What does Inactivity - Third Spacing refer to?

What does Inactivity - Third Spacing refer to?

• A. An Increase in Blood Pressure Due to Altitude.
• B. Stagnation of the Blood Caused by Sitting for Long Periods; Can Lead to DVT.
• C. A Condition of Excessive Sweating During Flight.
• D. An Increased Heart Rate Due to Anxiety.

Answer: (B)

Inactivity - Third Spacing refers to fluid shifting out of the blood vessels into the interstitial or transcellular spaces, which reduces the circulating blood volume and can cause edema. When you’re seated for long periods, especially on a flight, the calf muscles aren’t pumping blood effectively, leading to venous stagnation in the legs. This stasis, combined with the fluid shift, raises the risk of deep vein thrombosis. So the best description is stagnation of the blood caused by sitting for long periods, which can lead to DVT. The other options describe altitude-related BP changes, excessive sweating, or anxiety-driven heart rate—things unrelated to third spacing.

Inactivity - Third Spacing refers to fluid shifting out of the blood vessels into the interstitial or transcellular spaces, which reduces the circulating blood volume and can cause edema. When you’re seated for long periods, especially on a flight, the calf muscles aren’t pumping blood effectively, leading to venous stagnation in the legs. This stasis, combined with the fluid shift, raises the risk of deep vein thrombosis. So the best description is stagnation of the blood caused by sitting for long periods, which can lead to DVT. The other options describe altitude-related BP changes, excessive sweating, or anxiety-driven heart rate—things unrelated to third spacing.