JMB

eISSN 2093-6338

Table. 5.

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
© Lab Med Online