QUALITY ASSURANCE

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This is a process for assessing the accuracy and variability with a specified degree of confidence that the results reported by this laboratory are correct.

QUALITY CONTROL POLICY:

1. QC for qualitative tests: - Both positive & negative controls are run along with patient’s sample.

2. QC for quantitative tests:

1. Internal QC

2. External QC

INTERNAL QUALITY CONTROL:

In this laboratory, the following two Methods are used for evaluating quantitative QC data daily.

a) Statistical Control techniques - Mean, SD + CV

b) Control technique – Here control charts display the control values observed along with the date and time of the run. The “LEVEY- JENNING’S” graph is used in this lab.

EXTERNAL QUALITY CONTROL:

This refers to a systems in which laboratory results are scrutinized by an outside agency in order to get a general impression of the status of laboratory.

QUALITY CONTROL

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INTERNAL QUALITY CONTROL :

The following two methods are used for evaluating quantitative QC data daily.

a) Statistical Control Techniques – Mean, SD + CS

b) Control technique – Here control charts display the control values observed Along with the date and time of the run. The “LEVEY- JENNINGS” graph is Used .

EXTERNAL QUALITY CONTROL:

This laboratory participates in the following External QC programmes.

1. ILE FOR VDRL TEST:

The Serologist and professor of serology, Central V.D.Reference Laboratory, Chennai – 600 003.

2. PHAGE TYPING OF SALMONELLA STRAINS:

National Salmonella Phage typing centre, New Delhi – 110 001.

3. SEROTYPING OF SALMONELLA STRAINS:

National Salmonella & Escherichia Centre, Kasuli - 173 204.

4. EQC FOR BIOCHEMICAL PARAMETERS

Bio chemistry External Quality Assessment Scheme, CMC Hospital Vellore.

5. EQC FOR MICROBIOLOGY:


Microbiology External Quality Assessment Scheme.

6. EQC FOR HAEMATOLOGY


Department of Haematology AIIMS, New Delhi 110 029