The Beginner's Guide to Ordering Lab Tests Online
Author : Christina Wood | Published On : 01 May 2026
Why People Are Ordering Their Own Lab Tests
There are several reasons someone might want to order a test without going through their regular GP. Some people are proactively monitoring their health. Others have concerns they want to investigate quickly. Some simply do not have a regular GP and need access to diagnostics through another route.
Whatever the reason, the ability to use labs tests online services puts more control in the patient's hands — which is often a good thing.
Step One: Decide What You Want to Test
The first step is identifying what you want to measure. This might be driven by symptoms — fatigue, for example, might suggest checking iron levels, thyroid function, or vitamin D. Or it might be preventative, such as an annual cholesterol or blood glucose check.
Most online lab platforms offer a range of preset panels grouped by health area (cardiovascular, hormonal, nutritional, etc.) as well as the option to request individual tests.
Step Two: Complete a Consultation or Questionnaire
To receive a lab request form, a doctor needs to approve it. On most platforms this involves either a short online consultation or a health questionnaire. The doctor reviews your information and confirms the tests are appropriate for you.
This step exists to protect you. It ensures someone with medical training is involved in the decision, which reduces the chance of inappropriate or redundant testing.
Step Three: Visit a Collection Centre
Once your request is approved, you take the form (usually digital or printed) to a collection centre. A phlebotomist draws the blood sample. The whole process typically takes less than fifteen minutes.
Fasting may be required for certain tests — particularly cholesterol and glucose. You will be told this in advance.
Step Four: Receive and Review Your Results
Results are usually available within one to three business days and are delivered through your account on the platform. Some services flag results outside the normal range clearly. Others provide a brief written interpretation.
If anything in your results is outside the expected range, it is worth discussing with a doctor — whether through the same platform or your regular GP.
A Few Things to Keep in Mind
- Lab results are one piece of information, not a diagnosis on their own
- Reference ranges are population averages — your doctor can help interpret what they mean for you
- Some tests require specific timing or conditions (fasting, time of day) to be accurate
- If you are managing an existing health condition, involve your regular GP in any testing decisions
