WS/T 225-2024 in English
VALIDCollection and processing of blood specimens for clinical chemistry tests
- Issued on:2024-05-09
- Implemented on:2024-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$309.00
$300.00
$300.00
| Standard No: | WS/T 225-2024 |
| Document status: | VALID |
| Title in English: | Collection and processing of blood specimens for clinical chemistry tests |
| Title in Chinese: | 临床化学检验血液标本的采集与处理 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-05-09 |
| Implemented on: | 2024-11-01 |
| ICS Classification: | 11.020-Medical Sciences and health care facilities in general |
| Chinese Classification: | C50-Sanitation in general |
| Professional Classification: | WS-Hygiene |
| Related Keywords: | blood collection
whole blood blood specimens blood glucose testing uncentrifuged whole blood |
Introduction
Core changes in the standard revision
| 2002 version | 2024 version | Clinical significance |
|---|---|---|
| Only standardize venous blood | Add arterial blood/capillary blood | Cover all scenarios of blood collection needs |
| Simple specimen processing | Refine transportation and storage requirements | Reduce pre-analysis errors |
| Informative Appendix A/B | Replaced with stability data | Provide a basis for practical operation |
Analysis of key technical points
4.1 Venous blood sampling standards
Preferably select the antecubital veins (median vein > cephalic vein > basilic vein). Children should note:
- Infants ≤4 months: scalp/femoral vein
- Children ≥3 years: median cubital vein
- Prohibited sites: medial wrist/lower limb vein
4.4 Effect of specimen type
| Specimen type | Applicable items | Interference factors |
|---|---|---|
| Serum | Routine biochemistry | Fibrinogen interference |
| Plasma | Coagulation/emergency | Anticoagulant effect |
| Whole blood | Blood lead/Glycated Hb | Hematocrit effect |
Implementation recommendations
7.1 Specimen processing timeliness
Case: After a tertiary hospital implemented a graded treatment system, TAT before blood glucose testing was shortened by 35%
- General items: serum separation within 2 hours
- Unstable items (lactic acid/blood ammonia): immediately send for testing in an ice bath
- Cryoglobulin: keep warm at 37°C throughout the process
Appendix A Application Guide
Key data:
- Glucose: uncentrifuged whole blood at room temperature ≤2 hours (addition of fluoride can extend to 24 hours)
- Potassium: whole blood refrigerated ≤2 hours (secondary centrifugation is prohibited)
- Blood gas analysis: test within 30 minutes after blood collection
Sample only — not a preview of WS/T 225-2024
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