Need the most accurate testosterone measurement possible for confident diagnosis, especially if previous results were borderline, inconsistent, or you're taking medications that might interfere with standard testing?
Want a clear picture of your hormone balance? Testosterone is vital for energy, muscle mass, libido, and overall health in both men and women. This LCMS test gives highly accurate results and may help assess fertility, sexual health, and hormone-related symptoms. For men on testosterone or performance therapies, LCMS testing is especially important, as it provides reliable readings even when testosterone levels are higher than normal.
(not available in NT)
You will be emailed a referral to take to your local collection centre. If you ever have any questions, we're here to help.
Think of LCMS testosterone testing as having a molecular detective with a perfect track record – it can precisely identify and measure your testosterone levels without getting confused by other similar hormones or medications that might throw off regular tests. While standard testosterone tests are convenient and widely used, they sometimes mistake other substances for testosterone or get interference from supplements and medications, potentially giving you inaccurate results that could lead to the wrong treatment decisions.
This advanced testing method works like a two-step verification system: first, it separates testosterone from everything else in your blood sample, then it confirms the identity using molecular fingerprinting technology. This gold-standard accuracy becomes especially important when your testosterone levels are borderline, when you're monitoring hormone therapy, or when previous test results didn't match how you're feeling. LCMS testing is particularly valuable for women (who naturally have much lower testosterone levels where precision matters most), anyone taking medications that might interfere with standard tests, or when you need rock-solid accuracy for legal or athletic purposes – ensuring your treatment decisions are based on the most reliable measurements possible.
Reviewed by Dr. Vu Tran Bloody Good’s Chief Medical Officer
You may benefit from the Testosterone (LCMS) Blood Test
Essential for women requiring precise testosterone measurement, individuals with borderline results needing confirmation, those taking interfering medications, monitoring hormone replacement therapy, research purposes, or when maximum accuracy is required for treatment decisions.
Low sex drive in men
Erectile dysfunction
Loss of muscle mass in men
Increased body fat around waist (men)
Decreased morning erections
Infertility in men
Feeling tired all the time
Feeling sad or down most of the time
How to prepare
Morning collection (7-10 AM) critical for accurate assessment. No fasting required. Avoid biotin supplements for 3 days before testing. List all medications and supplements as some may require special consideration for LCMS analysis. Inform laboratory of any previous inconsistent results or suspected interference issues.
Understanding results
Reference ranges identical to standard testosterone but with superior accuracy: Men: Age-adjusted ranges 9-25 nmol/L; Women: 0.7-2.8 nmol/L. LCMS results are considered definitive and used to resolve discrepancies from immunoassay testing. Results provide confidence for treatment decisions due to superior analytical specificity.
After the test
Use LCMS results as definitive assessment for hormone replacement therapy decisions. If results differ significantly from previous immunoassay testing, consider LCMS as more accurate. Proceed with treatment decisions based on LCMS values combined with clinical symptoms. Regular LCMS monitoring recommended for hormone replacement therapy optimization.
Frequently Asked Questions
LCMS physically separates and identifies testosterone molecules, eliminating cross-reactivity with similar hormones that can interfere with immunoassay methods, providing true testosterone-specific results.
Choose LCMS for borderline results, women's testing, medication interference concerns, monitoring hormone therapy, research purposes, or when maximum accuracy is essential for treatment decisions.
Yes, LCMS typically costs more than immunoassay testing, but the superior accuracy often justifies the expense, especially for critical diagnostic or monitoring situations.
LCMS is considered the reference method with accuracy within 2-3%, compared to immunoassays which can have 10-20% variability due to cross-reactivity and interference issues.
Yes, LCMS has superior sensitivity and specificity at low concentrations, making it particularly valuable for women's testing and detecting subtle deficiencies in men.
Preparation is similar to standard testosterone testing, but inform your provider about all medications and supplements as some may require specific timing considerations for optimal accuracy.
You will be emailed a referral to take to your local collection centre. If you ever have any questions, we're here to help.
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1
Book your test
Choose the testing that suits your goals. After ordering, you will receive your referral by email.
2
Collect your samples
Have your sample collected at one of our 4000+ partner collection centres.
3
View your results
View your lab results and receive a personalised review from the secure Bloody Good platform.
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Frequently Asked Questions
Find answers to common questions about our products and services.
Most collection centres accept walk-ins. Some may require a booking - check details when you click on your chosen location.
If your test needs fasting, we’ll include that in your instructions after you order. Fasting usually means no food for 8–12 hours, but water is fine.
Just your pathology referral form (we email it to you)
Of course. Just maybe don’t bring the friend who faints at the sight of blood.
They’re the highly trained professionals who take your blood sample - with a steady hand and a sharp needle. They love blood, but don’t worry… they’re not vampires. Just legends who make blood tests quick, clean, and (almost) painless.
Some of our tests include Urine, Stool, Saliva and more. Each test will have a clear description on what sample you will need to give and instructions on how.
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