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J Gen Intern Med. 1988 Sep-Oct;3(5):423-8.

Quantitating bedside diagnosis: clinical evaluation of ascites.

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1
Health Services Research Field Program, Durham Veterans' Administration Medical Center, NC 27705.

Abstract

The authors prospectively evaluated the operating characteristics of the history and physical examination for ascites in a broad spectrum of hospitalized patients. The overall clinical evaluation produced a positive likelihood ratio = 37.7-83.3 when suggestive of ascites, a likelihood ratio = 2.23-3.42 when intermediate, and a negative likelihood ratio = 0.77-0.90 when not suggestive of ascites. Patients' perceptions of increased abdominal girth (positive likelihood ratio = 4.16) or recent weight gain (positive likelihood ratio = 3.20) increased the likelihood of ascites. The absence of subjective ankle swelling (negative likelihood ratio = 0.10) or increased abdominal girth (negative likelihood ratio = 0.17) decreased the likelihood of ascites. The positive likelihood ratios for a fluid wave = 9.6 and shifting dullness = 5.76 favored ascites, while the absence of bulging flanks (negative likelihood ratio = 0.12) or peripheral edema (negative likelihood ratio = 0.17) favored ascites the least. Thus, a routine history and physical examination are quantitatively useful in the clinical evaluation of ascites.

PMID:
3049966
DOI:
10.1007/bf02595917
[Indexed for MEDLINE]

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