Final answer:
In a laboratory setting, tubes with an anticoagulant additive should be mixed at least three times to ensure proper distribution of the additive. Proper mixing helps to ensure accurate and consistent results in experiments or tests involving the anticoagulant mixture.
Step-by-step explanation:
In a laboratory setting, tubes with an anticoagulant additive should be mixed at least three times to ensure proper distribution of the additive.
For example, when adding an anticoagulant to blood, the tube should be mixed gently three times to evenly distribute the anticoagulant and prevent the blood from clotting.
Proper mixing helps to ensure accurate and consistent results in experiments or tests involving the anticoagulant mixture.