When DNA-amplification-based methods are used following apply:
The laboratory should use physical and / or biochemical barriers to prevent
DNA contamination.
The specificity of each primer and each oligonucleotide probe should be
defined and documented.
All reagents, equipment, and work areas should be monitored periodically
for absence of contamination.
Negative control should be included in each amplification.
Reports should designate the type of assay used.
COMPATIBILITY TESTING
Sample identification
Each specimen should be labelled to ensure proper identification of donor
and recipient specimen.
HLA type
When HLA type compatible blood components are required for transfusion,
donor and recipient HLA-A and -B antigens should be determined to obtain
compatible donor.
For living related stem cell transplantation donors, all available family
members (preferably siblings & parents) should be typed to determine
compatibility.
For organ transplantation, donor and recipient should be typed for ABO,
HLA-A, -B - C and –DR/DQ antigens.
HLA antibody detection
Comprehensive cell panel to ensure all WHO accepted antigens including
working antigens should be used for antibody detection in sera from
multiparous women and multitransfused patients.
LYMPHOCYTOTOXICITY CROSSMATCH
Crossmatch should be done using enhancing test methods available such
as prolonged incubation, washing, and augmentation with antiglobulin
reagents or flowcytometry on recently collected blood samples of the
recipient.
If serum shows presence of antibodies, it is preferable to preserve serum
sample for further cross match.
All serum samples should preferably be preserved, in frozen state for at
least 3 months, following transplantation.
PRETRANSPLANTATION TESTS
A sample of blood from prospective transplant donor should be tested
for ABO blood group VDRL, anti-HCV, HBsAg, anti-HIV-1, and anti-HIV-2.
Records of all HLA typing, antibody detection, lymphocyte crossmatch
and pretransplantation tests along with the results of necessary and external
controls tests should be maintained for a period of at least 5 years.
P. Histocompatibility
Testing
When DNA-amplification-based methods are used following apply: The laboratory should use physical and / or biochemical barriers to preventDNA contamination. The specificity of each primer and each oligonucleotide probe should bedefined and documented.All reagents, equipment, and work areas should be monitored periodicallyfor absence of contamination.Negative control should be included in each amplification.Reports should designate the type of assay used. COMPATIBILITY TESTING Sample identificationEach specimen should be labelled to ensure proper identification of donorand recipient specimen. HLA type When HLA type compatible blood components are required for transfusion,donor and recipient HLA-A and -B antigens should be determined to obtaincompatible donor. For living related stem cell transplantation donors, all available familymembers (preferably siblings & parents) should be typed to determinecompatibility.For organ transplantation, donor and recipient should be typed for ABO,HLA-A, -B - C and –DR/DQ antigens. HLA antibody detection Comprehensive cell panel to ensure all WHO accepted antigens includingworking antigens should be used for antibody detection in sera frommultiparous women and multitransfused patients. LYMPHOCYTOTOXICITY CROSSMATCHCrossmatch should be done using enhancing test methods available suchas prolonged incubation, washing, and augmentation with antiglobulinreagents or flowcytometry on recently collected blood samples of therecipient.If serum shows presence of antibodies, it is preferable to preserve serumsample for further cross match. All serum samples should preferably be preserved, in frozen state for atleast 3 months, following transplantation.PRETRANSPLANTATION TESTSA sample of blood from prospective transplant donor should be testedfor ABO blood group VDRL, anti-HCV, HBsAg, anti-HIV-1, and anti-HIV-2.Records of all HLA typing, antibody detection, lymphocyte crossmatchand pretransplantation tests along with the results of necessary and externalcontrols tests should be maintained for a period of at least 5 years.P. HistocompatibilityTesting
การแปล กรุณารอสักครู่..
