Top 10 Biomarkers Your GP Won't Test (And Why You Should)
Standard GP panels barely scratch the surface. These are the 10 most-requested advanced biomarkers Australians are now ordering privately, what each one tells you, and why they get left out of routine testing.
More Australians are taking control of their health, and the trend is clear: people want deeper insights than what a standard GP panel offers.
Traditional GP testing usually covers the basics like full blood count, lipids, liver function, and maybe iron if you ask. That is where it stops. If you want advanced biomarkers, detailed hormone analysis, or performance-based testing, you are often told something like:
What you might hear at a standard GP visit
- "You don't meet Medicare criteria."
- "It's not clinically indicated."
- "We will test one marker, but not the rest."
This leaves people frustrated and without answers. With MediTests, you can finally get the deeper insights you are looking for. No waiting. No begging for referrals. No Medicare restrictions.
The Top 10 Biomarkers, At a Glance
Each biomarker name links to the most relevant test category. Tap any row to explore what is covered.
| # | Biomarker | What It Tells You | Why GPs Skip It |
|---|---|---|---|
| 1 | ApoB Apolipoprotein B | A more accurate picture of cardiovascular risk than LDL cholesterol alone. | Not Medicare-funded unless you have specific risk factors. |
| 2 | hs-CRP High-Sensitivity C-Reactive Protein | A direct marker of inflammation. High levels affect energy, weight, recovery and long-term disease risk. | Considered nonessential for general check-ups. |
| 3 | Omega-3 Index Red blood cell omega-3 levels | Linked to better cardiovascular health, mental health and metabolic function. | Not part of standard pathology, treated as a lifestyle test. |
| 4 | Cortisol (AM & PM) Stress hormone | Closely linked to fatigue, anxiety, weight, sleep, recovery and training performance. | Hard to justify under Medicare without very specific symptoms. |
| 5 | Ferritin Full iron storage panel | Critical for women, athletes and anyone dealing with ongoing fatigue or low oxygen capacity. | Often only test haemoglobin unless you specifically ask for ferritin. |
| 6 | SHBG Sex Hormone Binding Globulin | Determines how much testosterone or oestrogen your body can actually use. Essential for understanding hormone balance. | Requires specific symptoms or fertility investigations under Medicare. |
| 7 | Free & Total Testosterone Male hormone panel | Affects mood, libido, strength, motivation, recovery and overall performance. | Must meet Medicare criteria for suspected low testosterone. |
| 8 | Estradiol (E2) Primary oestrogen | Influences mood, weight, cycle health, bone density and energy levels. Increasingly tracked by men too. | Typically only tested during fertility or reproductive investigations. |
| 9 | Reverse T3 The missing thyroid marker | Reveals how stress, illness or chronic fatigue may be slowing your metabolism. | Medicare does not consider it clinically necessary except in rare cases. |
| 10 | Fasting Insulin Early metabolic warning marker | High fasting insulin contributes to stubborn weight gain, cravings, fatigue and early metabolic dysfunction. | They usually rely on glucose or HbA1c, which can appear normal even when insulin is elevated. |
Want to test these markers yourself?
Browse all testsWhy Private Blood Testing Is Becoming the New Normal
People want answers, not barriers. Private blood testing in Australia is growing rapidly because it gives you:
More data than the standard panel
Standard GP testing only scratches the surface of what is happening inside your body.
Full control over what you test
No Medicare restrictions. No clinical justification required.
Faster turnaround times
Results delivered to your inbox in 24 to 48 hours.
Easy access nationwide
3,300+ accredited collection centres across Australia, walk in any time.
Better long-term tracking
Build a personal baseline and watch how your numbers change over time.
Same lab quality as your GP
NATA-accredited Australian labs, the same standard used in hospitals.
Where to Start Testing
Pick the panel that includes the biomarkers you care about most.
Health Checks
ApoB, hs-CRP, fasting insulin and more.
View tests →Hormones
Cortisol, SHBG, Reverse T3 and full panels.
View tests →Men's Health
Testosterone (free & total), SHBG, more.
View tests →Women's Health
Estradiol, ferritin, hormone panels.
View tests →Sports Bloodwork
Performance and recovery markers.
View tests →Longevity & Biohacking
Long-term health and ageing markers.
View tests →Individual Tests
Order single biomarkers like ferritin or omega-3.
View tests →Create Your Own
Build a panel with the exact markers you want.
View tests →Common Questions
Why doesn't my GP test these biomarkers?
Most GPs follow Medicare guidelines and can only order certain tests if you meet very specific criteria. Many advanced biomarkers are not routinely funded or considered clinically necessary, which limits what they can order.
Can I get these biomarkers tested without a referral?
Yes. With MediTests, you can choose any test you want without a consult or referral. Your request goes straight to the lab and results are sent to you directly.
How fast are the results?
Most results are delivered to your email within 24 to 48 hours after your sample is collected. Some specialised markers may take slightly longer, but the majority of panels are very fast.
Are private blood tests accurate?
Yes. MediTests partners with NATA-accredited Australian pathology laboratories that provide clinical-grade results identical to what you would receive through a GP.
Where can I get my blood drawn?
Walk into any of our 3,300+ accredited collection centres across Australia. Bring the referral PDF we email you after purchase, plus a valid photo ID. No appointment needed.
Should I show my results to my GP?
If you want clinical interpretation or are following up on something specific, yes. Your MediTests results come as a full original lab report, the same format your GP is used to reading. Many people use MediTests for proactive testing then bring the results to their GP for a more informed conversation.
Take Control of Your Health
Test what you want, when you want, without needing anyone's approval. Browse the full catalogue, build your own panel, or choose from our most popular packages.
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