What can a blood test tell me?

Blood tests have a variety of uses and are one of the most common types of medical tests. It’s likely that you’ll have a blood test at some point in your life, as they can give an indication of your overall health and any possible conditions.

As we now offer a range of Agilis Health Assessments, which involve a blood test, we’re exploring what blood tests are and what they can show you.

What is a blood test?

Blood tests usually involve taking a sample from a blood vessel in your arm via a needle and syringe. Other blood tests involve a finger prick and capturing blood in a vial.

Why do people get blood tests?

They can give an indication of your overall health and infections. But that’s not all blood tests can be used for.

A blood test can:

  • Show how well certain organs, such as the liver and kidneys, are functioning
  • Help diagnose diseases and health conditions
  • Help identify allergies
  • Indicate if your immune system is working as it should be
  • Monitor chronic health conditions and diseases
  • Screen for genetic conditions

What are the most common blood tests and what do they show?

Full blood count

A full blood count can be used to evaluate overall health. This test will give insight into a wide range of disorders including indication of anaemia, vitamin B12 deficiency and infection.

The full blood count works by measuring different levels in your blood, including:

Red blood cell level

White blood cell level

Haemoglobin – oxygen carrying protein in red blood cells

Blood glucose (blood sugar) test

There are a few different types of blood test which can be used to monitor blood glucose levels. Blood glucose levels are monitored to help reduce and manage symptoms of diabetes. Blood glucose tests can also give early indication of prediabetes, so you can work on preventing the condition from developing.

The types of blood test include:

A glucose tolerance test, which is taken after fasting and again after glucose consumption.

An HbA1C test, which gives an indication of your glucose levels over the last few months.

Liver function test

A liver function blood test checks for enzymes and proteins within your blood. When your liver isn’t functioning as it should, it releases higher amounts of enzymes into your blood and proteins produced by your liver reduce.

Thyroid function test

This test checks for levels of thyroid-stimulating hormone (TSH) within your blood. If the levels of TSH are too high or low, they could indicate that you have an over or underactive thyroid.

Find out more

All Agilis Health Assessments come with a finger prick blood test that you can administer from the comfort of your own home. If you’d like to get a clear indication of your health and actionable advice, you can book your assessment today.