Urine-specific gravity measures which of the following?

Urine-specific gravity measures which of the following?

• A. The color of urine
• B. A measure of dissolved solutes in a solution
• C. The volume of urine
• D. The pH of urine

Answer: (B)

Urine-specific gravity tells you how concentrated urine is by comparing its density to that of pure water. It reflects the total amount of dissolved solutes in the urine—things like urea, electrolytes, glucose, and other waste products. When you’re dehydrated or the kidneys are concentrating urine well, the specific gravity rises (higher density). When urine is dilute, the specific gravity falls (lower density). It’s not about color (a visual property), volume (how much urine is produced), or pH (acidity/alkalinity).

Urine-specific gravity tells you how concentrated urine is by comparing its density to that of pure water. It reflects the total amount of dissolved solutes in the urine—things like urea, electrolytes, glucose, and other waste products. When you’re dehydrated or the kidneys are concentrating urine well, the specific gravity rises (higher density). When urine is dilute, the specific gravity falls (lower density). It’s not about color (a visual property), volume (how much urine is produced), or pH (acidity/alkalinity).