Question

"If samples for more than one tube must be drawn during a venipuncture, which order is adherent to CLSI standards?"

a. Red, lavender, then light blue
b. Yellow, red, then green
c. Gray, red, then lavender
d. Light blue, green, then red

Answer 1

The order adherent to CLSI standards for drawing samples from multiple tubes during venipuncture is light blue, green, then red.

Step-by-step explanation:

The order adherent to CLSI (Clinical and Laboratory Standards Institute) standards for drawing samples from multiple tubes during venipuncture is d. Light blue, green, then red. This order ensures that the correct additives are not contaminated by the previous tubes. The light blue tube contains sodium citrate, which is used for coagulation studies. The green tube contains lithium heparin, which is used for plasma testing. The red tube does not contain any additives and is used for general chemistry tests.