THE BLOOD Flashcards
Vascular fluid that transports nutrients, wastes products, gases and hormones through the circulatory system.
Blood
What is the normal blood volume of average adults?
5 – 6 L
study of blood
Hematology
specialists in blood disorders.
Hematologists
How many percent id the formed elements?
45%
3 types under the formed elements of blood
RBC
WBC
Platelets
2 kinds under the gas of blood?
Oxygen
Carbon Dioxide
How many percent of liquid is in the blood?
55 % (91% H2O, 9% dissolved subs)
2 types under the liquid of blood
Plasma
Serum
Liquid portion of the clotted blood. It consists of albumin and globulin. It has no fibrinogen
Serum
Liquid portion of the unclotted blood. It consists of fibrinogen, albumin and globulin. Obtained by the use of anticoagulant
Plasma
Anuclear; biconcave disks
Red Blood Cells (Erythrocytes)
What is the size range of RBC?
6 – 8 microns (average of 7.2 microns)
Why RBCs are red?
The red color of RBC is because of Hemoglobin which is responsible for transporting O2 and CO2
What are the two parts that consists in Hemoglobin?
Heme (that contains iron)
Globin
Where is the production and maturation site of RBC?
Bone Marrow
What is the reference value of RBC?
4.5 - 6.0 million / uL of blood. Men have higher values than women.
How many days is the life span of RBC?
120 day
Where is the graveyard of RBC?
Liver and Spleen. Destroyed by macrophages but the iron is reused in new cells.
The surface of red blood cells contain what?
Antigen
What are the four possible ABO antigens?
A antigen
B antigen
Both A and B antigens
Neither A nor B antigen
The plasma contains what?
Antibodies
What are the four possible ABO antibodies
Antibody A
Antibody B
Both anti - A and anti - B
Neither anti - A nor anti - B
What is the antigen and antibody of type A?
A antigen and antibody B
What is the antigen and antibody of type B?
B antigen and antibody A
What is the antigen and antibody of type AB?
A and B antigens and no antibody
What is the antigen and antibody of type O?
No antigen; antibody A and B
Occurs when a person receives a different group of blood because a person’s natural antibody will destroy the donor RBC’s that contain the antigen specific for the antibodies.
Transfusion Reaction
To avoid transfusion reaction, what should we do?
To avoid such reactions, patients must only receive group - specific blood type.
What is the antigen and antibody for Rh (+)?
D antigen and no antibody
What is the antigen and antibody for Rh (-)?
no antigen and no antibody