Absolute Lymphocyte Count Calculator

To calculate the absolute lymphocyte count (ALC), you need to know two things: the total white blood cell count (WBC) and the percentage of lymphocytes in the differential white blood cell count.

The formula for calculating ALC is:

ALC = WBC count × % lymphocytes/100

For example, if the WBC count is 8000 cells/μL and the percentage of lymphocytes in the differential count is 20%, then the ALC would be:

ALC = 8000 × 20/100 ALC = 1600 cells/μL

Therefore, the absolute lymphocyte count in this example is 1600 cells/μL.

It's important to note that the ALC can vary based on various factors such as age, underlying health conditions, and medication use. A healthcare provider should always interpret the ALC results in the context of the individual's overall health status.

If lymphocytes are high, it is called lymphocytosis. There are many possible reasons why lymphocytes may be high, including:

1. Infections: A common cause of lymphocytosis is viral infections such as infectious mononucleosis, cytomegalovirus, and hepatitis.

2. Chronic lymphocytic leukemia: This is a type of cancer that affects the lymphocytes, causing an overproduction of abnormal lymphocytes.

3. Autoimmune disorders: Some autoimmune disorders, such as lupus and rheumatoid arthritis, can cause an increase in lymphocytes.

4. Medications: Certain medications, such as steroids, can cause an increase in lymphocytes.

5. Stress: Emotional or physical stress can cause an increase in lymphocytes.

6. Other conditions: Other conditions such as tuberculosis, lymphoma, and HIV infection can cause an increase in lymphocytes.

It's important to note that lymphocytosis is not always a cause for concern and maybe a normal response to certain situations such as an infection. However, in some cases, lymphocytosis can indicate a more serious underlying condition. Therefore, it's always best to consult with a healthcare provider for a proper diagnosis and treatment plan.

If the absolute lymphocyte count (ALC) is low, it is called lymphocytopenia. There are many possible reasons why ALC may be low, including:

1. Infections: Certain viral infections such as HIV and hepatitis, as well as bacterial and fungal infections, can cause a decrease in lymphocytes.

2. Medications: Certain medications such as chemotherapy drugs and immunosuppressive medications can cause a decrease in lymphocytes.

3. Autoimmune disorders: Some autoimmune disorders, such as lupus and rheumatoid arthritis, can cause a decrease in lymphocytes.

4. Bone marrow disorders: Bone marrow disorders such as aplastic anemia, myelodysplastic syndrome, and leukemia can cause a decrease in lymphocytes.

5. Radiation therapy: Radiation therapy can cause a decrease in lymphocytes.

6. Other conditions: Other conditions such as malnutrition, alcoholism, and stress can cause a decrease in lymphocytes.

Lymphocytopenia can increase the risk of infections and other health complications. However, the severity of the effects of lymphocytopenia may depend on the underlying cause and the individual's health status. Therefore, it's always best to consult with a healthcare provider for a proper diagnosis and treatment plan.