Summary: For patients with dyspnea, evidence from a small clinical trial suggests that examination with a stethoscope may be just as effective as point-of-care ultrasound for excluding the diagnosis of heart failure, and for making an affirmative diagnosis of pneumonia, at markedy lower cost.

http://www.ncbi.nlm.nih.gov/m/pubmed/25715019/

Strength of Recommendation = B

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