Table. 5.
Monitoring practices for blood sample collection and sample quality
| Questionnaire | N | % |
|---|---|---|
| Turnaround time monitoring from blood collection to laboratory reception | (N=81) | |
| Yes | 37 | 45.7 |
| No | 41 | 50.6 |
| Others | 3 | 3.7 |
| Time limit between blood collection to laboratory reception | (N=37) | |
| 30 minutes | 11 | 29.7 |
| 1 hour | 12 | 32.4 |
| 2 hours | 1 | 2.7 |
| Others |
13 | 35.1 |
| How do you evaluate whether the blood collection is being conducted as required? (multiple responses allowed) | (N=81) | |
| Assessment of knowledge (test) | 19 | 23.5 |
| Assessment of actual performance (audit) | 33 | 40.7 |
| Setting and monitoring quality control indicators for the preanalytical stage | 38 | 46.9 |
| No evaluation | 20 | 24.7 |
| Others | 3 | 3.7 |
| Which preanalytical quality indicators are monitored in the laboratory? (multiple responses allowed) | (N=38) | |
| Labeling error rate (%) | 13 | 34.2 |
| Inadequate container utilization (%) | 24 | 63.2 |
| Sample hemolysis rate (%) | 27 | 71.1 |
| Sample coagulation rate (%) | 27 | 71.1 |
| Insufficient sample quantity rate (%) | 28 | 73.7 |
| Anticoagulant ratio error rate (%) | 17 | 44.7 |
| Sample breakage rate (%) | 14 | 36.8 |
| Sample loss rate (%) | 13 | 34.2 |
| Sample mismatch rate (%) | 19 | 50.0 |
| Others | 5 | 13.2 |
| Do you monitor in vitro hemolysis for general chemical tests? | (N=81) | |
| Yes | 76 | 93.8 |
| No | 5 | 6.2 |
| What method is used to detect in vitro hemolysis for general chemical tests? (Multiple responses allowed) | (N=76) | |
| Visual confirmation | 65 | 85.5 |
| Camera | 9 | 11.8 |
| Hemolysis index (H-index) | 31 | 40.8 |
| Others | 1 | 1.3 |
| How is the result of the H-index reported? | (N=31) | |
| Categorical variables (e.g., grade 1, grade 2, etc.) | 23 | 74.20 |
| Continuous variables (e.g., 2 mg/dL) | 3 | 9.70 |
| Others | 5 | 16.10 |
| What is the basis for the H-index-based sample rejection criteria? | (N=31) | |
| Laboratory self-settings | 16 | 51.60 |
| Manufacturer settings | 11 | 35.50 |
| Reference to literature | 2 | 6.50 |
| Others | 2 | 6.50 |
| Is internal quality control applied to the H-index? | (N=31) | |
| Yes | 3 | 9.70 |
| No | 28 | 90.30 |
| What internal quality control materials are used when applying internal quality control to the H-index? | (N=3) | |
| Purchase QC material | 2 | 66.70 |
| Direct laboratory manufacturing | 1 | 33.30 |
*Other responses included ‘15 minutes’, ‘No specific time limit’, and ‘Varies depending on the test’.
Abbreviation: QC, quality control.
Lab Med Online 2024;14:90~99 https://doi.org/10.47429/lmo.2024.14.2.90
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