Edema is best described as?

• A. Dehydration.
• B. Inflammation of joints.
• C. Accumulation of an excessive amount of watery fluids in cells or tissues.
• D. Bleeding under the skin.

Answer: (C)

Edema describes a fluid balance problem where too much watery fluid collects in the interstitial spaces of tissues, leading to swelling. This happens when fluid shifts from the vessels into the tissue due to factors like higher capillary pressure, lower blood protein (oncotic) pressure, impaired lymph drainage, or overall fluid retention. In patient care, you’d notice swelling in areas like the feet or legs, and you might test for pitting edema by pressing the skin to see if a dent remains. Monitoring involves tracking dependent edema, measuring limb size or girth, and watching daily weights and intake/output.

This concept is distinct from dehydration, which is a low body fluid state; from inflammation of a joint, which is a local inflammatory process; and from bleeding under the skin, which presents as bruising.