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- $Unique_ID{BRK01095}
- $Pretitle{}
- $Title{Isn't a Chest X-ray Necessary in a Tuberculosis Examination?}
- $Subject{positive tuberculosis examination examinations chest x-ray Special
- Procedures procedure infection infections respiratory lungs antituberculosis
- prophylactic therapy therapies bacteria bacterium bacterial}
- $Volume{P-5,A-5}
- $Log{}
-
- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
-
-
- Isn't a Chest X-ray Necessary in a Tuberculosis Examination?
-
-
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-
- QUESTION: During a recent screening I had a tuberculosis skin test which
- showed positive. After a more thorough examination, during which I was found
- to be in pretty good health, my doctor decided to put me on regular
- medication, but then decided that a chest x-ray was unnecessary. This doesn't
- make a lot of sense to me, does it to you?
-
- ------------------------------------------------------------------------------
-
- ANSWER: It took a bit of reflection and some reading, but I think I can make
- a case for your doctor's position, and explain a few things to you while I am
- at it. To make it all come out right I am going to assume that you are under
- the age of 35, which seems likely from the rest of your letter. The purpose
- of the skin test screening for tuberculosis is to find people who might obtain
- some benefit from a course of therapy with an antituberculosis medication
- which will prevent the disease from progressing beyond its first stages or, in
- fact, ever developing at all. Screening tests merely reveal that the patient
- has been exposed to the disease and has generated antibodies to the bacteria.
- The type of therapy recommended by your physician is called "prophylactic
- therapy" and is used to prevent the bacteria from ever gaining a foothold in
- your body. Tuberculosis develops slowly, and wiping out the bacteria with
- proper medications prevents damage to the lungs and other organs.
- Prophylactic therapy with isoniazid is very effective, and presents little
- risks for the young patient. Since you fit the picture of a young patient in
- apparent good health with a positive screening test, the decision to prescribe
- prophylactic therapy to you was already made, and the results of a chest x-ray
- probably would not alter that conclusion. While the American Thoracic Society
- does recommend a chest x-ray in cases such as yours, recent investigations
- have shown that x-rays rarely show findings that reveal active disease, and
- may be of little help in caring for the patient. In these days when medical
- costs are constantly under review, your physician may be practicing in a
- system where costs are kept low by avoiding tests that are of questionable
- value. For sure, your therapy is correct; the question of a chest x-ray is
- one that may be debated.
-
- ----------------
-
- 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.
-
-