MPT64 patch test for the diagnosis of active pulmonary tuberculosis: a randomised controlled trial in Peru.

Setting: There remains a lack of effective and inexpensive diagnostic tools for active tuberculosis (TB) disease. Testing immune responses to proteins secreted by Mycobacterium tuberculosis, such as MPT64, may be a diagnostic option.

Objective: To evaluate the sensitivity and specificity of a patch test using MPT64 for the diagnosis of active TB disease.

A new pendant oxygen-conserving cannula which allows pursed lips breathing.

Multiple benefits of oxygen therapy for hypoxemic patients with chronic lung disease are well established. Steady flow oxygen therapy is inefficient, wasteful and has a high cost. The Oxymizer pendant improves efficiency of oxygen delivery compared with SF.