The Roche CEA Elecsys (REF 4491777190) is an electrochemiluminescence immunoassay (ECLIA) reagent kit intended for the in vitro quantitative determination of carcinoembryonic antigen (CEA) in human serum and plasma. The assay is designed for use on Roche cobas e immunoassay analyzers as part of the Elecsys tumor marker menu, supporting laboratories that require standardized, automated CEA testing workflows.

Key Features
- Methodology: Electrochemiluminescence immunoassay (ECLIA) using the sandwich principle with biotinylated and ruthenium-labeled monoclonal anti-CEA antibodies.
- Platform compatibility: Designed for Roche cobas e immunoassay analyzers within the Elecsys product line.
- Sample types: Human serum and plasma as defined in the manufacturer's instructions for use.
- Total assay duration: Not specified in the located sources.
- Tests per kit: Not specified in the located sources.
- Calibration and controls: Compatible with dedicated Elecsys CEA CalSet and PreciControl Tumor Marker materials (sold separately).
- Storage: Refer to the official package insert for storage and on-board stability conditions.

Clinical Applications
- Tumor marker testing: Quantitative measurement of CEA as part of laboratory immunoassay panels.
- Oncology laboratory workflows: Supports CEA monitoring protocols defined by the ordering clinician and laboratory.
- Routine and high-throughput laboratories: Suitable for centralized clinical chemistry and immunoassay departments using cobas e systems.
- Intended use: In vitro diagnostic use as described by the manufacturer; refer to local regulatory status and the official IFU.

Product Information
- Product: CEA Elecsys
- Brand: Roche
- Category: Roche Reagents
- REF / UPN: 4491777190
- Product line: Elecsys immunoassay reagents
- Pack size: Not specified in the located sources.
- Regulatory status: Refer to local Roche representative and official labeling for region-specific registration.