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What is smear-positive pulmonary tuberculosis?

What is smear-positive pulmonary tuberculosis?

For the. purpose of the review, a sputum smear-positive case was defined as a positive result in at least. one of the three specimens. If the first specimen was positive, then the results of the subsequent. two specimens were irrelevant (positive XX) and if the first specimen was negative and the.

What does a chest xray show if you have TB?

Tuberculosis is an infectious disease that causes inflammation, the formation of tubercles and other growths within tissue, and can cause tissue death. These chest x-rays show advanced pulmonary tuberculosis. There are multiple light areas (opacities) of varying size that run together (coalesce).

How do you identify a sputum positive case in TB?

The definition of a new sputum smear-positive pulmonary TB case is based on the presence of at least one acid fast bacillus (AFB+) in at least one sputum sample in countries with a well functioning EQA system.

Are AFB positive pulmonary TB patients?

Acid-fast bacilli (AFB) smear-positive sputum is usually an initial clue in the diagnosis of pulmonary tuberculosis (TB); however, the test is not disease-specific.

What is the meaning of smear positive?

A normal result for an acid-fast bacteria smear is negative, meaning no bacteria were found in the sputum sample. A positive result means that bacteria were found and that you may have an infection. The smear is treated with a special acid-fast stain that can provide a preliminary test result in 24 hours.

What happens if sputum AFB is positive?

If your AFB smear was positive, it means you probably have TB or other infection, but an AFB culture is needed confirm the diagnosis. Culture results can take several weeks, so your provider may decide to treat your infection in the meantime.

Can TB be misdiagnosed?

Diseases, most often initially misdiagnosed as tuberculosis, were pneumonia (52 %), lung cancer (20 %). 2. The period from the disease manifestation up to establishment of final diagnosis was 84 ± 72.8 (mean±SD) days.

Is pulmonary tuberculosis curable?

Pulmonary TB is curable with treatment, but if left untreated or not fully treated, the disease often causes life-threatening concerns. Untreated pulmonary TB disease can lead to long-term damage to these parts of the body: lungs.

What happens if AFB is positive?

Is AFB positive contagious?

A positive AFB culture several weeks after medicine treatment has started may mean the antibiotic is not working and needs to be changed. It also means you are still likely to be infectious and can pass the infection to others through coughing or sneezing.

What does positive AFB smear mean?