When discussing the pitting edema grading scale how is +4 described?
a. Barely detectable pitting is 2 mm (0 to 1/4 inch) Disappears rapidly
b. Mild Pitting is less than 5 mm (1/4 to 1/2 inch) Disappears in 10 to 15 seconds
c. Moderate Indentation is 5 to 10 mm (1/2 to 1 inch) May last more than a minute
d. Severe Indentation of greater than 10 mm (1 inch ) Lasts 2 to 5 minutes Severe