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Rapid fibrinogen determination with the prothrombin time using a potentiophotometer
1Department of Pathology, Santa Barbara Cottage Hospital, CA 93105, USA.
Research Communications in Molecular Pathology and Pharmacology
|July 1, 1995
Summary
A new semi-automated coagulation instrument, POTENS+, rapidly determines fibrinogen (FBG) levels. This device offers precise and linear FBG measurements, validated against established automated methods.
Area of Science:
- Clinical chemistry
- Biomedical instrumentation
Background:
- The potentiophotometer (PTPH) provides an electrical analog to Beer's Law for substance concentration measurement.
- Manual determination of fibrinogen (FBG) using PTPH has been established, utilizing thrombopalstin injection similar to prothrombin time (PT) assays.
Purpose of the Study:
- To semi-automate and computerize the PTPH, creating the POTENS+ coagulation instrument.
- To evaluate the performance of POTENS+ for rapid FBG determination.
- To assess the precision, linearity, and accuracy of the POTENS+ FBG method.
Main Methods:
- Semi-automation and computerization of the potentiophotometer (PTPH) to develop the POTENS+ instrument.
- Determination of FBG levels using POTENS+ within 3-20 seconds post-PT.
- Validation of POTENS+ accuracy by comparison with automated FBG methods on the MLA Electra 1000C Coagulation Timer, using the automated Clauss method as the reference.
Main Results:
- POTENS+ enables rapid FBG determination.
- The study will provide data on the precision, linearity, and reference range for the POTENS+ FBG method.
- Accuracy assessment will compare POTENS+ results against established automated methods.
Conclusions:
- The POTENS+ instrument represents a significant advancement in semi-automated FBG measurement.
- This new method offers rapid, precise, and accurate fibrinogen quantification.
- POTENS+ shows potential for efficient integration into clinical coagulation testing workflows.