# Call rate The Call rate field displays the percentage of loci on the array for which a genotype call was successfully made. Call rate is one of the key metrics used to determine array sample [quality](/emedgene/emedgene-analyze-manual/reviewing_a_case/lab_tab/sample-quality-section/array-sample-quality-metrics/array-sample-quality.md), alongside [log R deviation](/emedgene/emedgene-analyze-manual/reviewing_a_case/lab_tab/sample-quality-section/array-sample-quality-metrics/log-r-deviation.md). A high call rate indicates a high-quality sample and successful genotyping. Low call rates can signify problems with the DNA sample (poor quality or quantity) or issues during the array processing. Displayed to three decimal places. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.connected.illumina.com/emedgene/emedgene-analyze-manual/reviewing_a_case/lab_tab/sample-quality-section/array-sample-quality-metrics/call-rate.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.