General Knowledge - Basic General Knowledge - Discussion

The red blood cell (RBC) count is a blood test which determines the number of red blood cells, or erythrocytes, in a sample of blood. This test also evaluates the shape and the size of the red blood cells. All of this information is then used to determine the number of red blood cells per microliter of blood.

Red blood cell count values vary according to the age and the sex of a patient. The RBC count ranges from 4.2-5.0 million red blood cells per microliter of blood for women and 4.6-6.0 million for men. A normal red blood cell count for children is typically between 3.8 and 5.5 million red blood cells per volume.

This blood test is considered a very important indicator of a patient\'s health. A low red blood cell count might mean the patient has anemia, acute or chronic blood loss, malnutrition, chronic inflammation, or a number of nutritional deficiencies including iron, copper, vitamin B-12, or vitamin B-6. On the other hand, a higher than average RBC count, called polycythemia, can be a sign of congenital heart disease, pulmonary fibrosis, or renal problems. An increase of red blood cells can also happen naturally, though. People who live at high altitudes tend to have a higher-than-average RBC count, and smokers generally have a higher number of red blood cells than non-smokers.

Red blood cells perform the most important blood duty. A single drop of blood contains millions of red blood cells which are constantly traveling through your body delivering oxygen and removing waste. If they weren't, your body would slowly die.

Red blood cells are red only because they contain a protein chemical called hemoglobin which is bright red in color. Hemoglobin contains the element Iron, making it an excellent vehicle for transporting oxygen and carbon dioxide. As blood passes through the lungs, oxygen molecules attach to the hemoglobin. As the blood passes through the body's tissue, the hemoglobin releases the oxygen to the cells. The empty hemoglobin molecules then bond with the tissue's carbon dioxide or other waste gases, transporting it away.

Over time, the red blood cells get worn out and eventually die. The average life cycle of a red blood cell is 120 days. Your bones are continually producing new blood cells, replenishing your supply. The blood itself, however, is re-circulated throughout your body, not being remade all of the time.

SIMPLE CALCULATION OF RBC IN NORMAL HUMAN BODY.

Firstly we should be know the avg weight of rbc in human body in mg.

Secondly we will calculate the number of rbc by scientific process.

Then multiply the both results and get number of rbc in normal human body (approximately).

The total number of red blood cells in the human body is indeed in the range of 25-30 trillion, and it is difficult to calculate the exact number of RBCs in one drop of blood as it can vary depending on various factors such as age, gender, health status, etc.

25 or 30 trillion red blood cell in human body please answer correct because I personally found on net 25, some say 30 trillion I am confuse what world medical report say Please specify.

500000 cells per cubic mm.

1 cm = 10 mm. or 1 cc = 1000 mm. # 3.

(normal human have 5-6 litre blood). 1000 cc = 1 litre.

6000 cc = 1000.6000 mm. # 3.

1000*6000*500000 = 3000,000,000.

500000 cells per cubic mm.
1 cm = 10mm or 1 cc=1000 mm#3.

(normal human have 5 -6 litre blood). 1000 cc= 1 litre.
6000 cc = 1000.6000 mm#3.

1000*6000*500000 = 3000,000,000,000.

Units Names
1 One
1,000 Thousand
1,000,000 Million ( = 1,000 thousands)
1,000,000,000 Billion ( = 1,000 millions)
1,000,000,000,000 Trillion ( = 1,000 billions)

In 1 drop of blood, we have loads and loads Of RBC. So we can't actually calculate boat approx. We have 30 /25 trillion RBC in our body.

By searching over google that RBC count varies from 20 - 30 trillion. so three options are correct.

Please verify this answer.