Complete Blood Count

No, fasting is not required for the CBC test. You can eat and drink normally before the test.

A doctor may recommend a CBC test as part of a routine check-up or if you are experiencing symptoms such as fatigue, weakness, fever, bruising, or weight loss, which could indicate a problem with your blood.

The CBC test measures the levels of different blood cells including red blood cells, white blood cells, and platelets. It also provides information on hemoglobin levels, hematocrit, and the size of the red blood cells.

The frequency of CBC testing depends on your health and any underlying conditions. Some people may need it annually as part of a routine check-up, while others may need it more frequently if they have a health condition that requires monitoring.

Normal values can vary, but generally, the normal ranges are: Red blood cells: 4.5 to 5.5 million per microliter (mcL) for men, and 4.0 to 5.0 million/mcL for women. Hemoglobin: 13.5 to 17.5 grams per deciliter (g/dL) for men, and 12.0 to 15.5 g/dL for women. White blood cells: 4,500 to 11,000 cells/mcL. Platelets: 150,000 to 450,000 cells/mcL.

There are no specific precautions you need to take for a CBC test. However, it's a good idea to wear a short-sleeved shirt for easy access to your arm.

Modifiable factors like diet, exercise, smoking, and alcohol consumption can affect blood cell levels. Non-modifiable factors include age, genetics, and underlying health conditions.

If your CBC test results are abnormal, you should consult a doctor for further evaluation and guidance. The doctor will interpret the results in the context of your overall health and may recommend additional tests or treatments.

Yes, certain medications, including over-the-counter drugs and supplements, can affect the results of a CBC test. It's important to tell your doctor about all the medications and supplements you are taking.

Low red blood cell counts can indicate anemia, which can be caused by various factors including nutritional deficiencies, chronic diseases, or bone marrow problems.

High white blood cell counts can indicate an infection, inflammation, an allergic reaction, or a disorder of the blood cells such as leukemia.

The CBC test involves a simple blood draw, which may cause a slight pinch or discomfort when the needle is inserted into the vein. Most people do not find the test very painful.

Yes, you can usually resume your normal activities immediately after the CBC test.

A CBC focuses on the cells in the blood, while a blood chemistry test measures different chemicals and substances in the blood, such as glucose, electrolytes, and proteins.

A CBC test alone cannot diagnose cancer, but it can provide information that suggests further testing is needed. For example, abnormal white blood cell counts might indicate leukemia.

If you have abnormal values in your CBC test, you should first consult the doctor who ordered the test. Depending on the results, you may be referred to a hematologist or another specialist.

The Complete Blood Count test is an essential diagnostic tool that provides valuable information about your health. It is a simple and quick procedure that requires no specific preparation. The results can help your doctor diagnose and monitor a wide range of health conditions. Regular CBC tests may be an important part of maintaining your health. If you have questions or concerns about the CBC test, or if you have received results that you do not understand, it is important to discuss them with your doctor.