Which Scenario Best Illustrates the Use of Data Validation When

Which scenario best illustrates the use of data validation when making an independent nursing clinical decision?

A) The nurse determines that she needs to remove a wound dressing when the patient reveals the time of the last dressing change, and she notices that the present dressing is saturated with fresh and old blood.
B) The nurse administers pain medicine due at 1700 at 1600 because the patient complains of increased pain.
C) The nurse removes a leg cast when the patient complains of decreased mobility.
D) The nurse administers potassium when a patient complains of leg cramps.

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