.: Hematology:.

Why this is important in my career?
As a heath care worker it is very important to understand the basics of blood. It is one of the single most things that we come in contact with everyday. Hematology gives me the understanding of what blood is and what it can do. This is important as a nurse to understand better what might being going on with my patients.Hematology can help diagnose different disease and conditions that might be going on with my patients. The study of blood is very useful in the fact that I will be working with other people and maybe someday I'll have to deal with transplants. Even though it will be useful in my job hematology will be very beneficial to everyday.It makes me feel more confident in knowing the blood typing system.

Summary:
Hematology is the study of blood. If you ever thought of blood, it is a main component to keep us alive.Its kind of the nile that keeps Egypt thriving in simple terms. The blood inside us can fight infections, deliver oxygen and help clot injuries. Blood is composed of formed elements and plasma. The formed elements contain white,red blood cells and platelets. This doesn't sounds like much, but there are different kinds of white blood cells. These are also known as leukocytes or WBC.
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  • WBC have multiple variations.To start out with, neutrophils consist of 50%- 70% of WBC. These leukocytes are the ones to act first in an infection. Second type is esophils. Their job is to detoxify foreign substances, secret enzyme that dissolve clots and fight parasitic infection. The third kind of WBC are basopils. They release anticoagulant heparin. Lymphocytes are the fourth kind of WBC and they provide specific immune responses. Finally the last kind of WBC and the only kind that isn't granular is monocytes. These cells are 2-3 times larger than RBCs and are involved in phagocytosis.

  • Red blood cells are also known as erythrocytes or RBCs. These cells are biconcave disk and contain no nucleus. These tiny cells contain hemoglobin and can survive 100- 120 days! Their main function is the transport of oxygen and carbon dioxide.

  • Platelets also have another name. They are called thrombocytes and they are cytoplasmic fragments. These little ones have a life span of 5-9 days. The main function of thrombocytes is to enable clotting and release serotonin.


You may ask what is Hematology? This video is great for a better understanding.




This chart shows the antigens and the antibodies of the ABO+- system
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This chart shows the the blood types and which types can give and receive other certain blood types.
Blood Group
Antigens
Antibodies
Can give blood..to
Can.receive blood..from
A Rh+
A, Rh
B
A Rh+
AB Rh+
A Rh+,-
O Rh +,-
A Rh-
A
B *
A Rh-
A Rh+
AB Rh-
AB RH+
A Rh-
O Rh-
B Rh+
B,Rh
A
B Rh+
AB Rh+
B Rh+,-
O RH+,-
B Rh-
B
A *
B Rh-
B Rh+
AB Rh-
AB Rh+
B Rh -
O Rh-
O Rh+
Rh
A,B
O Rh+
A Rh+
B Rh+
AB Rh+
O Rh-
O Rh+
O Rh-
none
A,B *
AB Rh+
AB Rh-
A Rh+
A Rh-
B Rh+
B Rh-
O Rh+
O Rh-
O Rh-
AB Rh+
A,B,Rh
none
AB Rh+
AB Rh+,-
A Rh +,-
B Rh +,-
O Rh +,-
AB Rh-
A,B
none *
AB Rh-
AB Rh+
AB Rh-
A RH -
B Rh-
O Rh
  • * = Can develop Rh antibodies


Describe what happens on the molecular level when blood types are not compatible( major cross match).
When a major cross match happens during a transfusion the red blood cells from the donor blood will agglutinate (clump together). This can cause a blockage in the blood vessels.

What blood type is considered the universal donor and why?

The universal donor is type O Rh- because it has no antigens. It also is compatible with all blood types.

What blood type is considered the universal recipient and why?
The universal recipient is AB Rh+ because the recipient can receive blood from all blood types.

Fun Fact:An individual blood cell takes about 60 seconds to make a complete circuit of the body.

Thanks to:
Human physiology 11th edition -McGraw-Hill

You Tube
http://www.nlm.nih.gov/medlineplus
http://onemansblog.com/2006/12/28/human-physiology-trivia-26-fun-facts/