Diagnostic test

Diagnostic test is a type of medical test performed to aid in the diagnosis or detection of disease. These tests can also be used to monitor the progress of disease, and to check the effectiveness of treatment.

Types of Diagnostic Tests

There are many types of diagnostic tests. They include:

• Laboratory tests: These are tests that analyze samples of blood, urine, or other tissues or substances in the body.
• Imaging tests: These tests produce pictures (images) of areas inside the body. Imaging tests include CT scan, MRI, X-ray, and ultrasound.
• Genetic tests: These tests look for certain gene abnormalities that might indicate an increased risk for certain health problems.
• Pathology tests: These tests involve the examination of body tissues under a microscope to check for abnormal cells or tissues.

Purpose of Diagnostic Tests

The main purpose of diagnostic tests is to find out what's causing a person's health problem. By finding out the exact cause, doctors can choose the best treatment for the patient's condition.

Risks and Benefits

Like all medical procedures, diagnostic tests have risks and benefits. The benefits of diagnostic tests include:

• Helping doctors diagnose diseases
• Helping monitor the progress of disease
• Helping check the effectiveness of treatment

The risks of diagnostic tests can include:

• False positive results, which can lead to unnecessary treatment
• False negative results, which can delay treatment
• Physical risks, such as radiation exposure from imaging tests

See Also

• Medical test
• Laboratory test
• Imaging test
• Genetic test
• Pathology test

Diagnostic test Resources
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