Brenda was assigned to take liquid vitamins A, D, and E, and mix them with liquid antibiotics and heart medications that a patient was prescribed. She was very careful to prevent contamination in the mixture and also spent extra time making sure none of the materials were in concentrations that would interact. Which duty is Brenda most likely performing?

Brenda is mixing several prescribed liquid medications into one preparation and taking care to prevent contamination. Checking that the ingredients and concentrations are safe is also part of preparing a compounded medication. This duty is compounding and sterile work, not stocking crash carts or managing inventory.

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