A screenshot can communicate one result quickly while removing the information needed to interpret it. The missing context may be a unit, a lot identifier, a qualification or a later page. Checking the complete report helps recover that context, although even a complete issued report is not necessarily the full laboratory data record.
Identify what the image includes and excludes
Begin with the visible boundaries. Is the image a complete page, a table or a single result row? Does it show the column headings, units and footnote markers? A cropped number can be accurately copied and still be misleading without its basis.
| Visible extract | Potentially missing information |
|---|---|
| 99.2% | Which property and calculation basis the percentage describes |
| Pass | The test, specification and decision rule |
| 9.8 | The unit and whether the amount is per vial or per volume |
| A plotted peak | The full run, integration and relevant surrounding peaks |
For the numerical example, a caption added by someone sharing the image is not the same as the original report heading. Confirm the unit and sample basis in the source document.
Also check whether the screenshot combines elements from different pages or files. A collage can be useful for discussion if labelled, but it should not be mistaken for a page the laboratory issued.
Check completeness at the document level
NIST’s reporting crosswalk highlights unique document identification and a clearly identifiable document end, with page numbering described as good practice. These features help a reader recognise whether the report set is complete.NIST — Reporting-results crosswalk (opens in a new tab)
Compare the report identifier across pages, read the qualifications and confirm the version. A first page with a logo does not prove that the attached result page belongs to it.
A complete report can also contain references to separate attachments. If an interpretation depends on an attachment that is not supplied, record that limitation rather than assume the attachment confirms the summary.
Distinguish the report from underlying analytical records
FDA’s records-and-reports Q&A explains that a printed chromatogram is not the entire electronic raw-data record. It can omit the injection sequence, instrument and integration methods, and audit trail. The discussion is in a pharmaceutical manufacturing context.FDA — CGMP records and reports Q&A (opens in a new tab)
The general distinction helps avoid two opposite assumptions. A final report is not automatically the complete experimental record, but a reader does not necessarily need every raw file to answer a simple document-identification question.
Match the requested evidence to the concern. Missing units call for the full results table. A suspected integration issue may require the chromatographic data and processing information. An uncertain lot match requires the sample-identification record.
Requesting raw data without defining the question can produce a large collection that still fails to resolve the original ambiguity.
Keep an extract traceable when using it
If an extract is needed for a note or comparison, identify its report number, revision and page, and keep the complete source accessible to the intended reviewer. Preserve relevant units, headings and qualifications with the extract.
Avoid enhancing a faint digit into a guessed result. Image processing or manual transcription cannot establish what an illegible original field said. Ask for a clearer issuer copy when a character affects the interpretation.
A screenshot may be the only evidence currently available. In that case, state what it visibly supports and what remains missing. This is more useful than either discarding it entirely or describing it as a complete authenticated report.
Sources and further detail
- NIST — Reporting-results crosswalk (opens in a new tab)
Unique report identification, document end and page-number good practice in the official 2018 crosswalk.
- FDA — CGMP records and reports Q&A (opens in a new tab)
Question 4 read for printed chromatograms versus complete electronic data. Regulatory context stated; no claim that every research report must disclose all raw data publicly.
Sources checked 19 September 2026. Worked examples are illustrative unless a supplied report is explicitly identified. This article has not undergone independent scientific peer review.