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Sunday, 29 January 2017

Analyst qualification approach in Quality Control Microbiology


General Guidance
Before assigning any job responsibility to a microbiologist, Team leader Microbiology shall qualify the microbiologist as per qualification procedure mentioned ahead.

The microbiologist shall undergo shop floor training for the required test before proceeding for the analyst qualification procedure.

Before initiating analyst qualification for the sterility test, microbial enumeration and test for specified microorganisms, microbiologist must be qualified for gowning qualification

Analyst shall read respective procedure thoroughly and understand the test Method written in procedure.

Qualified analyst shall explain the test procedure. Trainee analyst shall observe the test procedure is performed by qualified analyst.

Then trainee analyst shall perform the test under the supervision of qualified analyst.

Team leader shall allocate the pre-analyzed and approved codified test samples  to trainee analyst and record the test sample details and final conclusion as per Respective log.

Trainee analyst shall perform the test independently as per references test procedure provided by the Team leader /designee for three consecutive samples.

Team leader shall qualify the analyst/s based on the techniques followed, competency and test results.

If the analyst/s fails in the qualification test, retraining shall be given and requalification shall be performed again to qualify the analyst for microbiology.

Analyst Qualification procedure for Sterility Test

In case of sterility only sterile fluid A or any suitable diluents (Coded samples) shall be given to Trainee analyst (Microbiologist).

Trainee analyst (Microbiologist) shall perform sterility testing for the allocated three consecutive samples.

Team leader shall cross check the results with the data & review and approve the analyst based on the test observations.

The microbiologist stands qualified for sterility test only if the test results meet the Acceptance criteria as per Table I.

Analyst Qualification procedure for Bacterial Endotoxin Test

Analyst shall be qualifying on the basis of Lysate sensitivity (Control curve) test.

Only the previously approved lot of Lysate shall be used for the analyst qualification.

The qualification tests shall be performed for three consecutive times to confirm the reproducibility & consistency of the Microbiologist/s.

Observations of the test shall be taken in the presence of qualified Analyst/ supervisor.

Team leader /Designee shall review the results and approve the analyst based on the results.

The analyst stands qualified for Bacterial Endotoxin Test only if the test results meet the Acceptance criteria given ahead under Table I.


Analyst Qualification procedure for Test for Microbial Enumeration test

In order to qualifying a person for the test for Microbial Enumeration test, Trainee analyst (Microbiologist) shall perform culture qualification using suitable plating technique.

A) Pour Plating Technique:If the trainee analyst (Microbiologist) has to be qualified for pour plating technique, Team leader / Designee shall allocate three pre-quantified coded aerobic bacterial culture suspensions contain NMT 104   cfu  per ml.

Trainee analyst (Microbiologist) shall perform culture quantification by making serial dilutions for 2 times of the culture suspension and pour plating each dilution.Test shall be performed as per aseptically in Bio-safety cabinet in culture handling room.Test data shall be recorded as in the presence of supervisor.

Photocopy of the data of initial standardization of the inoculum shall be attached along with the Analyst Qualification Record.

Team leader /Designee shall review the results and approve the analyst based on the results.

The microbiologist stands qualified for Test for Microbial Enumeration test only if the test results meet the acceptance criteria given ahead under Table I.

B) Membrane Filtration Technique

If the microbiologist has to be qualified for membrane filtration technique, Team leader / Designee shall provide microbiologist three coded fluid A samples which may be spiked or un-spiked.

Spiked sample/s shall contain NMT 100 cfu of the same organism.

Test shall be performed aseptically in Bio-safety cabinet in culture handling room.

Test data shall be recorded in the presence of supervisor.

Photocopy of the data of initial standardization of the inoculum shall be attached along with the Analyst Qualification Record.

Team leader /Designee shall review the results and approve the analyst based on the results.

The microbiologist stands qualified for Test for Microbial Enumeration test only if the test results meet the acceptance criteria given ahead under Table I.


Analyst Qualification procedure for Test for Specified Organisms

In order to qualifying a person for the test for specified organisms, trainee analyst (Microbiologist) shall perform three coded sterilized sample. One sample shall be un-spiked and two samples spiked with NMT 100cfu of the one of the following four organisms.

E. coli

Staphylococus aureus

Salmonella spp.

