Levey-Jennings Chart Maker with Westgard Rules
Paste control results and get a printable Levey-Jennings chart with ±1, 2 and 3 SD lines and each run checked against the Westgard rules.
Quality control is the record an inspector reads first: control runs, charts, rule violations and what was done about each one. The tools here do the arithmetic; the guides explain what the CLIA quality and proficiency testing rules ask of a small lab.

Paste control results and get a printable Levey-Jennings chart with ±1, 2 and 3 SD lines and each run checked against the Westgard rules.
Paste control results to get the mean, SD, CV and ±1, 2 and 3 SD limits for a new lot or a monthly QC summary, ready to print.
Score a PT event by analyte, see if it is satisfactory, flag an unsuccessful history, and check one result against its CLIA limit with an SDI.
Walk CMS's five IQCP risk components, record each hazard and its control, and print a draft quality control plan for the director to sign.
Turn TEa, bias and CV into a sigma metric, with CLIA's PT limits as TEa presets and the Westgard Sigma Rules that fit the result.
Assigned vs measured values by level: recovery, pass or fail against your lab's limits, and the reportable range the passing levels support.