatment is administered or prescribed at the protocol appointment. Pellet insertion is done in-office. Injectable patients receive self-injection training. Topical prescriptions are processed through pharmacy.

Step 4: Monitoring Labs at 4 to 6 Weeks and Every 6 Months

A 4 to 6 week follow-up panel confirms that testosterone is reaching the therapeutic target (typically 600 to 900 ng/dL total testosterone) and checks estradiol and hematocrit. Every 6 months thereafter, the full panel is repeated and the protocol is reviewed.

What TRT Addresses

Testosterone replacement therapy at Rebuild Regen Medical Clinic at 3320 N Federal Hwy #101, Lighthouse Point, FL addresses the 8 symptoms of low testosterone: chronic fatigue, reduced libido, erectile dysfunction, mood changes, muscle loss, increased body fat, cognitive changes, and reduced bone density. See the complete TRT guide for full details.

When TRT Is Not the Answer

Not all fatigue and low libido is testosterone deficiency. Thyroid dysfunction, sleep apnea, depression, and metabolic conditions produce the same symptom cluster. The baseline lab panel at Rebuild Regen distinguishes between these possibilities. If TRT is not appropriate, the actual cause is identified and addressed.