Maneuvers to identify the presence of Ascites:

Shifting dullness

(fluid shifts with gravity).

Fluid wave sign

(palpate or auscultate the fluid wave - ascitic wave of morgagni-).

Puddle's sign

(Patient on his/her hands and knees -dog position, all fours-, percuss the umbilical region for dullness, detects ~150mL).

See the Abdomen page.