A patient who takes insulin states, "My blood glucose has been low the last few mornings." Which statement would the nurse evaluate as a possible cause of this change?
1. "I have been taking a garlic supplement to prevent colds."
2. "I have been taking St. John's wort to help with my memory."
3. "I have been taking extra vitamin C since so many people have influenza."
4. "I have been taking vitamin D to help build up my bones."
1
Rationale 1: Garlic may potentiate the hypoglycemic effect of insulin.
Rationale 2: St. John's wort is not implicated in this change.
Rationale 3: Vitamin C is not implicated in this change.
Rationale 4: Vitamin D is not implicated in this change.
Global Rationale: Garlic may potentiate the hypoglycemic effect of insulin. St. John's wort, vitamin C, and vitamin D are not implicated in this change.
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