Blood Therapy 2 Flashcards

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
Q

In older children

A

An adukt dose of plts should be used

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26
Q

One plt comc ususlly produces and increase of approx how many plts and how many kg in pt

A

7000-10000mm3 at 1 hr to 70kg

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27
Q

Ten units f plt concentrate are required to inc plt ct by

A

100000 cells/mm3

28
Q

Dose computation

A

PI X BV X F-1

29
Q

Prepared from whole blood by separating snd freezing plasma 200-250’l within 6hr donation

A

Fresh frozen plasma

30
Q

Ffp may be stored up to and how many deg

A

1yr -18 deg

31
Q

It contains aol coagulation factors and othe protein

A

Ffp

32
Q

Order the ffp should be what

A

30-37 deg with constant agitation

33
Q

After thawing of ffp can be stored at what temp and what if room temp

A

4deg for 24hrs but if room temp 4hrs

34
Q

Diff types of ffp

A
Fresh frozen plasma
F24plasma
Cryosupernatant
Liquid plasma
Solvent detergent treated plasma
35
Q

Plasma frozen at 18 deg within 6hrs of donation

A

Ffp

36
Q

Plasma frozen at 18det within 24 hrs cryosuoernatant and solvent detergent treated plasma liquid

A

F24 plasma

37
Q

Teh plasma remaining after removing cryoprecipitate

A

Cryosupernatant

38
Q

Cryosupernatant also referrref as

A

Cryo poor plasma

39
Q

Spused as plama replacement in pt with thrombicytopenic purpura

A

Cryosupernatant

40
Q

Vitamin def correction of major bleeding in the setting of

A

Warfarin coagulation

41
Q

Remival of cryoprecipitate from plasma does nit deplete

A

Vut k dependent clotting factors

42
Q

Plasma nit immmediately frozen as ffp or f24 and stored at 1-6deg

A

Liquid plasma

43
Q

Used preparation of plasma derivative slike albumin, factor conc, abd immuniglobulins

A

Liquid plasma

44
Q

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

A

Somvent detergent palsma

45
Q

Non enveloped viruses like parvob19 and hep a arenot inactivated by this process and prions

A

S/d plasma

46
Q

This method used ti inactivate viruses in ig and coagulation factors

A

S/d plasma method

47
Q

Has similar levels of most clotting factors and similar hemostatic properties as standard ffp

A

S/d plasma

48
Q

Twi emthod to collect this component

A

Random donor pooled pt

Single donor apheresis platelets

49
Q

The inuitial therapeutic dose of ffp average

A

10-15ml/kg to obtain 30% factor

50
Q

Repeating dosing should follow the resukt pf serial diagnostic coagulation test such as

A

Pt and aptt

51
Q

Ffp in trauma

A

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
Q

Cryoprecipitate Originally it was a developed as a therapy for

A

Hemophilia A

53
Q

Cryoprecipitate enrinched with

A

Fibrinogen, fac 8, vwf, factor 13

54
Q

When ffp is thawed at 4 deg

A

Prrcipitate formed, resuspend snall volume of plasma and refrozen 18deg for 1 year

55
Q

1 unit of whole blood contains

A

250 ml plasma

56
Q

One unit of cryoprecipitate volume cobtains 10-20ml in to

A

150-250 mg

57
Q

80-100 units of

A

Factor 8

58
Q

50-100 units of factor

A

13

59
Q

50-60mg of

A

Fibronectin

60
Q

40-70% of

A

Vwf conc

61
Q

Essential for the fromation promary hemostatic plus maintanance of normal hemostasis

A

Plts

62
Q

Thrombocytopenia may csused

A

Dec plt production
Increase destruction
Massive transfuison

63
Q

Dic

A

Increase destruction

64
Q

Because of rapid use of olt for hemostasis and dilution plt by resuscitation fouids

A

Massive transfuison

65
Q

After chemotherapy or malignancy

A

Dec plt prodyction

66
Q

Indicated for patients

A

Who are bleeding due to thrombipocytopenua
Who have abnormal fuctioning
Who have plt ct under 20000 ul
Who have undergone chemotherapy, dic, massive transfusion