Hemoptysis laboratory findings: Difference between revisions
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==Laboratory Findings== | ==Laboratory Findings== | ||
* There are laboratory tests that are helpful for diagnosis the underlying cause of hemoptysis. | * There are [[Medical laboratory|laboratory]] tests that are helpful for [[diagnosis]] the underlying cause of hemoptysis. | ||
** Sputum analysis provides valuable information about the cause of hemoptysis. Sputum must be evaluated for the followings: | ** [[Sputum|Sputum analysis]] provides valuable information about the cause of hemoptysis. [[Sputum]] must be evaluated for the followings: | ||
*** [[Cytology]] | *** [[Cytology]] | ||
*** [[Gram stain]] | *** [[Gram stain]] | ||
Revision as of 20:47, 26 February 2018
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2]
Overview
Laboratory Findings
- There are laboratory tests that are helpful for diagnosis the underlying cause of hemoptysis.
- Sputum analysis provides valuable information about the cause of hemoptysis. Sputum must be evaluated for the followings:
- Laboratory tests that might be abnormal in a patient with hemoptysis:
- Arterial blood gases might show:
- Hypoxia (normal PaO2 )
- Blood urea nitrogen might be elevated (normal BUN 8 to 20 mg/dL)
- Creatinine might be elevated (normal Cr 0.5 to 1.0 mg/dL for women and 0.7 to 1.2 mg/dL for men)
- Complete blood count (CBC) might show:
- Coagulation studies might show:
- Elevated prothrombin time (normal PT )
- Elevated partial thromboplastin time (normal PTT )
- Urinalysis might show:
- Hematuria (normal RBC in urine <5)
- Electrolytes
- Elevated potassium (normal K )
- Arterial blood gases might show: