When planning a healthy diet with a pregnant patient, what should the nurse's first action be?
Correct Answer: B
Rationale: The correct answer is B because reviewing the patient's current dietary intake is essential to assess their nutritional status and identify areas for improvement. This step helps the nurse understand the patient's eating habits, preferences, and potential deficiencies, laying the groundwork for personalized dietary recommendations. Option A is incorrect because teaching about MyPlate is premature without understanding the patient's current diet. Option C is incorrect as blanket advice to limit fatty foods may not be suitable for all pregnant patients. Option D is incorrect as cautioning about vitamins should come after assessing the patient's current intake to avoid unnecessary restrictions.