The Most Common Blood Tests That You Should Know

The Most Common Blood Tests That You Should Know

The Most Common Blood Tests That You Should Know
28 Apr 2021

Different factors contribute to our overall physical well-being. Amongst these factors, blood testing is one of the most important. Regular blood testing and screening can help determine how your body functions and help your healthcare professional make an informed decision about your general health.

The following blood tests are important tests people above 40 years should carry out yearly to identify any potential health issue and ensure a healthier life.


Getting a private blood test to check your fibrinogen levels can help identify heart disease and stroke. A high fibrinogen level identifies the risk of heart disease and inflammatory disorder, such as glomerulonephritis and rheumatoid arthritis. It also tends to increase the risk of mortality.  

However, the following can lower your fibrinogen level and improve your health.

  • Nutritional interventions

Specific diets can reduce high fibrinogen levels in the body. A diet containing vitamin A, folic acid, and niacin can help reduce fibrinogen level.

  • Behavioural and lifestyle changes

Changing your lifestyle and behaviour to accommodate physical activities that keep you active can lower your fibrinogen level. Specific lifestyle changes like quitting smoking and losing weight have a significant impact on your fibrinogen level.

Complete blood count and chemistry panel

A routine chemistry panel and complete blood test can prevent diseases by giving an insight into a patient's general health and helping the doctor know the right treatment to recommend. These screening give information about the blood cells, kidney, and liver. A full blood count test measures the concentration, amount, quality and variety of the blood platelets. It also checks for anaemia, infections and different blood conditions.

The chemistry panel test does the following.

  • Measures the blood glucose to help detect the early stages of diabetes and metabolic syndrome coronary artery disease
  • Provides information about the cardiovascular system by checking for total cholesterol, low and high-density lipoprotein.
  • Checks for essential minerals in the body such as potassium, iron, and calcium

Haemoglobin A1C

Haemoglobin A1C checks the average blood sugar level. It measures the blood sugar level over 2 – 3 months, which is important in assessing diabetes and heart disease risk.  A normal haemoglobin level in people with diabetes helps prevent complications from the disease.

Nutritional therapy can normalise the haemoglobin glucose level, so you can consult a dietician for nutritional treatment to lower the haemoglobin level.

Prostate-specific antigen (PSA)

PSA is a protein produces by the prostate gland in men. This test is performed on men to check for prostate cancer. A high level of PSA indicates prostate inflammation, prostate cancer and enlarged prostate. Although the prostate-antigen test is the common test for prostate cancer detection, high PSA is not always a sign of prostate cancer.  

Men in their 50s and above are at a high risk of developing prostate cancer, so healthcare experts advise men between 40 – 45 years to begin PSA testing to prevent any form of abnormalities in the body.  

According to recent research, the following can help reduce the risk of prostate cancer.

  • Natural therapies
  • Proper Mediterranean-type diet
  • Use of nettle root extract saw palmetto and pygeum


Dehydroepiandrosterone (DHEA) is a forerunner to female and male sex hormones. Testing for DHEA test can check for sexual disorders in female and male organs. High levels of DHEA may result from congenital adrenal hyperplasia, a group of diseases resulting from the adrenal glands' inability to produce glucocorticoids.

 Different natural therapies can help keep DHEA at a normal level, while patients with oestrogen-related cancers like breast or prostate cancer do not need DHEA.


The body produces homocysteine during methionine metabolism. High homocysteine levels may indicate poor cognitive and bone function and an increased risk of heart cancer.  It could also increase the risk of bone fractures.

Natural remedies and vitamins, such as vitamin B6 and B12, can also help keep homocysteine level in the normal range.  

C-reactive protein

Research in the past showed that inflammation in the body might lead to different life-threatening diseases such as muscular degeneration, cognitive decline, and heart disease. Testing for C-reactive protein in the body can detect internal inflammation. This protein is a sensitive marker that predicts coronary disease and other cardiovascular system diseases.

High levels of C-reactive protein is linked to increased risk of coronary heart disease within ten years, whether cardiac risk factors are present or not, high risk of type II diabetes. It is also an independent risk factor for age-related macular degeneration.

Thyroid-stimulating hormone

The thyroid-stimulating hormone controls the secretion of the thyroid in the body. When the level of blood in the body is below the average, it indicates a low thyroid activity. A test for thyroid-stimulating hormone is the best test to assess the body's thyroid function.

If your thyroid activity is low, you can use natural therapies to normalise your TSH level and support thyroid function in the body.


Testosterone production occurs in women's ovaries, men's testes, and men and women's adrenal glands. This means that men and women can suffer from insufficient testosterone levels due to ageing. The function of testosterone differs in men and women.

  • In men

The level of free testosterone in men helps evaluate the level of bioactive testosterone, check for mental depression, osteoporosis, and heart disease. Ageing in men causes a reduction in testosterone levels, leading to different health conditions such as loss of muscle tone, low libido, depression, erectile dysfunction and increased abdominal syndrome.

  • In women

Women with low testosterone levels suffer from depression, reduced healthy living, and low libido. Menopause causes a significant decrease in testosterone levels, leading to mood changes and affects general well-being.  

Although women produce lower levels of testosterone, it helps maintain muscle strength and sexual function. A normal level of testosterone in women supports cardiovascular wellness and healthy moods.  


Like testosterone, women and men need oestrogens to maintain optimal physiological function. Oestradiol circulates oestrogens in the body and serves as an indication for pituitary and hypothalamic function.

Generally, men procedure less oestradiol from the adrenal steroid hormone and testosterone, while women produce the hormone from the peripheral tissues, ovaries, and adrenal glands. Different studies suggest that low levels of oestradiol increase the risk of vertebral fractures.

Visiting your private GP often for blood test service is important to assess your health and help you remain healthy. It may sound stressful, but getting a blood test only takes a few minutes.

Visit our private GP today at Suite 15, 117A Harley Street, London, W1G 6AT, UK for your blood tests or call London GP Clinic now on 020 7043 4318 to schedule an appointment for a routine blood test.