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blood bank2 > donor deferrals > Flashcards

donor deferrals Flashcards

1
Q

list steps checked during ‘selection: donor ID’

A
  • photographic ID for age
  • date of last donation
  • deferral status
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2
Q

last deferral period for WBC donation

A

56 days

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3
Q

list deferral period for double RBC donation

A

112 days
3 times/year

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4
Q

list deferral period for PLT donation

A

7 days
24 times/year

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5
Q

list deferral period for plasma donation

A

28 days
13 times/year

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6
Q

list diseases in which tests are available but will not detect window periods

A
  • chagas
  • HBV
  • HCV
  • HTLV 1 and 2
  • WNV
  • zika
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7
Q

name diseases in which tests are available but not universally used

A
  • HIV group O strain CMV
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8
Q

list diseases that have no licensed tests available and are only ID from DHQ

A
  • babesiosis
  • CJD
  • Malaria
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9
Q

list items checked in a mini physical prior to donation

A
  • general appearance
  • anemia: hgb/hct
  • temperature
  • blood pressure
  • pulse
  • weight
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10
Q

name the allogenic H/H requirments

A
  • M: hgb >13 hct
  • F: hgb>12.5, hct>38%
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11
Q

name the autologous H/H requirmens

A

H/H >11 or 33%

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12
Q

name the temperature cut off for doantions

A

not to exceed 37.5C or 99.5F
- helps determine bacterial infection

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13
Q

name the cut off for miniphysical blood pressure

A

less than 180/100 (FDA)

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14
Q

list the pulse requirments in the mini physical

A

50-100 BPM

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15
Q

name the mini physical weight req

A

> 110 lbs

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16
Q

what is the purpose of the DHQ

A

prevents donations from individuals who may be in window period of infectivity or other transmissible diseases

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17
Q

list health risks the DHQ attempts to address

A
  • infectious diseases
  • bacterial contamination
  • cardiac strain
  • birth defects
  • caugulopathy
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18
Q

list diseases of interest for travel restrictions

A
  • blood parasites: malaria leichmania
  • virus: zika and ebola
  • prions: variant CJD
19
Q

when is the ‘questioning only’ approach used, and for what infectious agent

A

agents with defined risk but no test
- malaria, prions, ebola

20
Q

when is the ‘donor testing only’ approach used, and for what infectious agent

A

donor test available but no questions can distinguish individual risk of infection
- WNV, chagas

21
Q

when is the ‘questioning and testing’ approach used, and for what infectious agents

A

both ID risk of infection and effective tests
- HIV, HBV, HCV, zika, babesia, syphilus

22
Q

when is the ‘use test-negative blood for specific recipients’ approach used, and for what infectious agent

A

high prevalence of infectious agent in donors but ID subset of recipients benefit from tested negative blood
- CMV

23
Q

when is the ‘test blood component’ approach used and for what infectious agent

A

infectious agent not detectable in donor sample
- bacteria (platelets)

24
Q

what are teh requirments for blood collection

A
  • BP cuff inflated
  • 16g needle
  • cannot exceed 15 minutes
25
Q

name the most common collection reaction in donors

A

vasovagal
- brachycardia (slow heart rate)

26
Q

name the donor reaction most common in 1st time donors

A

hyperventilation

27
Q

name the most uncommon donor reaction in blood donations

A

hypotensive shock
- tachycardia (fast heart rate)

28
Q

name the 3 types of donors

A
  • allogenic
  • directed
  • autologous
29
Q

name the collection types for autologous donation

A
  • pre-op
  • acute normovolemic hemodilution
  • intraoperative collection
  • post operative cell salvage
30
Q

name the risk factor of autologous donations

A

TACO - getting too much blood

31
Q

in what scenario can an underweight donor be accepted

A
  • autologous donation
  • math eq: (donor weight/110)=(anticoag/450mL)
32
Q

as of 2018, what are blood products tested for

A
  • t Cruzi Ab
  • HBsAb and HBcAb
  • HCAb
  • HIV
  • HTLV
  • syphilis
  • WBV
  • babesia
33
Q

list the required tests of donated blood

A
  • ABO
  • D phenotype
  • Ab screen
  • infectious disease testing
  • QC
34
Q

how is QC ran on donated blood

A
  • platelet bacterial testing
  • WBC count on leukoreduced units (filtred)
35
Q

syphilis test method and deferral time

A

FTA-ABS
12 months post treatment

36
Q

HBV test method and deferral time

A
  • HBV DNA, HBsAg, anti HBc
  • neutralization/NAT
  • permenent
37
Q

HIV (1&2) test method and deferral time

A
  • NAT
  • permanent
38
Q

HCV test method and deferral time

A
  • pool HIV NAT
  • permanent?
39
Q

HTLV test method and deferral time

A
  • anti-HTLV ChLIA
  • permanent
40
Q

T cruzi test method and deferral time

A
  • ChLIA on first time donors
  • indefinite
41
Q

WNV test method and deferral time

A
  • NAT
  • 120 days
  • tested in pools until first pos in mosqito season
42
Q

Bebesiosis test method and deferral time

A
  • NAT and DHQ
  • 2 years from reactive test
  • year round single donor test in endemic regions (east coast)
43
Q

Zika test method and deferral time

A
  • NAT
  • 4 weeks
44
Q

how long are donor records kept for and why

A

10 years
- past units given reviewed for potential infections transmission

blood bank2 (11 decks)

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