PERSISTENT FEVER If you have a normal immune system and you are not undergoing treatment, such as chemotherapy for cancer, a persistent low-grade fever - over 100.4 F - should be checked if it lasts for a week or more. If you have a fever with chills, or a high fever - greater than 103 F - see your doctor as soon as possible. Persistent fever can signal hidden infections, which could be anything from a urinary tract infection to tuberculosis. At other times, malignant conditions - such as lymphomas - cause prolonged or persistent fevers, as can some medications and conditions, and reactions to certain drugs. Fever is common with treatable infections, such as urinary tract infections. But if a low-grade fever persists for more than two weeks, check with your doctor. SHORTNESS OF BREATH: Shortness of breath (dyspnea) is a worrisome symptom and has many acute and chronic causes. Follow this chart for more information about the diseases and conditions in which shortness of breath occurs.   Departments Brain & Spine Center KG Heart Center Joint Replacement Center Kidney Center KG Eye Hospital Advanced Laparoscopic Center © Copyright K.G. Hospital - 2003. All Rights Reserved. Site Map | Terms | Privacy | Top