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Pulmonology / Respiratory

Nocardia Pulmonary Infection

ICD-10 Code
A43.0

Clinical Criteria for Nocardia Pulmonary Infection.

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with subacute to chronic respiratory symptoms including productive cough, dyspnea, and pleuritic chest pain. History significant for [immunocompromised state/corticosteroid use/underlying lung disease]. Reported constitutional symptoms include low-grade fevers, night sweats, and unintentional weight loss. No reported hemoptysis or recent travel to endemic areas.

Clinical Examination Findings

Vitals: Febrile or afebrile, tachypneic. Pulmonary: Auscultation reveals localized crackles, bronchial breath sounds, or signs of consolidation. Possible pleural friction rub. Skin: Inspection for subcutaneous nodules, abscesses, or indurated plaques suggesting disseminated Nocardiosis. Neurological: Assessment for focal deficits to rule out CNS involvement.

Treatment Protocol

Initiate empiric antibiotic therapy with high-dose Trimethoprim-Sulfamethoxazole (TMP-SMX). Consider combination therapy with Imipenem or Amikacin for severe or disseminated disease. Duration of therapy is prolonged, typically 6-12 months, guided by clinical response and imaging. Surgical consultation for drainage of empyema or large abscesses.

Detailed clinical guide coming soon.