The nurse is getting ready to give a patient a liquid medication. To ensure that the drug is administered at the desired potency, the nurse should check the expiration date.
Since liquid drugs have a tendency to become stronger or weaker over time, checking the expiration date on them can help ensure they are still at the proper potency. Giving a patient a drug that has expired could be harmful to them. Because many liquid drugs have an unpleasant odour, detecting an odour does not guarantee the potency of the prescription. A precaution to take to ensure safe administration is to return the drug if the label is unclear, however doing so has no bearing on the medication's potency.
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