Blood Collection Supplies: Tubes, Needles & Bags — UK Buyer's Guide (2026)

Accurate blood collection is fundamental to clinical diagnosis and patient safety. Selecting the right combination of tubes, needles, and collection systems for your setting reduces pre-analytical errors, protects staff from needlestick injury, and ensures sample integrity. This guide covers everything UK healthcare buyers need to know about blood collection supplies.

The Blood Collection System: Key Components

A complete blood collection system typically comprises:

  • Vacuum collection tubes (e.g. Vacutainer-style) — pre-evacuated tubes containing specific additives matched to the test required
  • Safety blood collection needles — multi-sample needles with integrated safety mechanisms
  • Needle holders / adapters — connect the needle to the tube
  • Blood bags — for whole blood collection, donation, and transfusion
  • Winged collection sets (butterflies) — for difficult veins, paediatric patients, and hand veins
  • Tourniquets — to aid vein visualisation and access

Blood Collection Tube Colour Coding Guide

UK laboratories follow the internationally recognised colour-coded stopper system. Always confirm the required tubes with your laboratory before ordering:

  • Red / Gold (SST): Serum separator — biochemistry, serology, immunology
  • Purple / Lavender (EDTA): Full blood count (FBC), HbA1c, blood film
  • Light blue (citrate): Coagulation studies (PT, APTT, INR) — must be filled to the line
  • Green (lithium heparin): Plasma biochemistry, urgent samples
  • Grey (fluoride oxalate): Glucose, lactate
  • Black (ESR): Erythrocyte sedimentation rate
  • Pink (EDTA): Blood group and crossmatch — often requires hand-labelling at the bedside
  • Yellow (ACD): Blood cultures, HLA typing, paternity testing

Vacuum Tubes vs Syringe Collection

  • Vacuum (closed) systems: The gold standard for routine phlebotomy. Closed system reduces contamination risk, pre-set fill volumes improve sample quality, and multi-sample needles allow multiple tubes from a single venepuncture.
  • Syringe collection: Useful for difficult veins, paediatric patients, or when vacuum pressure may cause vein collapse. Requires careful transfer to tubes to avoid haemolysis and additive contamination.
  • Winged sets (butterflies): Combine the benefits of both — gentle collection with vacuum tube compatibility. Preferred for hand veins, elderly patients, and children.

Choosing Blood Collection Needles

  • Gauge: 21G is standard for routine adult venepuncture. 23G for difficult or small veins. 16–18G for blood donation.
  • Safety mechanism: All needles used in UK clinical settings should incorporate a safety mechanism in compliance with the Health and Safety (Sharp Instruments in Healthcare) Regulations 2013.
  • Multi-sample vs single-use: Multi-sample needles allow multiple tubes from one venepuncture — essential for vacuum tube systems.

Blood Bags for Collection & Transfusion

Blood bags are used for whole blood donation, component preparation, and transfusion. Key considerations include capacity (250ml, 350ml, 450ml), anticoagulant solution (CPDA-1 or SAG-M), and whether a single or satellite (multi-pack) system is required for component separation. See our Blood Bags UK Buying Guide for full details.

Order of Draw

When collecting multiple tubes, the correct order of draw prevents additive carryover between tubes. The standard UK order is:

  • Blood cultures (yellow)
  • Coagulation (light blue)
  • Serum / SST (red/gold)
  • Heparin (green)
  • EDTA (purple/lavender)
  • Fluoride oxalate (grey)

Always follow your laboratory's local guidance, as protocols may vary.

Top Blood Collection Products at Medvana

Medvana supplies a comprehensive range of blood collection products for hospitals, GP surgeries, private clinics, and care homes across the UK, including vacuum collection tubes, safety blood collection needles, winged sets, blood bags, and tourniquets.

Browse our full Blood Collection range →

Frequently Asked Questions

What tubes do I need for a full blood count?
A full blood count (FBC) requires an EDTA tube — purple or lavender stopper. Always confirm with your laboratory.

What is the correct order of draw for blood tubes?
The standard UK order is: blood cultures, coagulation (blue), serum (gold/red), heparin (green), EDTA (purple), fluoride (grey). Follow your local laboratory protocol.

Are safety needles required for phlebotomy in the UK?
Yes. The Health and Safety (Sharp Instruments in Healthcare) Regulations 2013 require the use of safer sharps, including safety-engineered blood collection needles, wherever reasonably practicable.

Do you supply blood collection supplies in bulk?
Yes — Medvana offers bulk purchasing for healthcare settings. Browse our blood collection range or contact us for a quote.

Shop Blood Collection Supplies at Medvana

Fast UK delivery on all blood collection supplies. Competitive pricing for hospitals, clinics, care homes, and GP surgeries.

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