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Blood Collection Supplies

We provide a range of phlebotomy and blood collection supplies at Thomas Scientific, including needles, mixers, holders and tubes. blood collection tubes are essential for biological processes within the lab and can provide confidence when handling delicate samples. Both sodium citrate tubes (light blue caps) and sodium heparin tubes (green caps) available at Thomas Scientific are ideal for serum, plasma, or whole blood based on the color-coded tops. PAXgene collection tubes are ideal for collecting, transporting, and storing blood samples in preparation for DNA testing. The type of test tube and color option depends on the type of application and specific requirements in the lab. Blood collection tubes are ideal for collecting, transporting, and storing blood samples and offer compatibility with other lab instruments to help achieve clear and accurate results. Other phlebotomy supplies available include blood sample needles for extraction, as well as dispenser caps, and collection mixers for mixing and weighing, all compatible with sodium citrate tubes. Thomas Scientific also has a variety of other tubes to meet laboratory needs.

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Blood Collection Supplies

Products (46)

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  • Glass Micro-Hematocrit Capillary Tubes

    Globe Scientific

    These glass capillary tubes are designed for both safe blood collection as well as accurate micro-hematocrit determinations. Precision molded, they provide excellent sample retention during centrifugation. In addition, the tubes fill rapidly without affecting specimen integrity. The tubes are...

  • Tourniquet Straps

    Hygenic Corporation

    Hygenic® latex tourniquet straps are manufactured to the highest quality standards for use in hospitals and clinics. These disposable straps are tear resistant, slip resistant and smooth to the touch Made of latex for flexibility and patient comfort Natural amber color Dimensions: 1" x...

  • Reli® Gem Safety Blood Collection Set

    MYCO Medical Supplies

    Reli® Safety Blood Collection Sets are OSHA compliant and are available either with or without pre-attached tube holders. All Reli® products are manufactured to strict quality standards and contain unique features to improve user convenience, safety, and performance. Not made with natural...

  • Vials Plain Blue Code

    Chase Instruments

    Chase brand micro-hematocrit tubes are manufactured from soda lime glass, packed in plastic vials with reclosable snap-lock caps to maintain cleanliness. Ends may be sealed by flame or sealing clay They are available in borosilicate glass as a special order Heparinized capillary tubes are...

  • PAXgene® Blood RNA Tubes

    BD

    The PAXgene® Blood RNA Tube is intended for immediate stabilization of intracellular RNA, thereby yielding accurate and reproducible gene expression data. It is part of the PAXgene Blood RNA System that integrates the key steps of whole blood collection, intracellular RNA stabilization, and RNA...

  • Tip Top® Blood Dispenser Caps

    Labcon

    A safe and cost effective way of dispensing samples in your lab. The Tip Top® is a disposable cone shaped cap that fits all standard 13 or 16mm blood collection tubes. A small opening allows you to dispense a sample without removing the Tip Top cap so you can prepare smears on slides or dispense...

  • Vacutainer® Eclipse™ Blood Collection Needles

    BD

    The BD Vacutainer® Eclipse™ Blood Collection Needle is a safety-engineered, multi-sample blood collection needle that offers a simple, effective way to collect blood while reducing the possibility of needlestick injuries. It features a safety shield that allows for one-handed activation to...

  • Trays Tube Sealing Co

    Chase Instruments

    Cha-seal tube sealing compound. Used to seal hematocrit capillary blood collection tubes before centrifugation. Case Qty 100 trays (10 boxes-10 trays ea)

  • Vacutainer® Mononuclear Cell Preparation Tubes (CPT™ Tubes)

    BD

    The one-step, closed-system tube for blood collection, mononuclear cell separation and transportation offers convenience, safety and reproducibility that may contribute to increased lab productivity. This product is for in vitro diagnostic use.

  • Vacutainer® Push Button Blood Collection Sets

    BD

    Help guard against costly, potentially debilitating needlesticks, allowing caregivers to focus on superior patient care Safety - The patient needle offers split second protection from injuries and the pre-attached holder minimizes the risk of accidental needlestick injuries from the holder needle...

  • Vialok Vented Vial Access Devices

    Yukon Medical

    Vialok Vented Vial Access Devices feature a 0.2 micron filter that neutralizes vial pressure and minimizes aerosols and surface contamination. In addition to their superior vial security, they utilize a dual lumen spike, making for efficient transfers and minimizing the drug residual left in the...

  • C-Pette™ Blood Dispenser for Point of Care Test Cartridges

    Labcon

    The Labcon C-Pette™ makes delivering sample into test cards and point of care cassettes simple and efficient. Since you don't have to open the primary sample tube any risk of exposure to biohazards is reduced. And no glass capillary tubes means no potential for breakage near the patient....

  • Safety-Multifly® Winged Needles

    Sarstedt

    Safety-Multifly® winged needles are pre-assembled with a two-piece adapter for direct use with S-Monovette® blood collection tubes or assembly with vacuum system holders. The needle safety device can be activated with one hand to reduce the risk of exposure to bloodborne pathogens through...

