BLOOD DONATION Flashcards
(32 cards)
Amount of Ac-preservative for every amount of blood:
350 mL = (amount of Ac-preservatie?)
450 mL = (amount of Ac-preservatie?)
500 mL = (amount of Ac-preservatie?)
Amount of Ac-preservative for every amount of blood:
350 mL = 49 mL
450 mL = 63 mL
500 mL = 70 mL
Anticoagulant required per mL of blood:
0.14 mL
can be used as a factor
example:
350 mL blood x 0.14 = 49 mL anticoagulant
Maximum allowable amount of blood that can be extracted:
10.5 mL/kg of Donor’s weight
example:
50 kg x 10.5 mL/kg = 525 mL - MAX LIMIT!
Needle size and length:
16 gauge, 1-1.5 inch needle length
Antiseptic used:
70% isopropyl alcohol and povidone-iodine
Blood bag material:
Plasticized PVC (polyvinyl chloride)
Factor for the equivalent weight of blood:
Factor = 1.06
example:
450 mL blood x 1.06 = 477 grams
Mild Reactions of Donor that could possibly occur:
Syncope/faintinhg
nausea/vomiting
hyperventilation
twitching
muscle spasm
Moderate reactions
Loss of consciousness
Low pulse rate
hyperventilation
systolic pressure 60mmHg
needed action:
- Check vital signs frequently
- Administer 95% oxygen and 5% CO2
Severe reaction:
Convulsions
hyperventelation
needed actions:
- call for help immediately; notify blood bank physician
- restrain the donor to prevent injury to self or others
- ensure an adequate airway
Donor must be informed of the following blood donation
- Risk of the procedure
- Serologic tests that are performed
Informed consent
must be retained by the blood collection facility & ensure confidentiality of the donor records
Donor records
Donor records minimum retention time:
5-10 years
Minimum age for a person to be a potential blood donor
18 years old
Qualified body weight for a potential blood donor:
50 kg/110 lbs
factor to convert kg to lbs = 2.2
Calculations for drawing donor’s weighing less than 50 kg (110 lb)
- Volume to draw =
- Amount of anticoagulant needed =
- amount of anticoagulant to remove from collection bag =
Calculations for drawing donor’s weighing less than 50 kg (110 lb)
- Volume to draw =
(Donor’s weight in kg/50) x 450 mL - Amount of anticoagulant needed =
(A/100) x 14 - amount of anticoagulant to remove from collection bag =
63 mL - B
Required temperature for a potential blood donor:
37.5C or 99.5F
Required pulse rate for a potential blood donor:
50-100 bpm
Required blood pressure for a potential blood donor:
Systolic:
Diastolic:
Required blood pressure for a potential blood donor:
Systolic: 90-160 mmHg
Diastolic: 60-100 mmHg
Required Hgb & Hct for a potential blood donor:
Hgb: >/= 12.5 g/dL
Hct: >/= 38%
A blood donation where the donor is also the intended recipient; usually for rare blood types:
Autologous blood donation
Required Hgb and Hct for autologous donation:
Hgb: >/= 11 g/dL
Hct: 33%
**lower than the allogenic donation
Last donation for autologous donation must occur ____ hours before the scheduled surgery
72 hours (3 days)
Common cause of deferral for autologous donation:
Bacteremia
