Medicine:Puddle sign
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Puddle sign | |
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Differential diagnosis | ascites |
In gastroenterology, the puddle sign is a physical examination maneuver that can be used to detect the presence of ascites. It is useful for detecting small amounts of ascites—as small as 120 mL; shifting dullness and bulging flanks typically require 500 mL.[1]
The steps are outlined as follows:[2]
- Patient lies prone for 5 minutes
- Patient then rises onto elbows and knees
- Apply stethoscope diaphragm to most dependent part of the abdomen
- Examiner repeatedly flicks near flank with finger. Continue to flick at same spot on abdomen
- Move stethoscope across abdomen away from examiner
- Sound loudness increases at farther edge of puddle
- Sound transmission does not change when patient sits
In relation to auscultatory percussion, the puddle sign is more specific, but less sensitive.[3]
See also
- Abdominal examination
- Fluid wave test
- Bulging flanks
References
- ↑ Shah R. Ascites. eMedicine.com. URL: http://www.emedicine.com/med/topic173.htm. Accessed on: September 17, 2007.
- ↑ FamilyPracticeNotebook.com URL: http://www.fpnotebook.com/GI41.htm . Accessed on: March 14, 2008.
- ↑ "A simple bedside manoeuvre to detect ascites". The National Medical Journal of India 10 (1): 13–4. 1997. PMID 9069699.
External links
- Gill, Christopher J.; Sabin, Lora; Schmid, Christopher H. (2005). "Why clinicians are natural bayesians". BMJ 330 (7499): 1080–1083. doi:10.1136/bmj.330.7499.1080. PMID 15879401.
![]() | Original source: https://en.wikipedia.org/wiki/Puddle sign.
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