Blood sample tubes. These are S-Monovette sample tubes that combine a tube and a syringe. A needle can be attached to the coloured lids to draw a bloo

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Blood sample tubes. These are S-Monovette sample tubes that combine a tube and a syringe. A needle can be attached to the coloured lids to draw a blood sample. The lids are colour-coded according to different haematological tests. Green, for example, is a sodium citrate test for coagulation, white is for all serology and immunology tests, and orange is for trace metal analysis.

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Size: 3136px × 4812px
Photo credit: © LEWIS HOUGHTON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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