If an employee at a hospital has a Positive PPD and has an initial negative Chest xray, how often should a chest x-ray be repeated? The employees do a Respiratory Symtom Review annually. If they have no new symptoms, how often is a x ray recommended. Should they have a repeat xray at sometime if they never report symptoms related to TB?
If the person has no new respiratory symptoms or worsening of pre-existing respiratory symptoms, the x-ray need not be repeated. If the positive test is know to be a recent conversion and the decision is made not to proceed with prophylactic therapy, it would be wise to repeat the x-ray, symptoms or not, at one year.
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