Blood cells (1 Biomarker)

A full blood count (FBC) provides valuable insights into your overall health and can help detect conditions such as anaemia, infections, and leukaemia. This test examines your red blood cells, white blood cells, and platelets. It’s important to note that full blood counts can only be performed through an in-store appointment, as they cannot be conducted using finger-prick samples.

Full blood count (FBC)

The full blood count delivers detailed information about different blood cells, including:

Red blood cells (RBCs): These cells contain haemoglobin, responsible for carrying oxygen to the tissues throughout the body.

White blood cells (WBCs): These cells are vital for immune function, defending the body against harmful invaders such as viruses and bacteria.

Platelets: Essential for blood clotting.

FBC tests are commonly used as a screening tool for a range of conditions, including infections and anaemia.

Iron studies (5 Biomarkers)

Iron studies involve a group of blood tests designed to assess the amount of iron circulating in the blood and stored in the body’s tissues. Iron deficiency can cause a variety of symptoms, including fatigue, chest pain, and shortness of breath.

Iron

Iron is a vital mineral required for the production of red blood cells, which transport oxygen throughout the body. It plays a crucial role in muscle function, bone marrow health, and the operation of organs. Measuring iron levels reveals how much iron is present in the blood, with low levels indicating anaemia and high levels potentially suggesting liver disease.

Total iron-binding capacity (TIBC)

Total Iron-Binding Capacity (TIBC) measures the maximum amount of iron that can be transported through the blood. Since iron is critical for oxygen transport, TIBC is used to assess how well iron is being absorbed and processed. This test can help diagnose conditions like anaemia or iron overload disorders, such as haemochromatosis. TIBC may also be affected if you have liver disease.

Unsaturated iron-binding capacity (UIBC)

Unsaturated Iron-Binding Capacity (UIBC) measures the transferrin that remains available for iron transport. This test helps monitor treatment for iron toxicity and provides insight into how much iron is still available to be carried by the blood.

Transferrin

Transferrin is a glycoprotein that is produced in the liver, and it binds to iron and helps transport it in the blood, playing a crucial role in oxygen delivery throughout the body. Transferrin tests are used to assess iron status and can be helpful in diagnosing conditions like anaemia.

Creatine kinase

Creatine Kinase is an enzyme found primarily in the heart and skeletal muscles, with smaller amounts in brain tissue. Testing creatine kinase levels can help diagnose and monitor muscular disorders, such as muscular dystrophy, and track muscle injuries.

Thyroid (2 Biomarkers)

Thyroid disorders are fairly common but can often go undetected. An underperforming thyroid can lead to symptoms such as fatigue, weight fluctuations, and mood changes.

Thyroid-stimulating hormone (TSH)

Thyroid-stimulating hormone (TSH) is produced by the pituitary gland in the brain and is responsible for stimulating the thyroid gland, which is located in the throat area. The hormones released by the thyroid help regulate body temperature, weight, and muscle strength. Measuring TSH levels is a key indicator for diagnosing thyroid disorders and is often tested alongside Free T4 and Free T3.

Free T4 (thyroxine)

Free T4, also known as free thyroxine, is a hormone created by the thyroid gland. This hormone plays a vital role in functions such as metabolism and growth. Testing Free T4 levels can assist in diagnosing thyroid conditions like hypothyroidism and hyperthyroidism and can also help with understanding causes of female infertility. Free T4 is frequently tested in conjunction with TSH and Free T3.

Vitamins (1 Biomarker)

Vitamins are essential substances required by the body to support normal cell function, growth, and development. A deficiency in vitamins can lead to a range of symptoms and health issues.

Vitamin D

Vitamin D plays a crucial role in regulating the absorption of calcium and magnesium from the digestive tract, and it is essential for maintaining healthy bones and supporting bone growth. It is obtained from two main sources: through food and supplements or by being produced in the skin after exposure to sunlight. Testing for vitamin D levels helps detect deficiencies and can also assist in monitoring conditions that affect fat absorption, such as Crohn’s disease.

FAQs

What could be causing my constant tiredness?

Ongoing fatigue can be caused by a range of underlying factors, many of which are linked to deficiencies in essential nutrients. Low levels of iron, vitamin D, or vitamin B12 are common contributors to feeling persistently tired, as these nutrients play crucial roles in energy production and overall health. In addition to these deficiencies, other potential causes could include thyroid imbalances or chronic conditions like anaemia. A routine blood test can help identify these issues by measuring important biomarkers, enabling your doctor to provide tailored recommendations and treatments to help improve your energy levels and overall wellbeing.

How does the thyroid impact my energy?

Your thyroid gland plays a vital role in regulating many essential processes within your body, particularly those related to metabolism. When your thyroid is underactive (a condition known as hypothyroidism), it can significantly slow down your metabolism, which in turn reduces your body’s ability to convert food into energy efficiently. This often leads to a persistent feeling of fatigue, weight gain, and an overall lack of energy. You may find yourself needing frequent naps, struggling to stay awake during the day, or feeling too drained to participate in daily activities or exercise. Addressing thyroid issues through proper medical evaluation can help restore your energy levels and improve your quality of life.