Search results for (2023). Blood Tests: What They Are and Why You Need Them . NHS UK.

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• Colour vision deficiency (colour blindness)

  Find out about colour vision deficiency (colour blindness), what the symptoms are, where to get help, what the tests are, the causes, and the treatments.

• Symptoms of type 2 diabetes and how it's diagnosed

  Find out about the symptoms of type 2 diabetes, when to get medical help and what tests you might need.

• Low white blood cell count

  Find out about low white blood cell count.

• Phosphate test

  Find out when a phosphate test may be needed and what it's used for.

• Why cervical screening is done

  Find out why cervical screening is done and how it can protect you from cervical cancer.

• Chronic obstructive pulmonary disease (COPD) - Diagnosis

  Find out about the main tests used to diagnose COPD, including breathing tests, an X-ray and blood tests.

• Lactate dehydrogenase (LDH) test

  A lactate dehydrogenase (LDH) test measures the amount of LDH in the blood.

• Why an abortion is done

  Find out why an abortion is carried out and what support is available, before and after the procedure.

• Androgen insensitivity syndrome - Diagnosis

  Read about how androgen insensitivity syndrome (AIS) is diagnosed, including what tests may be done and testing during pregnancy.

• How often can I have a free NHS sight test?

  Find out how often you can have a free NHS sight test.