Published: 5 Mar 2024

When and Why Blood Tests are Important

It is crucial to consult with your doctor if you have concerns about blood tests and why they are not routinely required for you.

Based on blood test results and the severity of any underlying illness, your doctor may recommend a treatment plan. This helps the doctor explain potential risks and side effects.

Blood samples are typically drawn from a vein in the arm. For children, a numbing cream may be used to minimize discomfort.

Even if all test results come back normal, you may still have questions about the possibility of underlying abnormalities. It is important to discuss any concerns with your doctor to alleviate any anxiety related to blood tests.

Preparation for Blood Tests

Blood tests are typically performed by a hematology department in a hospital or diagnostic center.

In some cases, fasting is required before the test. Other times, you may be instructed to eat at a specific time. Consult with your doctor for specific preparation instructions.

Some tests may need to be repeated multiple times at specific intervals.

Additional Information on Blood Tests

Blood tests are used for pharmacogenomics, where studies on blood samples help researchers understand the effects of experimental drugs on genetic material and other body functions.