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The medical history includes obtaining the symptoms of pulmonary TB: productive, prolonged cough of three or more weeks, chest pain, and hemoptysis.Systemic symptoms include low grade remittent fever, chills, night sweats, appetite loss, weight loss, easy fatiguability, and production of sputum that starts out mucoid but changes to purulent. [1]
A nasopharyngeal swab is a device used for collecting a sample of nasal secretions from the back of the nose and throat. [1] [2] The sample is then analyzed for the presence of organisms or other clinical markers for disease.
Blood-streaked sputum –an indicator of possible inflammation of the throat (larynx and/or trachea) or bronchi; lung cancer; other bleeding erosions, ulcers, or tumors of the lower airway. Pink sputum – it indicates sputum evenly mixed with blood from alveoli and/or small peripheral bronchi as is seen in potential pulmonary edema.
A sputum culture is a test to detect and identify bacteria [1] or fungi that infect the lungs or breathing passages. Sputum is a thick fluid produced in the lungs and in the adjacent airways. Normally, fresh morning sample is preferred for the bacteriological examination of sputum. [ 2 ]
Bronchoalveolar lavage (BAL), also known as bronchoalveolar washing, is a diagnostic method of the lower respiratory system in which a bronchoscope is passed through the mouth or nose into an appropriate airway in the lungs, with a measured amount of fluid introduced and then collected for examination.
In a clinical study conducted the sensitivity of the MTB/RIF test on just 1 sputum sample was 92.2% for culture-positive TB; 98.2% for smear+ and culture-positive cases; and 72.5% for smear-negative, culture-positive cases, with a specificity of 99.2%. Sensitivity and higher specificity were slightly higher when 3 samples were tested. [10]
Toggle (87–99) Miscellaneous diagnostic and therapeutic procedures subsection 18.1 Diagnostic radiology 18.2 Interview, evaluation, consultation, and examination
Pleural empyema is a collection of pus in the pleural cavity caused by microorganisms, usually bacteria. [1] Often it happens in the context of a pneumonia , injury, or chest surgery. [ 1 ] It is one of the various kinds of pleural effusion .