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- CD4 Levy-Jennings Charting Procedure
- Audit reference: Test and Control Articles Section
- CD4 LJ Chart TEMPLATE
- Audit reference: Test and Control Articles Section - CD4 LJ Example
- Chemistry Levy-Jennings Charting Procedure
- Audit reference: Test and Control Articles Section
- LJ Hematology Template
- Audit reference: Test and Control Articles Section -Example Hematology LJ Template
- Chemistry LJ Chart TEMPLATE
- Audit reference: Test and Control Articles Section -Example Chemistry LJ Template
- Hematology Levy Jennings Chart SOP
- Audit reference: Test and Control Articles Section
Laboratory quality control material is usually run at the beginning of each shift, after an instrument is serviced. Levey-Jennings chart is a graph that quality control data is plotted on to give a visual indication whether a laboratory test is working well.The distance from the mean is measured in standard deviations (SD).