A 40-year-old woman tested positive for purified protein derivative (PPD) six years ago. A chest x-ray at the time was negative. After completing the required course of isoniazid (INH), she has had ...

At what point should a patient have repeat chest x-ray after reporting a prior (10 years ago) positive purified protein derivative (PPD) result with subsequent isoniazid therapy? The patient reports ...

This is a difficult question with no good answer. Any advice on this case would also depend on details that are not available, such as: Was there an attempt in the past to treat this patient with INH?

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The World Health Organization (WHO) recently updated its consolidated guidelines on tuberculosis (TB) and undernutrition. Central to this paradigm shift is the pioneering research conducted by Dr ...