Question

Which of the following statements expresses the correct relation between lumen diameter and gauge number?

1) as the diameter increases, the gauge number increases
2) as the diameter decreases, the gauge number decreases
3) as the diameter decreases, the gauge number increases
4) as the diameter increases, the gauge number stays the same

Answer 1

The correct relation between lumen diameter and gauge number is that as the diameter decreases, the gauge number decreases.

Step-by-step explanation:

The correct relation between lumen diameter and gauge number is:

2) as the diameter decreases, the gauge number decreases.

This is because resistance is inversely proportional to the radius of the blood vessel, which is half of the vessel's diameter. When the diameter decreases, the resistance to flow increases, resulting in a decrease in the gauge number.