TRT blood testing, monitored with precision
General recommendations for monitoring individuals on Testosterone Replacement Therapy. We provide blood sample collection and laboratory testing — your results are reviewed and interpreted by your prescribing clinician.
47 key biomarkers, tracked over time
Comprehensive monitoring for those on Testosterone Replacement Therapy — essential for tracking your health, safety and treatment effectiveness across hormones, blood, organ function and more.

47 biomarkers across 9 health areas
Hormone Monitoring
8- Testosterone
- Calculated Free Testosterone
- Free Androgen Index
- Sex Hormone Binding Globulin (SHBG)
- Oestradiol (E2)
- Prolactin
- Luteinising Hormone (LH)
- Follicle Stimulating Hormone (FSH)
Full Blood Count
15- Haemoglobin
- Haematocrit
- Red Blood Cell Count
- White Blood Cell Count
- Platelets
- MCV
- MCH
- MCHC
- RDW
- Neutrophils
- Lymphocytes
- Monocytes
- Eosinophils
- Basophils
- Mean Platelet Volume
Liver Health
8- ALT
- AST
- GGT
- Alkaline Phosphatase
- Bilirubin
- Albumin
- Total Protein
- Globulin
Kidney Health
3- Creatinine
- eGFR
- Urea
Cardiovascular Health
6- Total Cholesterol
- HDL Cholesterol
- LDL Cholesterol
- Non-HDL Cholesterol
- Triglycerides
- Total Cholesterol : HDL Ratio
Diabetes Screening
1- HbA1c (Glycosylated Haemoglobin)
Thyroid Function
3- Thyroid Stimulating Hormone (TSH)
- Free T4 (thyroxine)
- Free T3 (triiodothyronine)
Iron Status
1- Ferritin
Prostate Health
1- Prostate Specific Antigen (PSA)
A monitoring schedule for every stage
From baseline assessment to long-term maintenance, here are the recommended tests and panels for each phase of your TRT journey.
Before starting TRT
Recommended tests
or Ultimate Athlete Performance (£206)
A comprehensive baseline assessment. Platinum offers the broadest health profile; Ultimate Athlete focuses on performance, recovery and comprehensive TRT monitoring.
6–8 weeks after starting or a dose change
Recommended tests
Ideal for early monitoring after commencing treatment or adjusting your dose.
Every 3–6 months during the first year
Recommended tests
or Ultimate Athlete Performance (£206)
For clients wanting a more comprehensive review including additional health and performance biomarkers.
Every 6–12 months once stable
Recommended tests
or Platinum Health Panel (£215)
Ideal as an annual comprehensive review alongside routine TRT monitoring.
What certain markers may indicate
These are general guides only. Any result outside the reference range should be interpreted by your prescribing clinician alongside your symptoms and history.
- Raised Haematocrit / Haemoglobin
May indicate TRT-induced erythrocytosis.Gold TRT Maintenance or Ultimate Athlete Performance
Repeat testing may be appropriate. Prompt review by your prescribing clinician is recommended, particularly if levels are significantly elevated.
- Raised Oestradiol (E2)
May be associated with symptoms such as breast tenderness, fluid retention or mood changes.Gold TRT Maintenance Panel
Correlate with symptoms and review with your prescribing clinician.
- Low or High Testosterone
May explain persistent symptoms (low) or increase risk of side effects (high).Gold TRT Maintenance Panel
Discuss optimisation or dosage review with your prescribing clinician.
- Abnormal Liver Function
May indicate liver stress or dysfunction.Ultimate Athlete Performance or Platinum Health
Clinical review and further investigation may be required.
- Reduced Kidney Function
Abnormal kidney markers should be interpreted in clinical context.Ultimate Athlete Performance or Platinum Health
Review with your prescribing clinician. Further assessment may be required.
- Abnormal Cholesterol
TRT and lifestyle factors may influence cholesterol levels.Ultimate Athlete Performance or Platinum Health
Lifestyle optimisation and discussion with your prescribing clinician.
- Raised PSA (where tested)
May indicate prostate concerns.Ultimate Athlete Performance or Platinum Health
PSA >4 ng/mL or a rise >1.4 ng/mL in 12 months: refer to urology. Discuss with your prescribing clinician.
Important
Barnsley Bloodworks provides blood sample collection and laboratory testing only. We do not diagnose medical conditions, prescribe TRT or advise on medication changes. All results should be reviewed and interpreted by your prescribing clinician before any treatment decisions are made.
Disclaimer
This guide is for educational purposes only and is not intended to replace advice from your prescribing clinician. If you are unsure which panel is right for you, get in touch and we will be glad to help.
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