
Access Vitamin B12 | REF 33000
Beckman Coulter Access Vitamin B12 (REF 33000) reagent pack for quantitative determination of vitamin B12 in human serum and plasma using Access immunoassay systems.

The Beckman Coulter Access Total Thyroxine / T4 (REF 33800) is an in vitro diagnostic immunoassay reagent designed for the quantitative determination of total thyroxine (T4) levels in human serum and plasma using Access family immunoassay analyzers. It supports laboratories performing thyroid function testing as part of routine clinical chemistry and endocrinology workflows.
Key Features
- Ready-to-use reagent pack formatted for Beckman Coulter Access immunoassay systems
- Competitive binding immunoenzymatic assay employing chemiluminescent detection
- Designed for quantitative measurement of total T4 (bound and free fractions) in serum and plasma
- Onboard barcoded reagent pack to support automated handling and inventory tracking
- Engineered for consistency with the broader Access thyroid panel (TSH, FT4, FT3, T-Uptake)
Clinical Applications
- Assessment of thyroid function and screening for thyroid disorders
- Aid in the differential evaluation of hyperthyroidism and hypothyroidism
- Monitoring of patients receiving thyroid replacement or antithyroid therapy
- Use alongside complementary thyroid markers as part of a laboratory thyroid testing panel
Product Information
- Brand: Beckman Coulter
- Product: Access Total Thyroxine / T4
- REF / Catalog Number: 33800
- Category: Beckman Coulter Access Reagents
- Platform Compatibility: Beckman Coulter Access family immunoassay systems (refer to current manufacturer compatibility matrix)
- Sample Types: Human serum and plasma (refer to IFU for accepted anticoagulants)
- Tests per Pack: Not specified in the located sources
- Storage: Refer to manufacturer Instructions for Use (IFU) for storage and stability conditions
- Intended Use: In vitro diagnostic use by trained laboratory professionals per the manufacturer IFU
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