Pulmonary edema laboratory tests: Difference between revisions
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==Laboratory Findings== | ==Laboratory Findings== | ||
Laboratory findings consistent with the diagnosis of pulmonary edema include | |||
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|+ Differentiation of cardiogenic pulmonary edema and noncardiogenic pulmonary edema | |+ Differentiation of cardiogenic pulmonary edema and noncardiogenic pulmonary edema | ||
Revision as of 14:04, 23 February 2018
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Farnaz Khalighinejad, MD [2]
Overview
Laboratory Findings
Laboratory findings consistent with the diagnosis of pulmonary edema include
| Laboratory findings | ECG | CXR | Cardiac enzymes | PCWP | QS/QT | Edema fluid/serum protein |
|---|---|---|---|---|---|---|
| Cardiogenic pulmonary edema | Ischemia/Infarct | Peri-hilar distribution | May be elevated | >18 mmHg | Small elevated | <.5 |
| Noncardiogenic pulmonary edema | Usually normal | Peripheral distributions | Usually normal | <18 mmHg | Large elevated | <.7 |
Brain Natriuretic Peptide
B-type natriuretic peptide (BNP) is elevated in the patient with cardiogenic pulmonary edema. A low BNP (<100 pg/ml) makes a cardiac cause very unlikely and is associated with non-cardiogenic pulmonary edema.
Oxygen Saturation
Low oxygen saturation or hypoxia may be present on arterial blood gas readings.
References