Final answer:
To clean the tops of blood collection tubes, use laboratory disinfectant, such as 70% ethanol, and sterile swabs or wood applicator sticks. Proper sterilization protocols and disposal of contaminated waste are also important.
Step-by-step explanation:
To clean the tops of blood collection tubes, it is recommended to use laboratory disinfectant, such as 70% ethanol, and sterile swabs or sterile wood applicator sticks. These tools and solutions can effectively remove any contaminants or residues from the tops of the tubes, ensuring a clean and sterile surface for further use. It is important to follow proper sterilization protocols and dispose of any contaminated waste appropriately.