Hong Kong Institute of Medical Laboratory Sciences Quality Assurance Programme Ltd.

Quality Assurance Programme in Virus Serology

HIV Serology

Objective Criteria for Performance Evaluation of Virology Serology

In each quarterly survey exercise three sets of five serum/plasma samples will be sent to participating laboratories for testing of HIV antibody, anti-HCV and HBsAg/anti-HBs.  Survey data must be returned for statistical analysis before the due dates; otherwise, “Late Return" will be stated in the survey report.

Initial reactive results with a confirmation/referral test will score two; whereas correct initial reactive result without further confirmation/referral test will score one. Retest the initial reactive sample using the same method without neutralisation will not be considered as a confirmatory test.

False negative result is considered as incorrect and will be assigned a score of “-1”. False positive result will be either assigned as “0” or “-1” and that will depend on the indication of confirmation/referral testing or not respectively.

Any equivocal (±) result without the indication of confirmation or referral testing will score zero. Equivocal result for intended positive specimen with the indication of confirmation or referral testing will score one; whereas equivocal result to be confirmed or referred for the intended negative specimen will score two.

Remarks

Should there be any data discrepancy in the survey report or any disagreement with the performance evaluation, participant can appeal to the chairman of HKIMLSQAP for amendment and review.

Contact us:

(852) 2499 0015 [Phone]
(852) 2124 2798 [Fax]
info@hkimlsqap.org [Email]

The Chairman
Quality Assurance Programme Committee
Hong Kong Institute of Medical Laboratory Sciences Quality Assurance Programme Ltd.

Flat 1711, 17/F, Block C, Bell House,
525 - 543 Nathan Road, Yaumatei, Kowloon, Hong Kong.

Last updated on 1 December 2012.