What hydration finding indicates the patient needs fluids?

What hydration finding indicates the patient needs fluids?

• A. Turgor within 1 sec
• B. Cap refill time under 2 seconds
• C. Greater than 2 seconds
• D. No delay

Answer: (C)

Understanding hydration quickly comes down to perfusion tests. Capillary refill is a simple bedside check of peripheral blood flow. When a person is dehydrated, the circulating volume drops and perfusion slows, so it takes longer for color to return to the nail bed after blanching. A capillary refill time longer than two seconds is a clear sign that tissues aren’t being perfused promptly, which points to dehydration and the need for fluids. In contrast, a capillary refill under two seconds and skin that returns to normal color quickly (turgor that recovers promptly, often within about a second) indicate adequate hydration and perfusion. No delay would likewise suggest normal perfusion. So, the finding that best indicates the patient needs fluids is a capillary refill time greater than two seconds.

Understanding hydration quickly comes down to perfusion tests. Capillary refill is a simple bedside check of peripheral blood flow. When a person is dehydrated, the circulating volume drops and perfusion slows, so it takes longer for color to return to the nail bed after blanching. A capillary refill time longer than two seconds is a clear sign that tissues aren’t being perfused promptly, which points to dehydration and the need for fluids.

In contrast, a capillary refill under two seconds and skin that returns to normal color quickly (turgor that recovers promptly, often within about a second) indicate adequate hydration and perfusion. No delay would likewise suggest normal perfusion. So, the finding that best indicates the patient needs fluids is a capillary refill time greater than two seconds.