Urooj Niazi 
What Is TLC in Blood
Total Leukocyte Count (TLC) is a vital blood test, which is used to measure the number of white blood cells (WBCs) in a given amount of blood. The meaning of TLC in blood can make you understand your reports in a better manner.These cells make an essential part of the immune system and assist the body to fight infections, inflammation, and alien intruders, Knowing your TLC level is significant as it is the indicator of your immune health and it may determine underlying medical conditions. Doctors commonly use a TLC test to diagnose infections, immune disorders, and bone marrow disease as well as to follow-up treatment of patients with chronic conditions.
What Is TLC in Blood?
TLC in blood is abbreviated as Total Leukocyte Count, which is a derived value that shows the quantity of white blood cells in the circulatory blood. Such cells begin in the bone marrow and have the leading position in the protection of the body against disease-causing microorganisms like bacteria, viruses, and fungi. WBCs tend to vary in number when there is a health threatening situation, causing them to increase during inflammation or during illness or when there is immune suppression.
Normal TLC Range
In the case of adults, they are normally within the normal TLC range of 4000 to 11000 WBCs/ml of blood. The range, however, can deviate a bit depending on the laboratory, age, lifestyle and the health of that specific individual. Maintaining TLC in this level signifies a healthy immune system.
Causes of High TLC (Leukocytosis)
Key indicators of an active infection or inflammation in the body are a high TLC level. It can also be the result of stress, smoking, intense exercise, allergic reactions or some medicines. Cases of continuously high TLC can sometimes be a sign of some severe complications such as blood disorders or leukemia.
Causes of Low TLC (Leukopenia)
Weakened immunity can be manifested by a low TLC level. The causes can be autoimmune diseases, suppression of the bone marrow, viral infections, chemotherapy, radiation and chronic diseases. Low TLC needs close attention as it makes the body more susceptible to infections.
Diagnostic Importance of TLC Test
TLC test is an essential medical instrument and can be used by doctors to determine the immune status of a patient. It is always applied in the detection of infections, the follow up of chronic conditions, and the effectiveness of the treatment of different conditions like cancer, HIV/AIDS, or bone marrow conditions. TLC monitoring regularly helps to diagnose and provide medical treatment in time.
