quality control in blood

7/30/2019 Quality Control in Blood.

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QUALITY CONTROL

IN BLOOD BANK

BY SAFIA

SENIOR TECHNOLOGIST


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Quality control is a part of a quality assuranceprogram. It checks whether the qualityassurance program is effective in ensuring the

safety of blood and the recipient. Qualitycontrol is therefore an inspection system usedto ensure that specifications are met and thatmistakes have not occured. Quality control

consists of two programs.1.Internal quality control.2.External quality control.


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Internal quality control programprimarily checks the precision of thework. It is based on monitoring various

aspects of the tests performed in thelaboratory. It includes testing of controlsera , repeated testing of routinesamples. Internal quality control is

intended to ensure that there iscontinual evaluation of the reliabilityof the work of the laboratory andcontrol is exercised over the release oftest result.


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External quality control is the

objective evaluation by anoutside agency and primarilychecks the accuracy of the

work.


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is the series of procedure thatensures that a correct result is

achieved in a standardreproducible and traceablemanner.


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Quality Assurance Programensures:1.Avoidance of mistakes.2.Consistency of performance.

3.Customer satisfaction.4.Data integrity


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Ensuring safe blood component requires

applying the principles of quality

assurance to all aspect of componentcollection , preparations , testing , storage

and transport.

Staff must be trained and their

competency evaluated. The contents of

final product should be periodically

assessed to make sure that they meet

expectations.


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Aseptic technique.

Seal closed method.

storage at 1-6C.

Components preparation has to bedone within 6 hours after collection.

Labels/records : ABO and Rh

grouping.Screening, expiratory date and volumeof the blood.


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COMPONENT PREPARATION:a)Packed cell.

b)Platelets.c)Fresh Frozen Plasma.d)Cryoprecipitate.

a)Packed cells:

Storage = 1-6 C.

Anticoagulant= (CPDA-1) Shelf life = 35days.Hematocrit = < 80%.Volume = 250mL.

Sterility : no growth.


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b) Platelets:Storage = 20-24 C.Shelf life = 5 days (continuous , gentle agitation)Volume = 50-70mL. Sterility : no growth

c)Fresh Frozen Plasma:Storage = -18 C/-80 C.

Shelf life = 1 year/7 years.Liquid Plasma = 5 days.Volume = 150mL. Sterility : no growth

d) Cryoprecipitate: is also called AHF.Storage = -80 C.shelf life = 1 year.Volume = 15mL.Thawed = use within 6 hours (1-6 C). Sterility : no

growth


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Refrigerators, freezers, and chambers have

built-in temperature monitoring sensors.< When recording charts or tapes are changed,they should be dated.< A chart with a perfect circle tracing may

indicate that the recorder is not functioningproperly.< Alarm signals will activate at a temperaturethat allows personnel to take proper action

before blood reaches desirable temperature.


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Visual thermometers in blood storageequipment provide ongoing verificationof temperature accuracy.

Thermometer calibration is done by

bio-medical department on quarterlybases.


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THANKYOU.

quality control in blood

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