Ace the Washington MPJE 2026 – Your Ticket to Pharmacy Law Mastery!

OTC (over-the-counter) labels must include a warning for kidney stone disease when the electrolyte levels of potassium (K), magnesium (Mg), and calcium (Ca) are present. Option A (K, Mg) is incorrect because it is missing the calcium (Ca) component. Option B (Na, K, Mg) is also incorrect because although it includes all three electrolytes, it is missing the calcium (Ca) component. Option D (Na, K, Ca) is incorrect because it is missing the magnesium (Mg) component. Therefore, option C (K, Mg, Ca) is the correct answer.