Certified Registered Nurse Infusion (CRNI) Practice Exam 2025 – All-in-One Comprehensive Guide to Exam Success!

The chosen answer, which highlights poor skin turgor and dry skin, effectively identifies a key nursing assessment indicative of isotonic dehydration in an infant. Isotonic dehydration occurs when there is a proportional loss of water and electrolytes, causing a reduction in total body fluid without a significant change in osmolarity.

In this scenario, poor skin turgor indicates that the skin does not return to its normal position after being pinched, reflecting a loss of interstitial fluid. This is a crucial sign of dehydration. Dry skin serves as a further indicator, as hydration levels in tissues decrease and the skin loses moisture. Both of these physical assessments provide valuable insight into the hydration status of the infant.

Other options do not align with the typical manifestations of isotonic dehydration. Excessive crying might occur for various reasons and is not specific enough to indicate dehydration. Rapid weight gain is contrary to the expected outcome in dehydration scenarios, as an infant losing fluids would typically experience weight loss instead. Normal elastic skin indicates that hydration levels are appropriate, making it an unlikely finding in a case of isotonic dehydration.

By understanding these signs, nursing professionals can better evaluate hydration status and respond appropriately to the needs of infants experiencing isotonic dehydration.