WS/T 359-2024 in English

VALID

Specimen collection and processing for common items of thrombosis and hemostasis testing

Issued on:2024-05-09
Implemented on:2024-11-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $179.00
$174.00

Standard No:	WS/T 359-2024
Document status:	VALID
Title in English:	Specimen collection and processing for common items of thrombosis and hemostasis testing
Title in Chinese:	血栓与止血检验常用项目的标本采集与处理
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:	specimen collection blood collection volume pediatric blood collection personnel dedicated low-volume blood collection tubes specimen transportation temperature control conventional transportation

Introduction

Core changes in the standard revision

Dimensions	2011 Edition	2024 Edition
Needle specifications	Not clearly divided into different populations	Adults 19G-21G, children/small veins 22G-23G
Anticoagulant type	Coagulation test only	Added Thromboelastometry heparin anticoagulation requirements
Information system	Not involved	Added 4 functions including Hct early warning and timeout prompt

Analysis of key technical points

1. Dynamic adjustment mechanism of anticoagulant

When the hematocrit>>55%, the dosage of sodium citrate needs to be adjusted according to the formula:
C=(1.85×10⁻³)×(100-Hct)×V
Where C is the volume of anticoagulant (ml), V is the blood collection volume (ml), and Hct is the hematocrit (%).

2. Specimen transportation temperature control

Conventional transportation: 18-24℃ (refrigeration is prohibited)
When delayed testing: PT specimens must be separated into plasma within 1 hour and transported on -70℃ dry ice
Platelet function test: Maintain 18-24℃

Implementation recommendations

Case: Anticoagulation treatment of patients with high Hct

A patient with polycythemia vera has Hct=60%, and needs to test PT/APTT:
1. Calculate the anticoagulant adjustment amount (when 2.7ml of blood is collected):
C=(1.85×10⁻³)×(100-60)×2.7=0.2ml
2. Use dedicated low-volume blood collection tubes or manually adjust the amount of anticoagulant added

Quality improvement measures

Establish a centrifuge verification system (verify platelet removal effect every 6 months)
Add a specimen time monitoring module to the information system
Provide special training for pediatric blood collection personnel on the use of butterfly needles

More samples: QC/T 942-2021 DL/T 368-2010 JC/T 2453-2018

Sample only — not a preview of WS/T 359-2024