Total Leucocyte Count (TLC) Test: What is the Normal Range in Males and Females?

Medically Reviewed by:Dr. Kanika
Total Leucocyte Count (TLC) Test: What is the Normal Range in Males and Females?

The total leucocyte count is one of the widely used tests in blood analysis that reveals much about the immune system. This test measures how many white blood cells (WBCs), which are the body’s soldiers fighting off diseases, are present in the patient’s blood. In light of the above findings, it is clear that by appreciating the normal TL range and the factors that affect it, as well as the consequences arising from either a high or low range, the common health status of the people can be more comprehensible.

What is TLC (Total Leucocyte Count)?

TLC stands more for the overall total amount of white blood cells in the entire test tube or a specific volume of blood. For protection, you have white blood cells-a diverse army of cells and among them, there are clear types, each of which has a specifically assigned immunity. Some of the types of WBCs include; neutrophils, lymphocytes, monocytes, eosinophils, and basophils. Together, they form an important aspect of the body’s immune system and help to shield the body from any invading pathogen.

TLC (Total Leucocyte Count) Normal Range By Age And Gender

The typical human TLC level varies with age, sex, and other unique aspects of the human body. Normally, the number of adult TLC values ranges from 4000 to 11000 in the microliters of the blood. Nevertheless, these numbers can be rather differentiated in different laboratories.

  • Adults: The normal count of these is within a range of 4,000 and 11,000 WBC per microliter of blood.
  • Children: These children may present higher TLC values because of this lesser and developing immune system.
  • Gender: Sometimes there is a difference between tlc normal range in males and females but the span is not that different.

Any lab results should be discussed with the healthcare provider to get prompt treatment for any underlying medical condition.

Factors Influencing TLC (Total Leucocyte Count)

Several factors can impact the TLC, including:

  • Infections: In cases where the body is attacked by an infection WBC count tends to rise so as to counter the infection attack.
  • Inflammation: TLC is also typically high under conditions of chronic inflammation.
  • Stress: Stress may be due to an ailment or a daily and/or weekly way of living, and may bring a temporary rise to the WBC count.
  • Medications: TLC is affected by drugs that include corticosteroids and chemotherapy agents that may raise a patient’s TLC count.
  • Medical Conditions: Disorders such as Myelodysplastic Syndrome, Lymphoma, Leukaemia, HIV/AIDS, and many others affect the WBC by damaging the bone marrow, immune system, and blood tissue.
  • Pregnancy: TLC also varies with pregnancy since hormonal changes during pregnancy have an effect on it.

How is the TLC Test Conducted?

To perform a Total Leucocyte Count (TLC) test, a healthcare professional typically follows these steps: 

  • Preparation: TLC test does not require any special preparation although the doctor may advise the patient to abstain from sexual activity for at least 2 days before the test. However, let your healthcare provider know about any medications you are taking as they may affect the test results.
  • Blood Collection: It involves the use of a butterfly needle and the sampling is done from a vein, preferably in the arm. This is done with the help of a tourniquet that is placed around the wrist for a few seconds to bring the vein in more relief. When the area is cleaned using an antiseptic a needle is then used to collect the blood from the vein.
  • Sample Collection: Anticoagulant is not normally used when blood is collected for a culture, and after that, the blood is put on a sterile vial or tube.
  • Laboratory Analysis: The blood sample is taken to a laboratory and through the help of technology some technicians are able to count the number of white blood cells.

The process as a whole is fairly swift and the invasiveness of the procedures involved is kept to a minimum.

When Should One Visit A Doctor ? 

If your test results strays beyond the normal range, then it is advisable that there may be a health problem. It's essential to consult a healthcare provider if you experience any of the following symptoms:

  • Recurrent or persistent infections: It can also be interpreted as a sign that the immune system of a person is not in order if there are often or constantly arising infections.
  • Unusual fatigue or weakness: By this time, the tiredness should warrant the attention of a doctor if it is hindering one from pursuing his/her usual endeavors.
  • Easy bruising or bleeding: Frequent bleeding or soggy bruises are one of the symptoms of low platelet count and other blood-related diseases.
  • Swollen lymph nodes: Lymph nodes that are swollen can sometimes point to a disease or an illness of some form.
  • Persistent fever: Febrile illness lasting for many days should be checked by a doctor or any other qualified personnel in the health sector. 

Conclusion

The Total Leucocyte Count (TLC) test is a crucial gateway to the immune system’s health as a general health check-up of the body’s condition. The TLC test gives the healthcare provider a numerical value of the number of white blood cells and that information can pinpoint infections, inflammation, and other illnesses. Through gaining knowledge on aspects that may affect TLC, persons can know when a variation in the white blood cell count is appropriate for a visit to a healthcare provider. It is therefore important that one seeks medical advice anytime their TLC does not fall within the normal range. Last but not least, the TLC test used in combination with other tests helps in managing one’s health and fitness effectively.

Frequently Asked Questions (FAQs)

Q1. What is the TLC test?
A:
The TLC test measures the total number of white blood cells (WBCs) in your blood. WBCs are part of your immune system and help fight infection.

Q2. What is the normal TLC range?
A:
The normal TLC range for adults is typically 4,500 to 11,000 WBCs per microliter of blood. This range can vary slightly between laboratories. Children may have higher TLC values.

Q3. Is there a difference in the normal TLC range for males and females?
A:
There is no significant difference in the normal TLC range for males and females.

Q4. What does it mean if my TLC is high or low?
A:
A high TLC can indicate an infection, inflammation, or other health conditions. A low TLC can suggest problems with your bone marrow or immune system. However, interpreting TLC results is best done by a doctor who can consider all your individual factors and medical history.

Q5. How is the TLC test performed?
A:
The TLC test is a simple blood test and is performed by drawing a small amount of blood from your arm.

Q6. Is there any special preparation needed for the TLC test?
A:
In most cases, there is no special preparation needed for the TLC test. However, your doctor may advise you on specific instructions depending on your circumstances.

Q7. Is the TLC test painful?
A:
The TLC test is a minimally invasive procedure. You may feel a slight prick when the needle is inserted for blood collection.

Q8. What can I do to keep my TLC healthy?
A:
Maintaining a healthy lifestyle can support your immune system and potentially influence your TLC. 

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