NSG 230 Lecture Notes - Lecture 4: Rh Blood Group System, Secondary Hypertension, Blood Plasma

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14 May 2019
Department
Course
Professor
October 1, 2018
Components of blood
Plasma liquid; mostly made of water
Platelets what stops you from bleeding out when you cut yourself
White blood cells infection fighting cells
Red blood cells carry oxygen to your body
History
Found in 1600s that you cannot transfuse blood between animal species or
animals and humans
1900s found the 4 blood types, determined you have to transfuse between
certain kinds
What is blood?
Carries oxygen and nutrients throughout your body
Cryoprecipitated antihemophilic factor (AHF) clotting factor of blood
Blood Groups
Blood group A: you have the A antigens on the surface of your red blood cells
and B antibodies in your blood plasma
Blood group B: you have B antigens on the surface of your red blood cells and A
antibodies in your blood plasma
Blood group AB: you have both A and B antigens on the surface of your red
blood cells and no A or B antibodies at all in your blood plasma
o Universal recipient. They do not perceive any blood type as foreign
o Can only give to another AB person
Blood group O: you have neither A or B antigens on the surface of your red blood
cells but you have both A and B antibodies in your blood plasma
o Universal donor
Rh Factor on your red blood cells surface
o Rh+, those who have it. Can receive Rh + or -
o Rh-, those who do not. Can only receive Rh-
If a pregnant mom is Rh-, you get the Rhogam shot
Blood Pressure
Changes during the day, elevates when you are moving around/stressed/nervous
etc.
High blood pressure is between 140 over 90 or higher
o Can damage your heart and arteries
o Primary or essential hypertension; when there is no clear cause of why you
would have high blood pressure
o Secondary hypertension; clear why they have it. Maybe they are on certain
meds, obesity, genetics, etc.
Ideal blood pressure 120 over 80
o Less than 120 or less than 80
Pre hypertension is 120-139 over 80-89
Stage 1 hypertension 140-159 over 90-99
Stage 2 hypertension 160 or higher over 100 or higher
Systolic is top number and diastolic is bottom number
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