Diagnostic tests and scans

A biopsy helps your doctor diagnose a medical condition. Find out more about what they are, different types of biopsies, and why you need a biopsy.

From the fasting blood glucose test to the prostate (PSA) test, there are many kinds of blood tests. Browse the index and learn how to prepare for your test.

A cervical screening test looks for the human papillomavirus (HPV). Regular screening helps to protect you from getting cervical cancer.

During a colonoscopy, a tube is inserted into the anus to view the inside of the large bowel to help diagnose or treat some medical conditions.

A computed tomography (CT) scan is a 3D image of your body. It’s generated by a machine that moves around you. Learn more about CT scans here.

To find out how well your heart is working, your doctor may order an electrocardiogram (ECG). Learn more about the ECG test, also known as EKG.

An electroencephalogram, or EEG, measures brain activity to diagnose or monitor conditions such as epilepsy. Learn more about this diagnostic test.

A gastroscopy is a procedure to look inside your oesophagus (food pipe) and stomach. Find out what happens during a gastroscopy and when it is done.

Regular eye tests can pick up problems before you have any symptoms. You don't need a referral to see an optometrist. Learn more about eye tests here.

Hearing tests check and measure hearing loss. Read on to learn about who needs one, the types of tests available and how to arrange a hearing test.

An MRI scan uses magnets, radio waves, and a computer to image your body's soft tissues. Read about benefits, process and potential complications.

A positron emission tomography (PET) scan is an imaging test used to diagnose certain diseases. Find out what the scan involves and how it works.

Stool (poo) tests are commonly used to check for bowel cancer and causes of gastrointestinal illness. Read more about stool testing and results.

An ultrasound scan creates a real-time picture of the inside of the body using sound waves. Learn about uses, types, and preparation for ultrasounds.

Urine tests are used for many different reasons. They can diagnose conditions, such as pregnancy, infections, diseases and screen for drug use.

An x-ray uses radiation to create a picture of the inside of your body. The x-ray beam is absorbed differently by body structures to create the image.