Blood Therapy 2 Flashcards

(66 cards)

1
Q

A single unit can be isolated from every units of donated blood by centrifuging the blood within the closed collection ystem to separate plts from rbc

A

Platelet concentrates

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2
Q

As the plt number is inadequate Four to six units are pooled together called

A

Whole blood derived or random donor pooled plts

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3
Q

Advantage of plts conc

A

Lower cost
Ease of collection
Processing

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4
Q

Disadvantage of plt concentrate

A

Recipients exposure to multiple donor in a single transfusion and logistic issues related to bacterial testing

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5
Q

Plts are collected in how many hours in apheresis procedure

A

2-3hrs

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6
Q

In apheresis what are removed and what returned to donor

A

Plts and wbc removed, rbc and plasma returned

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7
Q

A typical apheresis platelet unit

A

3 - 6 x10^11

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8
Q

Advantage if single donor apheresis plts

A

Exposure of the recipient to a single donor rather than multiple donor

Ability to match donor and recipients characteristics such as HLA, Cmv, and blood type certain recipients

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9
Q

Which contain less than 5x10^6 leukocytes

A

Plts, pooled, buffy coat deried, leucocyte depleted pool pf plts, derived from buffy coat

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10
Q

A single donor plt component containing less than 5x10^6 leucocytes

A

Plts, apheresis, leucocyte depleted

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11
Q

This component indicated for pt with reaction to plasma containing components

A

Pksts, suspended in additive, keukocyes depleted, plts concentrate,

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12
Q

Volume of pc

A

150-450ml

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13
Q

Ph of pc

A

Bet 6.4-7.4

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14
Q

Leuko ct in pc

A

Less than 5x10^6

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15
Q

Shelf life of pc

A

5 days

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16
Q

Practical shelf life of pc

A

2.3-3days

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17
Q

Pkts ar stored in

A

Room temp

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18
Q

Cold induces

A

Clustering of vwf receptor kn tge plt surface and morphological changes of plts

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19
Q

Leading to enhanced

A

By hepatic macrophages and reduced plts survival in the recipients

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20
Q

Plts are stored at a core temp of

A

22deg +/- 2 deg with agitation for 5 days in closed system

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21
Q

Plts are stored in room temp to engabce

A

Bacterial growth and third leading cause of HTR

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22
Q

For any pt who develop a fever within 6 hrs after receiving plts

A

Sepsis from plts considered

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23
Q

One plt concentrate is usually given to most

A

Adukt pt

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24
Q

In small childern dec 20kgs and 10-15ml

A

One plt conc used

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25
In older children
An adukt dose of plts should be used
26
One plt comc ususlly produces and increase of approx how many plts and how many kg in pt
7000-10000mm3 at 1 hr to 70kg
27
Ten units f plt concentrate are required to inc plt ct by
100000 cells/mm3
28
Dose computation
PI X BV X F-1
29
Prepared from whole blood by separating snd freezing plasma 200-250'l within 6hr donation
Fresh frozen plasma
30
Ffp may be stored up to and how many deg
1yr -18 deg
31
It contains aol coagulation factors and othe protein
Ffp
32
Order the ffp should be what
30-37 deg with constant agitation
33
After thawing of ffp can be stored at what temp and what if room temp
4deg for 24hrs but if room temp 4hrs
34
Diff types of ffp
``` Fresh frozen plasma F24plasma Cryosupernatant Liquid plasma Solvent detergent treated plasma ```
35
Plasma frozen at 18 deg within 6hrs of donation
Ffp
36
Plasma frozen at 18det within 24 hrs cryosuoernatant and solvent detergent treated plasma liquid
F24 plasma
37
Teh plasma remaining after removing cryoprecipitate
Cryosupernatant
38
Cryosupernatant also referrref as
Cryo poor plasma
39
Spused as plama replacement in pt with thrombicytopenic purpura
Cryosupernatant
40
Vitamin def correction of major bleeding in the setting of
Warfarin coagulation
41
Remival of cryoprecipitate from plasma does nit deplete
Vut k dependent clotting factors
42
Plasma nit immmediately frozen as ffp or f24 and stored at 1-6deg
Liquid plasma
43
Used preparation of plasma derivative slike albumin, factor conc, abd immuniglobulins
Liquid plasma
44
Treatment of pooled plasma prior o freezing with a solvent and non ionic detergent inactivates a number of lipid envelope virus, hiv, hep b and c
Somvent detergent palsma
45
Non enveloped viruses like parvob19 and hep a arenot inactivated by this process and prions
S/d plasma
46
This method used ti inactivate viruses in ig and coagulation factors
S/d plasma method
47
Has similar levels of most clotting factors and similar hemostatic properties as standard ffp
S/d plasma
48
Twi emthod to collect this component
Random donor pooled pt | Single donor apheresis platelets
49
The inuitial therapeutic dose of ffp average
10-15ml/kg to obtain 30% factor
50
Repeating dosing should follow the resukt pf serial diagnostic coagulation test such as
Pt and aptt
51
Ffp in trauma
Tarditional method fluids, ffp, rbc only abnormal coagulation result problem dikutional coagulopathy resulting in prolonged microvascular bleeding Recent studies show improved outcomes with higher ration of cell unit to ffp 3:2
52
Cryoprecipitate Originally it was a developed as a therapy for
Hemophilia A
53
Cryoprecipitate enrinched with
Fibrinogen, fac 8, vwf, factor 13
54
When ffp is thawed at 4 deg
Prrcipitate formed, resuspend snall volume of plasma and refrozen 18deg for 1 year
55
1 unit of whole blood contains
250 ml plasma
56
One unit of cryoprecipitate volume cobtains 10-20ml in to
150-250 mg
57
80-100 units of
Factor 8
58
50-100 units of factor
13
59
50-60mg of
Fibronectin
60
40-70% of
Vwf conc
61
Essential for the fromation promary hemostatic plus maintanance of normal hemostasis
Plts
62
Thrombocytopenia may csused
Dec plt production Increase destruction Massive transfuison
63
Dic
Increase destruction
64
Because of rapid use of olt for hemostasis and dilution plt by resuscitation fouids
Massive transfuison
65
After chemotherapy or malignancy
Dec plt prodyction
66
Indicated for patients
Who are bleeding due to thrombipocytopenua Who have abnormal fuctioning Who have plt ct under 20000 ul Who have undergone chemotherapy, dic, massive transfusion