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- $Unique_ID{BRK01646}
- $Pretitle{}
- $Title{Information About "FUO"}
- $Subject{fever unknown origin cause FUO Ill Defined Symptoms Symptom blood
- temperature fevers CT scans scan temperatures infection tuberculosis gonorrhea
- appendicitis abscessed teeth fungus sinusitis virus viruses tumors lupus
- rheumatic rheumatoid arthritis thyroid elderly travelers immigrants
- homosexuals surgery AIDS cancer cancers chemotherapy temperature infections
- abscesses fungi fungal viral tumor immigrant homosexual abscess}
- $Volume{N-7}
- $Log{}
-
- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
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- Information About "FUO"
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- QUESTION: After many doctor visits, and a huge expense, I am still at a loss
- for an explanation of my condition. My persistent fevers have been given the
- name of "FUO", which doesn't tell me too much. Do you have any information
- about this disorder that you can share with me? I certainly can use all the
- help I can get.
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-
- ANSWER: Though I may not be able to provide you with specific information
- about your situation, I am happy to offer you this general discussion of your
- problem. "FUO" stands for "Fever of Unknown Origin". In this age of superb
- diagnostic abilities on the part of physicians and relatively new aids to
- diagnosis--such as CT scans and the like--there are fewer fevers for which the
- cause cannot be determined. Yet, some FUOs occur. They can be of real
- concern especially in older patients, the poorly nourished and in those whose
- bodies have decreased natural abilities to fight disease.
- FUOs are fevers that last for several weeks and for which patients and
- their doctors can find no cause. Medically, before a patient is diagnosed as
- suffering from FUO, three points must exist: (1) fever must have lasted for
- one to three weeks; (2) body temperature must have been greater than 101 F on
- several occasions; and (3) diagnosis of the cause of the fever has not been
- possible after one week.
- Normal human body temperature ranges from 96.8 to 100.4 F; the lowest
- daily temperatures usually occur in the early morning upon awakening, while
- the highest are found in the late afternoon or early evening, and following
- exercise. Persons whose usual body temperature is at the upper end of the
- range and in whom temperatures are taken late in the afternoon may appear to
- have a low fever when, for them, it is really normal.
- Yet, when a fever for which no cause can be found persists for several
- weeks, the sufferer and his/her doctors often become quite anxious.
- Through careful diagnostic procedures, many and possibly most FUOs
- prove to be caused by some sort of infection (possibly tuberculosis,
- gonorrhea, appendicitis, abscessed teeth, fungus, or sinusitis to name but a
- few), certain virus-caused illnesses, tumors, connective tissue diseases
- (partial list includes: lupus, rheumatic fever, and rheumatoid arthritis),
- endocrine diseases (certain thyroid malfunctions among them), alcohol, drugs
- (both those prescribed to treat other conditions and those that are illegal),
- and/or psychological conditions.
- Among people most prone to FUOs are: the elderly, travelers, recent
- immigrants, homosexuals, patients who have undergone surgery recently, those
- at risk for AIDS, and those whose bodies cannot fight disease in a normal way
- because of illness or treatment (such as cancer and chemotherapy).
- Nevertheless, whatever the reasons, prolonged fevers are serious and are
- cause for concern. Young patients who are otherwise healthy, but with fevers
- slightly above his/her normal range that continue for sometime for no known
- reason even after a full series of diagnostic tests, usually do relatively
- well in spite of their FUOs. Some of their fevers disappear in time; in
- others, fevers continue intermittently without developing into a serious
- disease.
-
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-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
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-