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Klebsiella pneumonia - Pulmonary
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Klebsiella pneumonia - Pulmonary

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Contributors: Susan Voci MD, Sumanth Rajagopal MD, William Bonnez MD
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Synopsis

Klebsiella pneumonia is caused by Klebsiella pneumoniae, an enteric gram-negative rod. Klebsiella pneumoniae usually enters the lung via aspiration of oral secretions and can result in both community-acquired pneumonia as well as hospital-acquired pneumonia. Most cases occur in the hospital.

Middle-aged or older men are affected most frequently, and alcohol use disorder is the most common risk factor. Other patients at risk include diabetics, those with a malignancy, the elderly in nursing homes, debilitated patients receiving antibiotics, and those with chronic cardiopulmonary disease and renal disease.

The onset of symptoms is sudden with pleuritic chest pain, chills, prostration, moderate fever, dyspnea, and productive cough. The sputum can be thick and bloody, greenish, and also have a "currant jelly" appearance. The white blood cell count is usually elevated, but neutropenia appears to be frequent in those with cirrhosis and Klebsiella infection. Bacteremia can occur in up to 25% of cases. Complications can include lung abscesses, pericarditis, empyema, and meningitis.

Codes

ICD10CM:
J15.0 – Pneumonia due to Klebsiella pneumoniae

SNOMEDCT:
64479007 – Pneumonia due to Klebsiella pneumoniae

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Last Updated: 06/08/2018
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Klebsiella pneumonia - Pulmonary
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Klebsiella pneumonia : Chills, Fever, Pleuritic chest pain, Productive cough, Dyspnea
Imaging Studies image of Klebsiella pneumonia
Frontal chest xray with homogeneous parenchymal consolidation of the right upper lobe, (short arrow).  There is downward displacement of the fissure related to lobar expansion, (long arrow), as seen with Klebsiella pneumonia.
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