blood donor selection Flashcards
donor screening
enumerate the lab screening included in the physical examination (7)
- weight
- temperature
- pulse
- hemoglobin
- hematocrit
- age
- blood pressure
donor screening
NORMAL RANGE
1. weight
2. temperature
3. pulse
4. hemoglobin
5. hematocrit
6. age
7. blood pressure
- weight = 110 lbs / 50 kg
- temperature = 37.5 C | 99.5 F
- pulse = 50-100 bpm
- hemoglobin = >12.5 g/dl | 125 g/L
- hematocrit = >33%
- age = 18-65 yrs old
- blood pressure = 180/100 mmHg
17 y.o needs a parent’s consent 65 y.o needs a physicial consent
donor screening
if autologous, what is the NR of hemoglobin and hematocrit?
hemoglobin = >11 g/dL
hematocrit = >33%
volume adjustment
if the blood donor weighs <110 lbs, what should we do? how to solve?
decrease the volume of blood collected
donor weight (kg) | ideal weight (50) x 450 mL = mL
volume adjustment
how to do anticoagulant adjustment? amount needed
vol. blood to draw | 100 x 14 = mL
volume adjustment
how to do anticoagulant adjustment? anticoagulant removed
63 mL - anticoagulant needed = mL
hemoglobin testin can be done via — or if mass donation, —
via complete blood count
if mass donation, Copper Sulfate method
CuSO4 is placed in a — container. this can be used up to — can be done in one container.
what is the acceptable result?
placed in a 30 ml container
this can be used up to 30 tests
blood sinks in the solution within 15 secs
refers to a donor who donates blood for his or her own use. this is most commonly used in?
AUTOLOGOUS DONORS
used in patients with upcoming surgery
enumerate the advantages of an autologous donor (4)
- decreased risk of disease transmission
- decreaed risk to transfusion reactions
- decreaed risk to transfusion alloimmunization
- blood for person with rare blood groups
enumerate the disadvantages of being an autologous donor (5)
- bacterial contamination
- circulatory overload
- cytokine-mediated reactions
- misidentification
- higher cost
deferrals (AABB standards)
not feeling well | skin lesions at venipuncture site
temporarily
deferrals (AABB standards)
drunk
12 hours
deferrals (AABB standards)
2 weeks
- measles vaccine
- mumps vaccine
- polio vaccine
- yellow fever vaccine
- acute febrile illness (2-3 weeks until fully recovered)
deferrals (AABB standards)
aspirin-containing medications
3 days
deferrals (AABB standards)
skin penetration with sharp contaminated with blood
12 months
deferrals (AABB standards)
12 months
enumerate the 11
- syphilis
- gonorrhea
- animal bite
- hepatitis vaccine
- tattoo
- ear piercing
- imprisoned
- tooth extraction
- household or sexual contact with individual with hepatitis, HIV
- skin penetration with sharp contaminated with blood
- traveled to area endemic for malaria
deferrals (AABB standards)
if you are a citizen from an area endemic for malaria
3 years
deferrals (AABB standards)
viral hepatitis after 11th birthday
permanent
deferrals (AABB standards)
permanent
enumerate the 10
- parenteral drug use
- family history of Creutzfeldt-jakob disease
- treated with growth hormone
- viral hepatitis after 11th birthday
- repeatedly reactive anti-HBc, anti-HCV, or anti-HIV
- babesiosis
- chaga’s disease
- cancer patient
- patients with bleeding disorders
- anemic
used to identify donor. this is carefully monitored to avoid druplication or wrong identification.
numeric and alphanumeric