Sodium Citrate 1:9 Blood Collection Coagulation Tubes 100pcs

Sterile Sodium Citrate 1:9 Blood Collection Coagulation Tubes – 100pcs

These disposable, sterile sodium citrate blood collection tubes are an essential supply for veterinary clinics, labs, and pet animal diagnostics. Available in three sizes — 2ml, 5ml, and 10ml — these light-blue-capped plastic tubes are pre-filled with 3.2% sodium citrate (9NC) at the standard 1:9 anticoagulant-to-blood ratio, ensuring precise, reliable results for coagulation testing and fibrinolytic system analysis.

Made in Mainland China.

Whether you're running PT, APTT, or fibrinogen tests in a professional lab or a veterinary setting, these tubes deliver consistent, accurate performance every time. The exact 1:9 ratio is critical — it prevents misdiagnosis by maintaining the integrity of coagulation factor activity in the blood sample. These tubes are also suitable for short-term blood storage.

Key Features

• Material: Durable, lightweight plastic
• Chemical Additive: 3.2% Sodium Citrate (9NC Coagulation)
• Anticoagulant Ratio: 1 part citrate : 9 parts blood
• Cap Colour: Light Blue (universal coagulation indicator)
• Ring Colour: Black
• Sterile: Yes — individually sterilized
• Quantity: 100 tubes per pack
• Disposable: Single-use for safety and contamination prevention

Available Sizes

• 2ml — Tube Size: 13 × 75mm
• 5ml — Tube Size: 13 × 100mm
• 10ml — Tube Size: 16 × 100mm

Applications

• Blood coagulation testing (PT, APTT, fibrinogen)
• Fibrinolytic system analysis
• Veterinary and pet animal blood diagnostics
• Laboratory research and blood banking
• Short-term blood sample storage

Important Usage Note

Always draw sufficient blood volume to fill the tube to the indicated line. Under-filling will alter the citrate-to-blood ratio, potentially compromising coagulation test accuracy. These are single-use, disposable tubes — do not reuse.

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Authoritative Reference

For more information on proper blood collection procedures and laboratory standards, visit the CDC Laboratory Quality Resources.

Frequently Asked Questions

Q: What is the purpose of the 1:9 sodium citrate ratio in blood collection tubes?

A: The 1:9 ratio (1 part 3.2% sodium citrate to 9 parts blood) is the internationally standardized proportion for coagulation testing. This precise ratio ensures that calcium ions in the blood are properly chelated without over-anticoagulation, preserving the activity of clotting factors for accurate PT, APTT, and fibrinogen test results.

Q: Are these blood collection tubes suitable for use with pets and animals?

A: Yes. These sodium citrate coagulation tubes are designed for use in both human laboratory and veterinary/pet animal diagnostic settings. They are ideal for clinics and labs working with dogs, cats, and other animals that require blood coagulation testing.

Q: How should I choose the right tube size (2ml, 5ml, or 10ml)?

A: Select the tube size based on the volume of blood required for your test. The 2ml tube (13×75mm) is ideal for small samples or pediatric/small animal use; the 5ml tube (13×100mm) is the standard lab size; and the 10ml tube (16×100mm) is best for tests requiring larger sample volumes. Always fill to the marked line to maintain the correct citrate-to-blood ratio.

Q: Are these tubes vacuum (evacuated) or manually filled?

A: These are vacuum blood collection tubes designed for use with standard blood collection needle sets. The built-in vacuum draws the correct blood volume automatically to maintain the 1:9 ratio. Always ensure the vacuum draw is complete before removing the needle.