How does dehydration affect glucose concentration readings and management?

How does dehydration affect glucose concentration readings and management?

• A. Dehydration concentrates glucose leading to higher readings; rehydration helps
• B. Dehydration lowers glucose readings
• C. Dehydration has no effect on readings
• D. Dehydration causes random readings unrelated to actual glucose

Answer: (A)

Dehydration concentrates the liquid part of the blood, so dissolved substances like glucose become more concentrated. That means glucose readings can appear higher when someone is dehydrated than they would once they’re properly hydrated. Rehydrating restores plasma volume and lowers the concentration toward the true level, which helps guide appropriate treatment. So, when dehydration is present and glucose looks elevated, the priority is rehydration and correcting fluid/electrolyte balance, then recheck glucose and adjust therapy based on the hydrated state rather than the dehydration-induced reading.

Dehydration concentrates the liquid part of the blood, so dissolved substances like glucose become more concentrated. That means glucose readings can appear higher when someone is dehydrated than they would once they’re properly hydrated. Rehydrating restores plasma volume and lowers the concentration toward the true level, which helps guide appropriate treatment.

So, when dehydration is present and glucose looks elevated, the priority is rehydration and correcting fluid/electrolyte balance, then recheck glucose and adjust therapy based on the hydrated state rather than the dehydration-induced reading.