Medsurg Blood donation Flashcards
complex mixture of blood
cells,proteins,and sugar
blood transport what
nutrients, oxygen and hormones
blood composition : PLASMA CONSISTENCY
water,proteins,salt,nutrients,vitamins,hormones
Cellular Portion: BLOOD CELLS CONSISTING OFF:
RBC, WBC, PLATELETS
clear liquid made up of 92% water and 8% organic and inorganic biochemicals
Plasma
PLASMA PROTEINS
Albumin,globulin,prothrombin,fibrinogen
OBJECTIVE of BT
replace circulating blood
increased o2 carrying capacity of blood
prevent incfection
prevent bleeding
A Single “u” contains ___ of blood ___ of anticoagulants
450 ml of blood and 50 ml of anticoagulants
TYPES OF BLOOD DONATIONS
WHOLE BLOOD
PACKED RBC
FRESH FROZEN PLASMA
PLATELETS
FACTORS VIII (CYROPRECIPITATE)
GRANULOCYTES
provides all components
HCT .?
whole blood
40%
complications of Whole blood
volume overload
transmission of hepatitis or aids
tranfusion reaction
infusion of excess potassium and sodium
infusion of anticoagulants
calcium binding and depletion
PROVIDE ALMOST TWICE THE AMOUNT OF HCT THAN WHOLE BLOOD
packed rbc
COMPLICATION OF PRBC
transfusion reaction
CONTAINS ALL COAGULATION FACTOR V AND VIII
FRESH FROZEN PLASMA
CAN BE THAW FOR 20 mins, can be stored for 12 months
FRESH FROZEN PLASMA
pooled from 4-8 units of whole blood
platelets
CONTAINS VON WILEBRAND FACTOR 8 ,13, and fibrinogem
FACTOR 8 fractions ( cyroprecipitate)
do not increase wbc, increase marginal pool ( at tissue lvl) rather than circulating pool
GRANULOCYTES
do not increase wbc, increase marginal pool ( at tissue lvl) rather than circulating pool
GRANULOCYTES
DONORS SHOULD NOT HAVEANY PRESENT OR HX OF THE FF:
viral hepatitis
rcvd a bt infusion w/in 12 mos
untreated syphilis or malaria
drug abuse
exposure to hiv
recent asthma attck
urticaria
allergy to med
skin infection
pregnant
tooth extraction 72 hr
untreated exposure to infx disease
recent immunization
cancer
rcnt tattoo
blood donation 56 days
diseases transmitted by bt
VIRAL HEPATITIS
AIDS HIV AND HTLV
CYTOMegalovirus
creutzfeldt Jacob disease
graft versus host disease
A VIRUS INFECTS MOST PEOPLE WORLDWIDE
PERSON TO PERSON CONTACT
cytomegalovirus
a rare d/o that can strike person whose immune system is suppressed and have either a blood transfusion or a bone marrow implant
GRAFT VERSUS HOST
dimenting disease of the brain caused by unconventional transmissible agent prion
CREUTZFELDT JACOB DISEASE
POTENTIAL DONORS : REQUISITES
body wt>50 kg 110 lbs for 450 ml donation
age 17 above
oral temp not exceed 37.5
pr regular 50-100 bpm
bp 90 /50 and 180/100
F- 12.5g/dL
M- 13.5g/dL
2 types of blood donation
directed and stamdard
friends /family mems of pt donates blood considered not safe than random donations
Directed
phlebotomy is done
standard precautions is observed
donor is on semi recombent
skin prep done
tourniquet applied
STANDARD