Assessment of a client reveals a distended abdomen with some bulging of the flanks. Which test would be most accurate in confirming nurse's suspicions?

A. Abdominal x-ray: While it can show gas or bowel obstructions, it is less effective for confirming fluid presence.B. Shifting dullness: This physical exam technique can indicate fluid but is less accurate than ultrasound.C. Fluid wave: This physical exam can help suggest the presence of fluid, but it is also less reliable than imaging studies.D. Ultrasound: An ultrasound is the most accurate and non-invasive way to confirm the presence of fluid, such as ascites, in the abdomen. It provides detailed imaging and confirmation without invasive procedures.