What is the best daily measurement to indicate fluid retention in a client?

Daily weight is the most effective measurement to indicate fluid retention in a client. Monitoring weight can provide an immediate and accurate reflection of changes in body fluid levels. When a person retains fluid, their weight will increase, often quite rapidly, due to the excess fluid volume. This is especially useful in conditions such as heart failure or kidney disease, where fluid balance is critical.

Blood pressure can fluctuate for various reasons and may not provide a reliable indicator of fluid retention. While daily fluid intake and urine output measurements are important for evaluating overall fluid balance, they do not directly show the accumulation of excess fluid in the body. A daily weight assessment is a simple and practical tool that gives clear insight into a person's fluid status, making it a preferred choice in clinical practice.