Pseudomonas aeruginosa

Trainee analyst (Microbiologist) shall identify the organism in all the three samples and record the Result in LOG.

Team leader /Designee shall review the results and approve the analyst based on the results.

The analyst (microbiologist) stands qualified for Test for specified organism only if the test results meet the acceptance criteria given ahead under Table I.


Analyst Qualification procedure for the Identification of Microorganisms by Microbial  Identification System.

In order to qualifying a trainee analyst (microbiology) for the identification of the organisms using Microbial Identification system, trainee analyst (microbiology) shall perform three pre-coded culture suspensions, plate or slant of the following.

E. coli

Staphylococus aureus

Salmonella typhimurium.

Pseudomonas aeruginosa

Clostridium sporogenes

Candida albicans

Trainee analyst (microbiologist) shall perform the identification test in the presence of supervisor.

Trainee analyst (microbiologist) shall record the data in Respective qualification data.

The print out of the identification report shall be attached along with the Respective qualification data.

Photocopy of the data shall be attached along with the qualification record.

Team leader /Designee shall review the results and approve the analyst based on the results.

The analyst (microbiologist) stands qualified for the Identification by Vitek2, if the test results meet the acceptance criteria given ahead under Table I. 


Acceptance Criteria for the Analyst Qualification

Acceptance criteria for the analyst qualification are as per table given below.

TABLE I

Sr. No.
Test
Acceptance criteria
1.        
Sterility Test
Ø   All the three sterile test samples shall not show any evidence of microbial contamination.
Ø   Media negative control shall not show any evidence of microbial contamination.
Ø   Media used for the testing shall qualify the growth promotion test.
2.        
Bacterial Endotoxin Test
If value of the measured sensitivity of the previously approved lot of lysate is not less than 0.5λ and not more than 2λ, the analyst stands qualified for the testing.
3.        
Microbial Enumeration test (By Pour plate/ membrane filtration)
Growth obtained by the microbiologist must not differ by a factor greater than 2 from the calculated value for the standardized inoculum in all the three replicates.
4.        
Test for specified organisms
Specified Organism Identified by the Microbiologist shall match with the organism spiked by the Head Microbiology in all the three replicates.
5.        
Identification of Microorganisms by Microbial Identification System
Organism Identified by the Microbiologist shall match with the organism given by the Head Microbiology in all the three replicates.



Re-qualification:

In case the analyst/microbiologist is not performing any test for a period of more than six months, he/she undergoes re-qualification prior to perform any test.

Before adding or changing responsibility of the microbiologist, he/she shall be qualified for the new test responsibility..

In case if microbiologist/analyst is on long term leave for the period of 6 months or more.

If some OOS is observed and the reason for the OOS has been observed to be analytical error.


Recommended LOG

A)      Details Of Coded Sample for Analyst Qualification

Name of the Microbiologist: _______________________________ Employee code: __________
Test for which Microbiologist to be Qualified:_________________________________________
Date
Sample Code
Sample Details
Done By







B)       Analyst Qualification Activity Record

Name of the Microbiologist:
Employee code:
Date
Training Title
Description
Trainee Sign/Date
Trainer Sign/Date
Remarks









C)       Qualification Data Sheet:

Name of the Microbiologist:
Emp. Code:
Test for which Microbiologist to be Qualified:
Sample Code (if Any):
Date of Start of Qualification:
Date of Completion of Qualification:
Reference to be followed for testing (If any):
Results:
Comment:
Details of  Attach Raw data sheet/s:
Conclusion: Since the Results of the test performed by the Microbiologist meets/ does not meet the acceptance criteria hence the Microbiologist Stands qualified / not qualified.
Team leader /Designee  (Sign./date)



D)      List of Qualified Analyst

Sr. No.
Analyst Name
Emp. code
Test / Instrument
Qualification status
Qualified On
Date of Re-qualification
Recorded By
Checked By












ABBREVIATIONS:

Sr. No.
Abbreviation Used
Full Form of Abbreviation
1.           
cfu
Colony Forming Unit
2.           
LAF
Laminar Air Flow
3.           
No.
Number
4.           
NMT
Not More Than
5.           
OOS
Out Of Specification
6.           
°C
Degree Celsius




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