The nurse teaches elderly citizens at a senior citizen center about the effectiveness of vitamin C in preventing the common cold. The nurse evaluates that learning has occurred when the elderly citizens make which statement?
1. "Vitamin C, in the form of orange juice, is the most effective aid in preventing the common cold."
2. "There is no proof that vitamin C prevents the common cold."
3. "Vitamin C is only effective in preventing the common cold if 2 grams/day are taken."
4. "Vitamin C must be taken prior to the onset of the cold to be most effective."
Correct Answer: 2
Rationale 1: There is no clinical evidence to support that orange juice is the most effective form of vitamin C in preventing the common cold.
Rationale 2: The ability of vitamin C to prevent the common cold has not been definitely proved.
Rationale 3: The efficacy of vitamin C against the common cold has not been proven.
Rationale 4: There is no evidence to support that vitamin C must be taken before a cold in order to be effective.
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