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Transcript of Blood lab. Blood composition Plasma – fluid, gives volume contains antibodies Platelets – helps...
![Page 1: Blood lab. Blood composition Plasma – fluid, gives volume contains antibodies Platelets – helps in clotting of blood White blood cells – used in defense.](https://reader035.fdocuments.us/reader035/viewer/2022062804/5697bf861a28abf838c87d87/html5/thumbnails/1.jpg)
Blood lab
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Blood composition
• Plasma – fluid, gives volume contains antibodies
• Platelets – helps in clotting of blood
• White blood cells – used in defense against foreign invaders
• Red blood cells – carry oxygen
Blood after it has been centrifuged
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Blood Genetics
• In blood type genetics*, there are:
____________ genes OR alleles that
Produce ____________ blood proteins that
Result in ____________ blood types that
Establish ____________ genotypes
*See wkst #4
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TERMS TO KNOW
• Protein- antigen (ag) or agglutinogens
• Antibodies- agglutinin- fight against foreign particles
• Coagulation: Blood clotting
• Agglutination: Blood clumping
• RBC = Red blood Cell
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RBC Has Antigens
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Blood Groups Are Based On RBC Antigens (Ag)
Rh+ Antigen
‘A’ Ag
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Blood Groups: B+ and B-
Rh+ Antigen
‘B’ Ag
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Blood Groups: AB+ and AB-
Rh+ Antigen
‘B’ Ag
‘A’ Ag
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Blood Groups: O+ and O-
Rh+ Antigen
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Plasma Has Antibodies
http://www.lrc.arizona.edu/courses/mmiweb/lake/immunology_modules/hemagglutination/hema2.html
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Remember RBC Has Antigens
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Antibodies Can Bind To Antigens
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Clumping of Blood
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Possible Genotypes: AA AO BB BO AB OO
RBC Antigen (Agglutinogen)
A B AB None
Plasma Antibodies(Agglutininins)
Anti – B Anti – A None both
Reaction with Anti – A YES
Reaction with Anti – B YESNO
NO NO
NO
YES
YES
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DONOR
RECIPIENTRECIPIENTType A
(anti B)
Type B
(anti A)
Type AB
(none)
Type 0
(anti A & Anti B)
A
B
AB
O
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Rh FactorBlood Type
Positive Negative
Genotype(s)
Antigens (yes or no)
Agglutinins (antibodies)
Moms that have Rh negative blood will have antibodies/ fight against a baby with the Rh protein (positive).
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1st Baby Is Rh + ; Mom is Rh -
Baby’s blood enters mom’s blood, transferring Rh+ Antigens to mom
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1st Baby Is Rh +; Mom Is Rh -
Mom Makes Antibodies against Rh+ Antigens In Her Blood
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2nd Baby Is Also Rh +
Mom’s Antibodies Attack The RBC’s In The 2nd Baby
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Erythroblastosis Fetalis
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Anti Rh + Antibodies (Rhogam)
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Rhogam Destroys Rh + Antibodies In Mom
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1st Baby Is Rh +Rhogam prevents Mom From Making Antibodies against Rh+ Antigens
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2nd Baby Is Also Rh +
With Rhogam, Mom’s Blood Does Not Attack The RBC’s In The 2nd Baby
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Jaundice in Infants
• Complications Due to ABO Incompatibility Are Rare!
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