SN instructed patient regarding medication Furosemide. SN informed patient that Furosemide is used to treat fluid retention and high blood pressure and it causes increased urination. SN instructed patient to watch out for side effects of this medication such as headache, dizziness, blurred vision, constipation, diarrhea, and numbness / burning / tingly feeling and to notify physician ( MD ) if experiencing these side effects persistently. SN informed that Lasix may deplete potassium in the body, thus needing potassium supplement or increased potassium intake ( oranges, bananas ). SN instructed patient / caregiver to report to physician ( MD ) if patient experiences vomiting, fast / uneven heartbeat, lightheadedness or increased weakness, muscle pains, or urinating less or not at all.