Routine laboratory and bedside tests for patients with life-threatening hemoptysis |
Type and cross-matching of a blood specimen |
Complete blood count (white blood cell count and differential, hemoglobin level, hematocrit, and platelet count) |
Prothrombin time (or International Normalized Ratio [INR]) and partial thromboplastin time |
Electrolytes, blood urea nitrogen, and creatinine |
Arterial blood gas |
Liver function tests |
Urinalysis |
Sputum Gram stain |
Sputum culture (including Mycobacterium tuberculosis, fungi, and bacteria), and cytology |
Echocardiography |
Selected laboratory testing (when select conditions are suspected) |
Toxicity screen (eg, cocaine, aspirin) |
Platelet function testing |
Brain natriuretic peptide (BNP) or N-terminal pro-BNP |
Serologic tests - ANCA, ANA, double-stranded DNA antibodies, anti-GBM antibodies, RF, anticardiolipin antibodies |
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