Product Overview

The 2ml Sodium Fluoride + EDTA K2 Blood Collection Tube is a sterile, evacuated blood collection tube designed specifically for tests that require stable glucose and metabolic analyte levels. By combining sodium fluoride with EDTA K2, this tube effectively prevents blood coagulation while inhibiting glycolysis, ensuring that glucose concentration remains as close as possible to in vivo levels from the moment of collection.

This tube is widely used in hospitals, diagnostic laboratories, and health screening centers for glucose-related assays. Its precise 2 ml draw volume, standardized gray cap, and reliable vacuum system make it a dependable choice for routine and high-throughput clinical testing. For laboratories reviewing glucose tube options, technical specifications and supply support are available through EDTA TUBE.

What Is a Sodium Fluoride + EDTA K2 Blood Collection Tube

A Sodium Fluoride + EDTA K2 blood collection tube is a vacuum blood tube containing two functional additives:

• Sodium Fluoride (NaF): Acts as a glycolysis inhibitor by suppressing enzymatic activity in red blood cells, helping preserve glucose levels after blood collection.

• EDTA K2: Functions as an anticoagulant by binding calcium ions, preventing clot formation, and maintaining whole blood integrity.

This dual-additive formulation is especially important in glucose testing, where post-collection metabolism can lead to falsely low results if glycolysis is not effectively inhibited. The 2 ml tube volume supports standardized testing while minimizing patient discomfort during sample collection.

Key Features and Advantages

Accurate Glucose Preservation

Sodium fluoride effectively slows down glycolysis, reducing glucose degradation during transport and storage. This helps laboratories obtain more reliable glucose and lactate measurements.

Effective Anticoagulation

EDTA K2 ensures that blood remains unclotted, allowing for smooth processing and consistent analysis without interference from fibrin formation.

Stable Vacuum and Precise Draw

The pre-calibrated vacuum system guarantees a consistent 2 ml blood draw, maintaining the correct blood-to-additive ratio required for accurate test results.

Medical-Grade Tube Material

Manufactured from transparent medical-grade PET, the tube provides excellent chemical stability, impact resistance, and clear visibility of the sample.

Secure Closure System

The gray rubber stopper and cap create a tight seal to prevent leakage and contamination during handling and transportation.

Clinical Applications

The 2ml Sodium Fluoride + EDTA K2 Blood Collection Tube is commonly used in diagnostic and clinical settings for tests where glucose stability is critical, including:

• Blood glucose testing

• Oral glucose tolerance test (OGTT)

• Lactate measurement

• Metabolic and endocrine screening

• Diabetes monitoring and screening programs

These applications rely heavily on sample integrity during the pre-analytical phase, making tube quality and additive accuracy essential.

Laboratories sourcing glucose collection tubes should prioritize consistent additive formulation and vacuum performance. You can explore qualified supply options and documentation support at EDTA TUBE.

How to Use the 2ml Sodium Fluoride + EDTA K2 Tube

1. Verify patient identity and prepare the venipuncture site according to standard procedures.

2. Inspect the tube to ensure it is within its expiration date and free from damage.

3. Perform venipuncture and allow the tube to fill automatically to the 2 ml mark via vacuum.

4. Gently invert the tube 8–10 times immediately after collection to mix blood with additives.

5. Transport and process the sample according to laboratory protocols to ensure optimal accuracy.

Proper mixing and timely handling are essential to maximize the effectiveness of sodium fluoride and EDTA K2.

Importance of Choosing a Reliable Supplier

For tubes containing chemical additives, manufacturing precision directly affects test accuracy. Variations in sodium fluoride or EDTA K2 dosage, inconsistent vacuum levels, or substandard materials may compromise glucose stability and lead to unreliable results.

A trusted supplier ensures:

• Accurate additive dosing

• Consistent vacuum calibration

• Batch traceability and quality control

• Compliance with international medical consumables standards

Working with an experienced manufacturer helps laboratories and distributors maintain consistent testing performance. For detailed specifications, samples, or bulk purchasing discussions, EDTA TUBE provides technical support and sourcing assistance.

Product Specifications

• Draw Volume: 2 ml

• Additives: Sodium Fluoride + EDTA K2

• Tube Material: Medical-grade PET

• Tube Size: 13 × 75 mm

• Cap Color: Gray

• Sterilization: EO or gamma sterilized

• Intended Use: Glucose and metabolic testing

• Shelf Life: Labeled per batch