"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 5

Description

"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 5

learning target:

1. Discovery of blood type;

2. General principles of blood transfusion;

3. The feasibility and importance of blood donation.

People are injured and bleeding heavily in natural disasters. What would you do as an emergency doctor?

Stop bleeding, bandage wounds, blood transfusion, etc.

What factors need to be considered for blood transfusion? blood type

1. Types of blood types:

erythrocyte agglutinogen

Type A agglutinogen (antigen)

B type agglutinogen

Landsteiner divided human blood into four types: type A (red blood cells contain A agglutinogen), type B, type AB (including A and B), and type O (excluding), which are the ABO blood types.

In addition to the ABO blood group system, humans also have other blood group systems, such as the Rh blood group system.

2. Principles of blood transfusion

The principle is to transfuse blood of the same type

Only a small amount of abnormal blood can be transfused

When red blood cells containing type A agglutinogen meet anti-A agglutinin or red blood cells containing type B agglutinogen meet anti-B agglutinin, they will agglomerate into clumps and hinder blood circulation.

Benefits of donating blood:

1. It can prevent and slow down hyperviscosity;

2. It can prevent and reduce the occurrence of cardiovascular and cerebrovascular diseases;

3. Promote the hematopoietic function of bone marrow;

4. Promote blood renewal.

Expansion: Component Transfusion Technology

Blood transfusion can save a patient's life, but some patients only lack certain components in the blood and do not need a whole blood transfusion (containing all blood components). Modern medicine has developed component blood transfusion. In clinical practice, certain components in the blood are often selected and transfused into the patient's body in a targeted manner according to the needs of the patient's condition. Blood components can be plasma, platelets, white blood cells, and red blood cells. Blood components can be collected through a blood separator. The blood component currently in greater clinical demand is platelets.

Target Detection:

1. Please analyze what blood components should be transfused for the following patients?

(1) Patients with extensive burns;

(2) Patients with non-iron deficiency anemia;

(3) Patients with unstoppable bleeding or bleeding disorders.

Tip: Burn patients mainly suffer from reduced plasma volume and anemia may be due to insufficient red blood cells. Platelets can promote coagulation and accelerate hemostasis.

Answer: (1) A large amount of plasma should be transfused; (2) Red blood cells should be transfused; (3) Platelets should be transfused.

2. Who first discovered blood types?

Landsteiner, Austria, 1900.

3. How many types of common ABO blood types are there?

There are four types: A type, B type, AB type, and O type.

4. What are the principles of blood transfusion?

The principle is to transfuse blood of the same type, and only a small amount of blood of different types can be transfused.

5. How much blood can a healthy adult donate each time?

200-400ml.

6. How is the ABO blood group system finalized?

It is determined by the types of antigens on red blood cells and antibodies in the serum.

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"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 4:

"Blood Transfusion and Blood Types" Transport of Substances in the Human Body PPT Courseware 4 Discovery of Blood Types In the 17th century, after Harvey discovered blood circulation, humans began to attempt blood transfusions. In 1667, French philosopher Denis and surgeon Emerez transfused 250 ml of sheep blood into...

"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 3:

"Blood Transfusion and Blood Type" Transport of Substances in the Human Body PPT Courseware 3 Preview Thoughts 1. Do you know who discovered the blood type and when? 2. After we complete the blood test in the hospital, the doctor will tell us our blood type. Do you know your blood type? 3. Common ABO..

"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 2:

"Blood Transfusion and Blood Type" Transport of Substances in the Human Body PPT Courseware 2 Learning Objectives 1. Know the blood volume of the human body and have a preliminary understanding of blood transfusion. 2. Master the ABO blood type. 3. Outline the principles of safe blood transfusion and the significance of voluntary blood donation. 4. Be able to combine blood transfusion examples in life and recognize...

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Update Time: 2024-11-18

This template belongs to biology courseware People's Education Press seventh grade biology book volume 2 industry PPT template

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