Question

Leukopenia is the condition in which
(A) The total number of leucocytes decreases below ${ 4500 }{ / }{ cu }{ \quad mm }$.
(B) The total number of leukocytes increases above ${ 6000}{ / }{ cu }{ \quad mm }$.
(C) Bone marrow is destroyed
(D) Formation of leukocytes stop

Answer 1

Hint: In leucopenia, the immunity of the person is weakened and the person is now very prone to the infections. The cells which play a major role in the immune system are white blood cells.

Complete step by step answer:
Leukopenia is the condition in which the total number of leucocytes decreases below ${ 4500 }{ / }{ cu }{ \quad mm }$ . The normal range of leukocytes or you can say WBCs in the blood is 4,500 to 11,000 WBCs per microliter.
There are several differing types of leukopenia, depending on which kind of white blood corpuscle your blood is low in. Different type of white blood cells present in our body are basophils,
Eosinophils, lymphocytes, monocytes, and neutrophils.
Each type protects your body from different sorts of infections.
For example, If your blood is low in neutrophils, you've got a kind of leukopenia referred to as neutropenia. Neutrophils are the white blood cells that protect you from fungal and bacterial infections.
Another common sort of leukopenia is lymphocytopenia, which is once you have too few lymphocytes. Lymphocytes are the white blood cells that protect you from viral infections.
The presence of leukocytes in the urine indicated that there is an infection in the body and treatment should be started soon.
So, the correct answer is ‘(a) The total number of leucocytes decreases below ${ 4500 }{ / }{ cu }{ \quad mm }$.

Note: Many of us get confused between Leukopenia and Leukemia. There is a vast difference between both diseases. Leukemia is a blood cancer that is caused due to a rise in the number of white blood cells in our body.