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About Our Testosterone Maintenance / Therapy Panel

Our Testosterone Maintenance / Therapy Panel is used to evaluate important levels within the blood that can be affected during testosterone replacement therapy (TRT) or when receiving testosterone injections or boosters.

The Testosterone Maintenance / Therapy Panel includes the following tests and measurements:

  • Testosterone Free and Total Test
  • Estradiol, Ultrasensitive Test
  • Complete Blood Count (CBC) with Differential & Platelets
  • Comprehensive Metabolic Panel (CMP)

Testosterone testing is used to diagnose several conditions in both men and women, as well as detecting low levels or deficiencies (known as Low T) in men. Testosterone is the main sex hormone in men and is responsible for male physical characteristics. Levels of testosterone have been shown to decrease in males around the age of 40. Symptoms associated with low testosterone levels in men can include fatigue, loss of libido and muscle mass, difficulty sleeping and weight gain.

This testosterone testing panel is recommended quarterly for individuals receiving TRT or testosterone supplementation.


Testosterone Free and Total Test

This testosterone blood test measures the total amount testosterone that is bound to proteins in the blood as well as testosterone that is not bound (free testosterone), providing a complete analysis of all testosterone levels. Approximately two-thirds of testosterone circulates in the blood bound to SHBG and less than one-third is bound to albumin. A small percent (less than 4 percent) circulates in the blood as free testosterone.


Estradiol, Ultrasensitive Test

The estradiol ultrasensitive test is used to measure ranges of the hormone estradiol in the blood that are lower than the levels of the standard estradiol test. This type of estradiol test is recommended for when increased sensitivity to estradiol is expected and/or appropriate, as in situations with men. Estradiol is a form of estrogen, and men undergoing testosterone therapy may experience elevated levels of estradiol. In men, small amounts of estradiol is released by the testes to prevent sperm from dying prematurely. Testing estradiol levels may be useful in the evaluation of males for gynecomastia (also known as man boobs).


Complete Blood Count (CBC) with Differential & Platelets

The Complete Blood Count (CBC) test helps to give an overall view of general health and screens for a broad scope of diseases and conditions and measures 10 different cell and cell molecule counts in the blood. Two especially important levels included in the CBC as they relate to testosterone levels are the hematocrit and the hemoglobin levels tests. Following 6 to 9 months of testosterone therapy sometimes causes hematocrit and hemoglobin levels to exceed the normal range, potentially causing a dangerous thickening of the red blood cells. In instances of this occurring, individuals are often directed to donate blood to brings levels back down to appropriate ranges.

    The CBC test includes testing for 10 kinds of cells and cell molecules in the blood:

    • Hematocrit - The amount of red blood cells in the blood.
    • Hemoglobin - A protein that transports oxygen or carbon dioxide in the blood.
    • Mean Corpuscular Volume (MCV) - Measures the average volume of red blood cells in the blood.
    • Mean Corpuscular Hemoglobin (MCH) - The amount of hemoglobin per red blood cell.
    • Mean Corpuscular Hemoglobin Concentration (MCHC) - The amount of hemoglobin concentrated in a given volume of red blood cells.
    • Red Cell Distribution Width (RDW) - Measures the difference of red blood cell size or volume in blood sample.
    • Percentage and Absolute Differential Counts - Measures the amounts of different white blood cell types within the blood.
    • Platelet Count - Measures the amount of platelets (fragments and particles of cells) in the blood that are crucial for blood clotting.
    • Red Blood Cell Count (RBC) - Measures the amounts of red blood cells in the blood. Red blood cells transport oxygen throughout the body.
    • White Blood Cell Count (WBC) - Measures the amount of white blood cells in the blood. White blood cells defend the body against infections and foreign bodies.

    Comprehensive Metabolic Panel (CMP)

    The CMP measures blood sugar (glucose) levels, electrolyte and fluid balance, kidney function, and liver function. The 13 measurements included in the CMP help to provide a look at the overall health of the body and its metabolism and chemical balance, and can help diagnose certain conditions like diabetes, kidney disease, liver disease and hypertension. The CMP aids in determining how the liver and kidneys are functioning and where glucose, calcium, protein, sodium, potassium, and chloride levels stand, and is especially relevant for monitoring liver health during therapy.

    The CMP blood test panel measures levels of:

    • Albumin
    • Blood urea nitrogen (BUN)
    • Calcium
    • Carbon dioxide (Bicarbonate)
    • Chloride
    • Creatinine
    • Glucose
    • Potassium
    • Sodium
    • Total bilirubin
    • Total protein
    • Alanine aminotransferase (ALT)
    • Alkaline phosphatase (ALP)
    • Aspartate aminotransferase (AST)

    Fasting is required for the blood glucose test that is included in the CMP, but not for any of the other tests involved. Fasting is defined as no consumption of food or beverages other than water for at least 8 hours before testing.

    Fasting Instructions:

    Fasting is required for the blood glucose test that is included in the CMP, but not for any of the other tests involved. Fasting is defined as no consumption of food or beverages other than water for at least 8 hours before testing.


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