Specific gravity is a measure of how concentrated urine is.

Specific gravity is a measure of how concentrated urine is.

• A. Color
• B. Concentration
• C. pH
• D. Volume

Answer: (B)

Specific gravity measures how concentrated urine is. It reflects the density of urine relative to water, driven by how many solutes—like urea, electrolytes, and other waste products—are dissolved per unit volume. When urine has more solutes per volume, its density increases and so does the specific gravity; when urine is dilute, the specific gravity falls. This is why dehydration tends to raise the value, while drinking lots of fluids or having a reduced ability to concentrate urine lowers it. Color is related to pigments and can hint at concentration but it’s not a direct measure of density. pH indicates acidity or alkalinity, not how dense the urine is, and volume tells you how much urine there is, not how concentrated it is. In adults, a typical range is roughly 1.005 to 1.030, with higher values pointing to more concentrated urine.

Specific gravity measures how concentrated urine is. It reflects the density of urine relative to water, driven by how many solutes—like urea, electrolytes, and other waste products—are dissolved per unit volume. When urine has more solutes per volume, its density increases and so does the specific gravity; when urine is dilute, the specific gravity falls. This is why dehydration tends to raise the value, while drinking lots of fluids or having a reduced ability to concentrate urine lowers it. Color is related to pigments and can hint at concentration but it’s not a direct measure of density. pH indicates acidity or alkalinity, not how dense the urine is, and volume tells you how much urine there is, not how concentrated it is. In adults, a typical range is roughly 1.005 to 1.030, with higher values pointing to more concentrated urine.