Description
Use six short questions to record an internal quality control (IQC) problem. IQC uses control samples to watch for changes in a test. Follow your laboratory’s response procedure first, then use the sheet for notes and discussion.
What is included
- An editable Word sheet designed to fit on one page.
- A matching one-page printable PDF.
- A completed one-page fictional example about a control result flagged soon after a new vial was opened. The cause is still unknown.
How to use it
Record what happened, what else has been checked, recent changes, available records and questions for an experienced colleague. Short notes are enough. Write “not known” where you need help.
Designed for staff who are new to laboratory quality as well as experienced staff who want a compact record. You do not need to fill every gap yourself.
The sheet helps prepare a review. It does not choose QC rules, diagnose a fault, give corrective instructions or decide whether patient results can be released. Completing it must not delay the laboratory’s response to a problem.
Read the IQC guide for more explanation. You can separately choose the free introductory email course. The Laboratory Quality A–Z explains unfamiliar terms.
Sources and further reading
- CLSI C24, fourth edition. Public overview of statistical quality control, response and recovery.
- CLSI EP23, second edition. Public overview of laboratory quality control plans.
- WHO Laboratory Quality Management System handbook, section 7-6. General principles for recording and responding to QC problems; not a statement of current accreditation requirements.
Original educational questions and a fictional example. No endorsement by the cited organisations is implied. Version 1.1, 18 October 2026. Revised in plain language.
Using this free resource
You may download and use the pack for your own learning and adapt the editable sheet for work within your own laboratory or team. Keep the Pathology Uncertainty attribution and identify any local changes. Please share a link to this page with other organisations rather than redistributing the files publicly. Do not resell the pack, include it in a paid product or course, or present it as your own work without written permission.
This is an educational preparation aid, not a validated procedure or evidence of compliance. Do not send patient-identifiable information through this website.
Access and support
No payment or website account is required. Complete the free order with your name and email to receive the download links. This does not subscribe you to a newsletter or email course. If a link fails or you need another format, contact us with your order number.