Prepared by: G. Margaret Rourke, M.S., chief clinical chemist, and Lot B. Page, M.D., acting director, Chemical Laboratory; M. Althea King, chief technologist ...

How should I treat a patient who has signs and symptoms of hypothyroidism but normal lab values? The 36-year-old woman has mitral valve prolapse, menorrhagia, headache, fatigue, brittle nails, hair ...