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What is a CPB blood test?

Published in Blood Test Analysis 3 mins read

A CPB, or more accurately, CBP (Complete Blood Picture) blood test is a very common diagnostic test that evaluates the components of your blood.

What Does a CBP Blood Test Measure?

The primary purpose of a CBP test is to ensure that the main types of blood cells are within their normal ranges. Specifically, it looks at:

  • Red Blood Cells (RBCs): These cells carry oxygen throughout your body. The test checks their quantity and size.
  • White Blood Cells (WBCs): These cells are part of your immune system, fighting off infections. The test measures their total count as well as the count of different types of WBCs.
  • Platelets: These cells are essential for blood clotting. The test checks their number.

Why is a CBP Test Performed?

According to the reference, a CBP test helps healthcare professionals ensure the count of RBCs, WBCs, and platelets are within the permissible limits. It's often part of a routine health check-up, but it can also be ordered if you're experiencing symptoms that might indicate a blood disorder or infection.

Here are some scenarios when a CBP test might be done:

  • Routine Checkup: As part of a regular medical exam.
  • Symptoms of Infection: To help diagnose bacterial, viral, or fungal infections.
  • Anemia Evaluation: To check for iron deficiency or other causes of low red blood cell counts.
  • Monitoring Treatment: To assess how well treatments for blood-related conditions are working.
  • Pre-Surgery: To evaluate a person’s overall health before surgery.

What Can Abnormal CBP Results Indicate?

An abnormal result on a CBP blood test can suggest a variety of conditions. For example:

  • High WBC Count: This could indicate an infection or inflammation.
  • Low WBC Count: This might be a sign of a bone marrow problem or autoimmune disorder.
  • Low RBC Count: May point towards anemia.
  • High RBC Count: Could suggest polycythemia, a condition where the body produces too many red blood cells.
  • Abnormal Platelet Count: Either high or low platelet levels may indicate a bleeding disorder or a risk of blood clots.

In Summary

The Complete Blood Picture (CBP) blood test, also sometimes mistakenly referred to as CPB, is a foundational diagnostic tool. It assesses the different types of blood cells—red blood cells, white blood cells, and platelets—ensuring their levels are within healthy ranges. This test is crucial for both routine health monitoring and identifying possible underlying conditions.

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