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Testosterone Replacement Therapy - or TRT - is a medical course of treatment whereby lower levels of testosterone can be "topped up" over time.
Testosterone is the primary male sex hormone, an androgen produced mainly by the testicles, though also in lesser amounts by the adrenal glands and ovaries in women. It is crucial for male sexual development, the maintenance of characteristics such as muscle mass and body hair, and plays roles in fertility, red blood cell production and bone density.
Testosterone levels naturally decrease with age. In fact, some studies estimate that 40% of males in the UK have lower than optimal levels of testosterone.*
What is included inside your first blood test?
Measures your overall testosterone levels, the primary male hormone responsible for muscle mass, energy, libido, and mood. Low levels can affect vitality, sexual function, and overall wellbeing.
A protein that binds to testosterone in your blood. High SHBG can reduce the amount of usable testosterone available to your body, while low levels may indicate metabolic issues.
Shows the ratio of testosterone to SHBG, indicating how much active testosterone is available for your body to use. This helps determine if you have enough usable testosterone despite your total levels.
A key protein made by your liver that helps transport hormones and nutrients. Albumin levels also affect how much free testosterone is available in your bloodstream.
The amount of testosterone readily available to your tissues, not bound to proteins. This is often more important than total testosterone as it represents the hormone actively working in your body.
Measures all cholesterol in your blood. While cholesterol is essential for hormone production, elevated total cholesterol increases heart disease risk.
All cholesterol types except the "good" HDL cholesterol. This marker gives a comprehensive view of potentially harmful cholesterol that can build up in arteries.
Often called "bad cholesterol," LDL can build up in artery walls, increasing heart attack and stroke risk. Lower levels are generally better for cardiovascular health.
Known as "good cholesterol," HDL removes excess cholesterol from your arteries and transports it to the liver. Higher levels are protective against heart disease.
Compares total cholesterol to good cholesterol, providing insight into cardiovascular risk. A lower ratio indicates better heart health and cholesterol balance.
A protein produced by the prostate gland. Elevated levels can indicate prostate enlargement, inflammation, or in some cases, prostate cancer, though many factors can affect PSA.
Assesses how well your kidneys filter waste from your blood. Healthy kidney function is essential for blood pressure regulation, hormone balance, and overall health.
Measures enzymes and proteins that indicate liver health. Your liver processes medications, hormones, and toxins, so healthy function is critical for overall wellbeing.
Evaluates thyroid hormone levels that control metabolism, energy, weight, and body temperature. Both underactive and overactive thyroid can significantly impact how you feel.
Indicates your iron stores. Low ferritin causes fatigue and reduced exercise capacity, while high levels may indicate inflammation or other health conditions.
Essential for nerve function, energy production, and red blood cell formation. Deficiency can cause fatigue, cognitive issues, and nerve problems.
Works with B12 to support cell growth, DNA production, and red blood cell formation. Adequate folate is important for energy and cardiovascular health.
An important mineral involved in hundreds of biochemical processes in the body, including muscle function, nerve signalling, and energy production. Magnesium also plays a role in maintaining heart rhythm and bone health.
A mineral that works alongside calcium to support healthy bones, teeth, and energy production in the body. Phosphate levels also help assess kidney function and overall mineral balance.