Vacuum Blood Collection Tube Purple Top – EDTA Anticoagulant Tube for Hematology

The vacuum blood collection tube with a purple top is a critical component in modern laboratory testing and diagnostics. These tubes are preloaded with EDTA, an anticoagulant that binds calcium and prevents blood clotting, making them ideal for collecting whole blood samples intended for complete blood count and other hematological tests. The tubes are sterile, single-use, and compatible with most standard vacuum collection systems used in clinics, hospitals, and diagnostic labs.

What Is a Purple Top Blood Collection Tube

A purple top tube is a sterile plastic or glass tube that contains Ethylenediaminetetraacetic acid as an anticoagulant. This chemical prevents blood from clotting by binding to calcium ions in the blood. It preserves the integrity of cellular components in the blood, ensuring reliable results during testing. These tubes are most commonly used in hematology to evaluate red blood cells, white blood cells, platelets, and hemoglobin levels.

Key Features

• Contains EDTA as anticoagulant for whole blood collection
• Color coded purple cap for easy identification
• Vacuum sealed for consistent sample volume
• Sterile and individually capped for single use
• Plastic or glass construction depending on model
• Leak proof and shatter resistant design
• Compatible with standard phlebotomy systems
• Suitable for both adult and pediatric sample collection
• Labeling area for patient identification and tracking
• Consistent additive concentration for accurate test results

Specifications

• Tube type: Vacuum blood collection tube
• Cap color: Purple or lavender
• Additive: K2 EDTA or K3 EDTA
• Volume: Typically 2ml to 5ml
• Material: Polyethylene terephthalate or borosilicate glass
• Dimensions: Standard 13mm x 75mm or 13mm x 100mm
• Sterility: EO sterilized and pyrogen free
• Shelf life: Up to 24 months from date of manufacture
• Packaging: 100 pieces per box or custom pack sizes
• Intended use: Single use only

Applications

• Complete blood count testing in medical labs
• Hematology investigations in hospitals and clinics
• Blood grouping and crossmatching
• Blood bank sample collection
• Monitoring of chronic conditions such as anemia or leukemia
• Field collection kits for mobile medical units
• Research laboratories conducting cellular analysis

How It Works

The tube works on vacuum suction. When a needle is inserted into a vein and the opposite end is connected to a needle holder, the vacuum inside the tube pulls a precise volume of blood into the tube. The EDTA inside immediately mixes with the blood and prevents clotting. The sample remains stable for a specified duration, allowing for proper analysis without degradation.

Benefits of Using Purple Top Tubes

• Preserves whole blood for up to 48 hours at refrigerated temperatures
• Provides accurate blood counts without cellular breakdown
• Minimizes risk of clotting and re-draws
• Supports automated hematology analyzers and manual counts
• Reduces hemolysis and platelet aggregation
• Color coded for clear visual sorting and handling
• Minimizes contamination with tamper proof seal

Best Practices for Use

• Invert the tube gently 8 to 10 times after collection to mix blood with EDTA
• Do not shake or vortex to prevent hemolysis
• Store samples at 2 to 8 degrees Celsius if not tested immediately
• Always use new gloves and a sterile needle for each draw
• Label the tube immediately after collection with patient ID
• Dispose of used tubes in medical waste bins according to biohazard protocols

Storage and Handling

• Keep in a dry place away from direct sunlight
• Store between 4 and 25 degrees Celsius
• Do not use after the expiration date
• Do not re sterilize or reuse
• Keep sealed until ready to use to maintain sterility

Recommended For

• Hospitals and referral labs
• Private diagnostic centers
• Clinical research labs
• Veterinary clinics
• Blood banks and donor centers
• Home care sample collection services

Why Choose Our Purple Top Tubes

• Reliable vacuum seal for consistent sample volume
• Available in bulk packs to support high volume testing
• Compatible with automated and manual test systems
• Manufactured under strict medical device standards
• Local and nationwide delivery available

Customer Satisfaction

Medical professionals trust our vacuum tubes for their consistency, quality, and safety. Our product is known for reducing redraws, saving time, and maintaining integrity from the point of collection to the lab. Whether you are equipping a new clinic or restocking your lab, these tubes meet every expectation for reliability.

Ordering and Availability

The Purple Top Vacuum Blood Collection Tubes are in stock and available for delivery within major regions. Same day dispatch is offered for local orders. Discounts available for hospitals and bulk buyers. Secure packaging ensures safe delivery without breakage or contamination risk.

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