Qualitative QC
Managing qualitative (pass/fail) quality control records.
Qualitative QC is for tests with a pass/fail result rather than a numeric value — malaria rapid diagnostic tests (RDTs), HIV rapid tests, urine dipsticks, pregnancy tests, and similar point-of-care tests.
How qualitative QC works
For these tests, QC is performed by running the test's positive and negative controls and confirming they give the expected result:
- Positive control → must show a positive result
- Negative control → must show a negative result
If either control fails, the lot is flagged as failed and should not be used for patient testing.
Entering a qualitative QC record
- Go to Quality & Samples → QC
- Click Qualitative QC tab
- Click New record
- Select the test type (e.g. Malaria RDT, HIV Ag/Ab)
- Enter the lot number and expiry date
- Record the positive control result (Pass / Fail)
- Record the negative control result (Pass / Fail)
- Enter who performed the check
- Click Submit
Lot management
Kanta tracks each reagent lot separately. When a new lot number arrives:
- Go to Quality & Samples → QC → Qualitative QC → Lots
- Click Add lot
- Enter the lot number, expiry date, and test type
- Perform and record QC for the new lot before using it for patients
Kanta alerts you 14 days before a lot expires so you can order a replacement in time.
Viewing QC history per lot
Click any lot number in the qualitative QC list to see its full QC history — every check performed, by whom, and the result. This record is useful for accreditation audits and root cause analysis if a test lot is later recalled.
Failed lot protocol
If a lot fails QC:
- Mark the lot as Failed in Kanta
- Quarantine the remaining stock — do not use for patients
- Contact the supplier for a replacement
- Document the failure and corrective action in the Notes field
Kanta prevents a failed lot from being selected for patient test recording until it is marked as resolved or disposed of.
For help, contact your Lab Manager or email [email protected].