What is a recommended method to assess hydration status?

• A. Calculate body weight change over three consecutive days
• B. Rely solely on thirst
• C. Do not monitor urine
• D. Ignore urine specific gravity

Answer: (A)

Assessing hydration status relies on tracking fluid balance over time using objective measures. Calculating body weight change over three consecutive days is the best choice because body mass reflects net fluid gain or loss, and looking at the trend over several days filters out normal daily variation to reveal true hydration changes. This method is practical, noninvasive, and sensitive to even small shifts in hydration when measurements are taken consistently (same time of day, similar conditions).

Relying solely on thirst is unreliable because thirst often appears after dehydration has already begun and may not reflect current fluid needs. Not monitoring urine removes a key indicator of hydration, since urine output and concentration respond to hydration status. Ignoring urine specific gravity eliminates a precise, quantitative measure of urine concentration that helps distinguish degrees of dehydration or overhydration. When combined with weight tracking, urine metrics provide a fuller picture of hydration status.