Description
Blood Collection Tube – 100x4ml Purple
Blood Collection Plastic Serum Tubes are ideal for clean and reliable blood sample collection in livestock, especially for diagnostic and pregnancy testing. These 4ml purple-top tubes are commonly used with IDEXX Pregnancy Testing Kits to deliver high-quality serum samples suitable for lab analysis.
Why use these serum tubes?
- 4ml capacity – suitable for single sample draws
- Purple cap with no additives (not to be confused with EDTA tubes)
- Designed for serum separation and diagnostic lab testing
- Durable plastic construction with leak-resistant seal
- Compatible with standard blood collection needles and holders
- Ideal for on-farm and clinic-based cattle testing
How are they used?
These serum tubes are typically used alongside IV Catheters (16G x 2″) or vacutainer needles. Once collected, the sample should be allowed to clot, then centrifuged to separate the serum before submission to a laboratory.
Note: These tubes contain no anticoagulant and are for serum collection only.






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