IQC Daily Log template
A log in the Internal Quality Control procedure (PR23), mapped to ISO 15189:2022 clause 7.3.7.2. Fill it in daily. Used by the laboratory team.
LogISO 15189 · 7.3.7.2Daily
Calculated automaticallyRed = outside limits
Your LaboratoryIQC Daily Log | YL-LAB-LOG-23-F04 v1.0
Record: IQC Daily Log — October 2026
Run controls before patient samples. Record actual result and compare with ±2SD and ±3SD limits. Apply Westgard Rules. HOLD patient results if QC fails. Open NC (PR07-F01) for repeated failures.
| Day | Date | Test / Analyte | Control Name | Lot No. | Level (L1/L2/L3) | Result | Accepted Range (Mean ±2SD) | Westgard Rule Violated | Status (PASS/FAIL) | Analyst Initials | Action Taken (if failed) | NC No. (if opened) | Reviewed by |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-01 | Glucose | T. Moyo | L2409-A | 4.94 | 4.99 | PASS | TM | None required | NC-26-001 | S. Dlamini | ||
| 2 | 2026-10-02 | Creatinine | R. Naidoo | L2410-B | 5.05 | 5 | PASS | RN | None required | NC-26-002 | A. Mensah | ||
| 3 | 2026-10-03 | ALT | S. Dlamini | L2411-C | 4.91 | 5 | PASS | SD | None required | NC-26-003 | L. Banda | ||
| 4 | 2026-10-04 | Haemoglobin | A. Mensah | L2412-D | 5.07 | 5 | FAIL | AM | Investigated and repeated: within limits | NC-26-004 | K. Otieno | ||
| 5 | 2026-10-05 | Potassium | L. Banda | L2413-A | 5.04 | 5.02 | PASS | LB | None required | NC-26-005 | T. Moyo | ||
| 6 | 2026-10-06 | Glucose | K. Otieno | L2414-B | 5.03 | 5.01 | PASS | KO | None required | NC-26-006 | R. Naidoo | ||
| 7 | 2026-10-07 | Creatinine | T. Moyo | L2415-C | 5.08 | 5 | PASS | TM | None required | NC-26-007 | S. Dlamini | ||
| 8 | 2026-10-08 | ALT | R. Naidoo | L2416-D | 4.93 | 4.98 | PASS | RN | None required | NC-26-008 | A. Mensah |
Westgard Rules Quick Reference
| Rule | Action | Criterion | Interpretation |
|---|---|---|---|
| 1₃ₛ | REJECT | One result >mean ±3SD | Excessive random error |
| 2₂ₛ | REJECT | Two consecutive results exceed the same ±2SD limit | Systematic error |
| R₄ₛ | REJECT | Range between two levels >4SD | Random error |
| 10ₓ | REJECT | 10 consecutive results on same side of mean | Systematic error / drift |
| 1₂ₛ | WARNING | One result >mean ±2SD (no other rule violated) | Normal random variation — continue |
Sign-off
| Role | Name | Signature | Date |
|---|---|---|---|
| Completed by | |||
| Reviewed by |
Shaded cells are calculated automatically. Values in red are outside their limits. † marks a corrected value (see Corrections).
Controlled document. Printed copies are uncontrolled unless stamped.Page 1
A4 landscape · first page · showing 13 of 13 rowsExactly as LabToolkit Pro prints it — with your logo and colours
What it records
- Day
- Date
- Test / Analyte
- Control Name
- Lot No.
- Level (L1/L2/L3)
- Result
- Accepted Range (Mean ±2SD)
- Westgard Rule Violated
- Status (PASS/FAIL)
- Analyst Initials
- Action Taken (if failed)
- NC No. (if opened)
- Reviewed by
- Rule
- Action
- Criterion
- Interpretation
Instructions on the form
- Run controls before patient samples. Record actual result and compare with ±2SD and ±3SD limits. Apply Westgard Rules. HOLD patient results if QC fails. Open NC (PR07-F01) for repeated failures.
Sign-off
- Completed by
- Reviewed by
Related templates
- IQC Frequency Determination Form (PR23-F01)
- In-house IQC Preparation Log (PR23-F02)
- IQC Statistical Tool — Levey-jennings Chart Setup (PR23-F03)
- CV Calculator — Alternative IQC Method (PR23-F05)
- Levey-Jennings chart & Westgard multirule monitor (PR23-T01)
- Sigma metric & QC strategy planner (PR23-T02)
- Guide: Levey-Jennings charts and Westgard rules
- Guide: ISO 15189 documentation checklist
Clause references are to ISO 15189:2022; check them against your licensed copy of the standard.