Explain each: Why observe the following when doing ETS blood collection? a. Expiry date of blood collection tube b. Proper assembly of adapter, needle, and collection tubes Cleaning of puncture site...

Explain each:

1. Why observe the following when doing ETS blood collection?

a. Expiry date of blood collection tube

b. Proper assembly of adapter, needle, and collection tubes

Cleaning of puncture site in an inward to outward circular motion

c. Puncture site after antiseptic has air dried

d. Mixing blood and no pre-labelling of collection tubes

e. Removal of tourniquet prior to needle drawing from vein

f. Applying pressure to the site after blood collection