What is a Blood? Everything about blood You Need To Know

Facts About The Blood

  • Every person has five to six liters of blood, depending on their size and weight; it makes up six to eight percent of our body weight
  • the red blood cells transport oxygen to all tissues and organs of the body, and the transport of carbon dioxide from tissues and organs towards the lungs also takes place in this way
  • Another important task of the blood is to transport nutrients and hormones into the cells
  • The blood turns red due to iron, which is contained in the blood pigment (hemoglobin) of the red blood cells
  • A lot of information about organ functions and diseases can be obtained by taking a blood sample

What is a Blood? What is The Blood Made of? 

The blood consists of liquid and solid parts. The liquid part is called blood plasma. Which makes up about 60 percent of the blood. The following important components are found in the blood plasma:

What is a Blood? Everything about blood You Need To Know: Rean Times

  • Clotting factors
  • numerous metabolic products
  • Antibodies
  • Hormones

If the coagulation factors have been removed from the plasma, it is called blood serum.

The remaining 40 percent of the solid part of the blood is made up of cells. This includes:

  • red blood cells ( erythrocytes ): carry oxygen and carbon dioxide and define our blood group
  • White blood cells ( leukocytes ): are defense cells and therefore part of the immune system

The following terms are often found on the laboratory results:

  • Reticulocytes
  • Lymphocytes
  • Monocytes
  • Granulocytes

Laboratory Values ​​For Everything To Do With Blood 

In the laboratory, the components of the blood can be separated from one another and examined.

The small blood count determines, among other things, the number of red and white blood cells and platelets. The analysis can point to various diseases, inflammations or deficiency symptoms.

In the complete blood count, the different types of white blood cells are also examined in detail.

When examining the blood, for example, these laboratory values ​​play a role:

  • Hemoglobin (Hb)
  • Hematocrit (Hk)
  • Ferritin
  • Transferrin
  • Mean Corpuscular Volume (MCV)
  • Haptoglobin
  • Erythropoietin (EPO)

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All About Blood Donation

Blood, Donation, Medical, Volunteer, Donor, Hospital

Blood groups: A, B, AB, 0, positive and negative
The structure of the red blood cells determines the blood group. The most important blood group properties for blood transfusions are the AB0 and Rhesus systems

Donating Blood: What You Should Know

Blood supply: What is a Blood? Everything about blood You Need To Know: Rean Times

Where can I donate blood? Who can donate and who shouldn’t? And what exactly can you expect from a blood donation? Our special provides answers to important questions about blood donation
Blood transfusion explained: reasons, process, and risks
In a blood transfusion, blood or blood components are administered through a vein to compensate for a deficiency.

Forms of Anemia 

One of the diseases that is directly related to the blood is anemia. This can occur if there is too little red blood pigment (hemoglobin) and/or red blood cells (erythrocytes) and thus too little blood cells (hematocrit) in the body. You can find more information on various forms of anemia under the links below:

There are other diseases that affect the blood. These are listed on this page

  • anemia
  • Iron deficiency anemia
  • Thalassemia


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