Price: From £179
Turnaround: 12 hours
Appointment: 15 minutes
General Health
How to Book a Same-Day Private GP Appointment in London
It’s common to need a GP appointment at short notice. Health concerns don’t always follow a schedule, and symptoms can
May 12, 2026
If you are constantly tired, even after a full night’s sleep, it can be a sign that your body is dealing with underlying health issues.
Fatigue can range from a mild sense of tiredness to a more persistent and overwhelming lack of energy that can affect your daily life.
That is why a fatigue blood test is so valuable. It can help find the root cause and offer a potential solution too.
A fatigue blood test is a group of tests that help find out what might be causing you to feel tired all the time. It checks for things like:
The greatest benefit of getting a fatigue blood test is that it can help pinpoint underlying health issues. Many of which you might not have even been aware of!
By identifying these issues early on, you have the opportunity to address those health concerns before they have a chance to worsen.
This proactive approach not only helps you manage your health more effectively but also allows you to take control of your energy levels.
Fatigue can be an early warning sign that something in your body needs attention. Finding the root cause of your fatigue early can actually help prevent further and future health complications.
Bear in mind that thyroid disorders, diabetes, and vitamin deficiencies are common health conditions; most of these can be more easily treated when diagnosed early. Appropriate treatment can also lead to significant improvements in these conditions.
Since more than half of people in the UK say they often feel very tired all the time, it may be worth investigating if you are one of them.
This test may be beneficial if you have been experiencing:
Use our online booking engine or book your test by giving us a call.
On the online booking engine select the “appointment type” you need.
You will be seen by one of our friendly phlebotomists or trained clinicians.
One of our London-based clinics may require fasting before your fatigue blood test. Remember to confirm with your healthcare provider if you need to avoid food or drinks (except water) beforehand. Whether fasting or not, always drink plenty of water before your test. Staying well-hydrated makes it easier to draw blood and helps prevent dizziness. Also, try to get a full night’s rest before your test, as fatigue-related tests may be more accurate when your body has had sufficient rest.
A blood sample will be drawn, usually from a vein in your arm. The process is super straightforward and brief. However, it can cause minor discomfort when the needle is inserted. If you are anxious, take deep breaths or look away during the blood draw to help you stay calm.
If you are fasting, make sure to eat a balanced meal and drink water after your fatigue blood test. This will help restore your energy. Your doctor will discuss what the findings mean for managing fatigue as soon as your results are in, and may suggest further tests or lifestyle changes based on the laboratory’s findings.
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No GP appointment requirement for blood tests
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We offer a wide range of private blood tests in London. Same-day appointments are available 5 days a week.
We work with experienced consultants & healthcare professionals who have received positive feedback from our patients, and with whom we have established long-term relationships.
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