Question

Arneth count is counting of
A. Lymphocyte
B. Granules of eosinophil
C. Lobes of neutrophil
D. WBC in bone marrow

Answer 1

Hint: White blood cells or WBC also known as leukocytes or leucocytes.
They are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign particles.
The normal range is usually between 4,000 and 11,000 per microliter of blood.

Complete answer:
In order to solve this question, we need to know more about WBC and types of WBCs.
White blood cells are the cells of the body’s immune system which help us to fight against the foreign particle or infectious diseases.
There are different types of white blood cells, and blood usually contains a percentage of each type.
Sometimes, white blood cell count can fall or rise out of the normal range.
White blood cells arise in the bone marrow but circulate throughout the bloodstream.

There are five major types of WBCS:
- Neutrophils
- Lymphocytes
- Monocytes
- Basophiles
- Eosinophils

Normal count of WBCs is:
- Newborn = 9,000 to 30,000
- Children below = 6200 to 17,000
- Children above 2 and adult = 5,000 to 10,000

Normal percentage of types of Wbcs is as follows:
- Neutrophils = 55 to 73%
- Lymphocytes = 20 to 40%
- Monocytes = 2 to 8 %
- Eosinophils = 1 to 4%
- Basophils = 0.5 to 1%

- Arneth count tells us about the nucleus of a type of WBC (neutrophil) in an attempt to detect disease.

- The Arneth count determines the percentage of neutrophils with one, two, three, four, and five or more lobes.

- Individuals who have a larger percentage of neutrophils with lesser no of lobes have a left shift which can be indicative of disease such as infection, malignant tumors, hemolytic crisis, myocardial infarction, acidosis, etc.

- Individuals with a larger percentage of neutrophils with more no of lobes have a right shift and most commonly have diseases such as vitamin B12 or folate deficiency, chronic uremia, liver disease, etc.
Arneth count is named after a scientist named Joseph Arneth.

So, correct option is option C. lobes of neutrophils.

Note: Leukocytosis indicates high WBC count.
When count is above 10,500 in a microlitres of blood is considered to be high WBC count
It can be triggered by the following causes:
- Smoking
- Leukemia
- Tuberculosis
- Tumor in bone marrow
- Stress
- Exercise
- Corticosteroids