  • Round Bottom Tubes

    Sarstedt

    3.5 mL Tube with rounded design, conical Base shape and assembled cap. Printed graduation and application line for barcode label Made from Polypropylene (PP) CE certified

  • Monoject™ Blood Collection / Infusion Sets with Multi-Sample Luer Adapter

    Covidien

    Blood collection / infusion sets with female luer attached are used for routine venipunctures and infusion applications.

  • Vacutainer® Sodium Heparin Tubes

    BD

    BD Vacutainer® Heparin Tubes are spray-coated with either lithium heparin or sodium heparin. Samples collected in these tubes are used for plasma determinations in chemistry.

  • X-Tourn™ Tourniquets

    Heathrow Scientific

    High-quality disposable tourniquets that will not rope or curl when being used, so you can rely on the performance of every one. Latex free, no rubber proteins, resins or fatty acids that can produce hypersensitive reactions. Made from supple and smooth polyisoprene Less abrasive than other brands,...

  • Blood Collection Mixer

    Boekel

    For the mobile donor centers, this Blood Collection Mixer includes a soft carry bag to pack up the unit and go. Soft Carry Case can be purchased separately for those who need to pack up the mixer for mobile bus donation. Charger allows the user to charge up to four additional batteries. Long-Life Ni...

  • PAX DNA IVD BLOOD COLLECTION TUBE

    BD

    The PAXgene® Blood DNA Tube (CE) is the first blood collection tube designed specifically for in vitro diagnostic DNA testing. It is intended to collect, anticoagulate, stabilize, transport, and store a venous whole blood sample for preparation of high quality DNA for use with molecular...

  • Blood Lancets

    For Taking Fingertip Blood Samples MEDIpoint’s Blood Lancets are carefully inspected for the utmost sharpness, uniformity, and absolute sterility. Ultra-Keen point tapers from all sides for minimum pain Made from the finest quality rigidized chrome stainless steel "Sure Grip" knurls...

  • SURFLO® Winged Needle Sets

    Terumo Medical Corporation

    Take a look at our wings versus the competition and you'll see why SURFLO® is a very well recognized brand. Terumo's soft, flexible interlocking wings readily conform to the body's contour. The wing is angled for ease of positioning of the needle during venipuncture, for less risk of vessel damage...

  • Microtainer® Quikheel™ Lancets

    BD

    Maximize blood flow while minimizing pain in heelsticks on newborns with the safetyengineered BD Microtainer® Quikheel™ Lancet. Easy, one-handed activation releases a retractable surgical blade for making a precise, consistent incision that produces sufficient blood flow to conduct PKU...

  • Vacutainer® Holders

    BD

    The BD Vacutainer® One Use Holder is compatible with the entire BD Vacutainer® Blood Collection System: BD Vacutainer® Eclipse Blood Collection Needle, BD Vacutainer® Safety-Lok™ Blood Collection Set, BD Vacutainer® Push Button Blood Collection Set and BD Vacutainer®...

  • BD Eclipse™ needle

    BD

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What are PAXgene tubes used for?

Healthcare and research professionals use PAXgene tubes in clinical and research settings for applications such as gene expression studies, genomic sequencing, and other molecular diagnostic tests. The system ensures that nucleic acids remain intact, even in long-term storage, making it ideal for preserving blood samples for future RNA or DNA analysis.

Which needles are used for blood draws?

Phlebotomists typically use hypodermic needles attached to syringes or vacuum tubes. The most common type is the 21-gauge needle, which balances patient comfort and adequate blood flow. However, 22-gauge needles are frequently used for patients with smaller veins or children, as they are slightly thinner. Phlebotomists prefer butterfly needles (winged infusion sets) for more sensitive cases, such as patients with fragile veins.

What does sodium citrate do in a EDTA tube?

Sodium citrate and EDTA are two different anticoagulants. EDTA tubes (commonly purple or lavender-topped) contain EDTA (ethylenediaminetetraacetic acid) as the sole anticoagulant, which works by binding calcium to prevent clotting. Sodium citrate, on the other hand, is found in blue-topped tubes and serves a similar function by binding calcium but is used explicitly for coagulation studies.

If sodium citrate were accidentally introduced into an EDTA tube, it could potentially interfere with the specific tests meant for that tube. Both chemicals affect calcium levels but in slightly different ways. Mixing them could lead to inaccurate results for the intended blood analysis.

Can heparin be tubed?

While heparin can be tubed for medical use, it’s vital for medical professionals to adhere to proper guidelines. This is particularly important when using heparin in tubing systems, as it helps to ensure safe and effective administration and prevents potential chemical reactions or blockages.

Do PAXgene tubes lyse cells?

Yes, PAXgene tubes lyse cells. PAXgene Blood RNA tubes contain a proprietary reagent that lyses blood cells immediately upon collection. This lysis helps stabilize the RNA by preventing degradation and preserving it for downstream molecular analysis, such as RNA extraction for gene expression studies.
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