Which of the following is a step of the sanitization process?

A. Add thixotropic gel to the tube after venipuncture: Thixotropic gel is used in specific tubes for separating serum or plasma from blood cells and should be added during the manufacturing process, not after venipuncture.
B. Place the tubes in the centrifuge to chill after venipuncture to separate blood cells: Tubes should not be chilled before centrifugation unless specified by the test requirements. Most tubes are centrifuged at room temperature.
C. Invert additive tubes multiple times after filling the tube: Inverting additive tubes multiple times ensures proper mixing of the additive with the blood, which is crucial for accurate test results.
D. Mix the anticoagulant in the tube after filling the tube: The anticoagulant should be mixed by inverting the tube immediately after filling it, not after the fact.
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A. The total amount of payments received matches the day's deposit.: To ensure the day's receipts are balanced, the total amount of payments collected should match the total amount deposited into the bank.
B. All transactions have been written on the day sheet. While documenting transactions on the day sheet is important, it alone does not confirm if the receipts are balanced without verifying the total amounts.
C. The check register has been verified. The check register should be verified as part of the process, but it alone does not confirm if the receipts are balanced without matching the deposit total.
D. The ledger cards have been zeroed out. Zeroing out ledger cards is part of account management but does not specifically confirm if the day's receipts match the deposit.