Choosing a blood collection tube that maintains sample integrity is crucial for researchers examining the plasma proteome.

By preserving and inhibiting the blood's programmed cell death (apoptosis), the cf-DNA/cf-RNA Preservative Tubes stop intracellular DNA/RNA from escaping into plasma. Samples of whole blood can be ...

Copley, A. L., Rheol. Acta (in the press). Schofield, R. K., and Scott Blair, G. W., J. Phys. Chem., 34, 248 (1930).

The ureters are tubes that carry urine from the kidneys ... as the body needs to maintain a constant water level in the blood plasma as many ions as the body needs to maintain a constant balance ...

The ureters are tubes that carry urine from the kidneys ... its functions of regulating the water and ion balance of the blood plasma, as well as keeping the level of urea low.

For thousands of Americans, donating plasma is a lifeline. In the 90 minutes it takes to donate, they make five times the federal minimum wage. Americans supply two-thirds of the world's blood plasma.