Why bloods come before a health plan
Blood tests give your practitioner a baseline before building a plan. What common markers measure, and why not everyone needs them.
Bio Chain Clinic 3 min read
“Let’s get some bloods done” is one of the most common things a practitioner says, and one of the least explained. Here’s why blood tests often come before a plan, what a few common markers measure and why your practitioner might decide you don’t need them at all.
A baseline, not a verdict
How you feel matters, but it doesn’t tell the whole story. Two people with the same symptoms, such as low energy or poor sleep, can have very different things going on underneath.
Blood tests give your practitioner objective information to work with. They also create a baseline: a snapshot of where you are today that future results can be compared against. Without one, it’s hard to know whether a change in your plan is making any difference.
What some common markers measure
Every request is tailored to the person, so there’s no standard panel. Here are a few markers you might come across and what they look at:
- HbA1c: your average blood sugar over roughly the last three months.
- Lipids (such as LDL cholesterol): fats in your blood that relate to heart health.
- Ferritin: how much iron your body has in storage.
- Vitamin D: important for bones, muscles and immune function.
- TSH: a first check on how your thyroid is working.
- hs-CRP: a sensitive marker of inflammation.
A result outside the reference range isn’t automatically a problem, and a result inside it isn’t automatically a clean bill of health. Context matters, which is why your practitioner interprets results alongside your history rather than in isolation.
Why not everyone needs bloods
Testing for the sake of testing isn’t good medicine. Unnecessary tests cost time and money, and can turn up borderline results that cause worry without changing what you’d do next.
Your practitioner orders bloods when the results would genuinely inform your care. If your recent results are already on hand, or a test wouldn’t change the plan, they may skip it.
How it works in practice
If bloods are clinically relevant, your practitioner provides a pathology request. You visit an accredited collection centre near you. Some tests need fasting, and your practitioner will tell you if yours do.
Results usually come back within a few days. Your practitioner then walks you through each marker, explains what it means for you and uses it to shape your plan.
The bigger picture
Bloods are one input among many. Sleep, stress, activity, nutrition, medications and family history all count. A good plan brings all of it together, and that starts with a conversation.
See how a consult works, or explore our longevity and wellness care, where a proper baseline is the starting point.
This article is general information only and isn't medical advice. Everyone's situation is different, so talk to a registered health practitioner about yours. In an emergency, call 000.
