Pulmonary tuberculosis

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Common-

This is an infection of the lungs caused by the bacterium Mycobacterium tuberculosis.

It is highly contagious and is spread by coughing or sneezing from an infected person.

In most cases, the infection clears up on its own without many symptoms. However, a latent infection can occur that reactivates years later, causing symptoms such as shortness of breath, coughing up mucus or blood, tiredness and fever.

In addition to the patient's medical history, an X-ray, chest CT-scan, sputum culture or tuberculin skin test can help diagnose the disease.

Tuberculosis is treated with specific antibiotics against the bacteria.

It is important to see a doctor so that your case can be assessed and to avoid infecting others. It is usually treated at home, or you may be admitted to hospital if you cough up blood or have difficulty breathing.

Bibliographic references
  1. Anton Pozniak. Clinical manifestations and complications of pulmonary tuberculosis. UpToDate. Jan 12, 2016.
  2. Kimon C Zachary. Tuberculosis transmission and control. UpToDate. Sep 28, 2016.
  3. Kethireddy S, Light RB, Mirzanejad Y, et al. Mycobacterium tuberculosis septic shock. Chest 2013; 144:474.
  4. Young KH, Ehman M, Reves R, et al. Tuberculosis Contact Investigations--United States, 2003-2012. MMWR Morb Mortal Wkly Rep 2016; 64:1369.
  5. O'Shea MK, Koh GC, Munang M, et al. Time-to-detection in culture predicts risk of Mycobacterium tuberculosis transmission: a cohort study. Clin Infect Dis 2014; 59:177.
  6. Dorman SE, Belknap R, Graviss EA, et al. Interferon-γ release assays and tuberculin skin testing for diagnosis of latent tuberculosis infection in healthcare workers in the United States. Am J Respir Crit Care Med 2014; 189:77.
  7. García San Miguel J. Agustí-Vidal A. Tuberculosis. Farreras Rozman. Medicina Interna. Volumen 2. 12º edición: 2297-2305.
Author
Dr. Sara Vitoria
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© TeckelMedical 2026

Symptoms

    Night sweats


    Short of breath


    Coughing up blood


    Cough


    Weight loss over the last 4-8 weeks

Symptoms to watch out for

High fever (39 ºC or more)
A feeling of shortness of breath
Difficulty breathing
History of immunodeficiency (HIV, diabetes mellitus, oncological disorders, long-term corticosteroid consumption).
If it is accompanied by seizures
Neck stiffness

Self-care

Isolate the person at home for 3 weeks since the beginning of the symptoms.
Air out closed spaces.
Use a N95 triple-layer mask.
Maintain a balanced diet: increase fruit, vegetable, and white meat consumption and reduce the intake of fatty meals and fritters.
Relative rest, rest until symptoms subside.
Maintain hydration of 2 litres per day.
Check with your general practitioner for antituberculosis medication prescription.