Decentralized testing for prothrombin time and activated partial thromboplastin time using a dry chemistry portable...

Area of Science:

• Clinical Chemistry
• Point-of-Care Testing
• Medical Diagnostics

Background:

• Previous research confirmed the accuracy of a portable blood coagulation analysis system.
• Decentralized testing in hospital settings requires validated, reliable methods.

Purpose of the Study:

• To evaluate the deployment and performance of a portable dry chemistry coagulation system in various hospital locations.
• To compare results from the portable system with a central laboratory for key coagulation parameters.

Main Methods:

• Nursing staff were trained to operate the portable system at the point of care (surgical ICU, CCU, cardiology clinic).
• Coagulation tests (prothrombin time, activated partial thromboplastin time) were performed on patient samples using the dry chemistry system and compared to central laboratory results.
• Quality control measures were implemented, including daily testing by laboratory staff.

Main Results:

• The portable dry chemistry system showed acceptable correlation coefficients with the central laboratory across multiple sites, users, and instruments.
• Testing was conducted over an extended period, involving different reagent lots and equipment.
• Results were consistent despite variations in testing locations and personnel.

Conclusions:

• The portable dry chemistry system is a suitable alternative to central laboratory testing for prothrombin time and activated partial thromboplastin time.
• Appropriate training and robust quality assurance are crucial for successful implementation.
• This technology enhances decentralized blood coagulation analysis capabilities in clinical settings.