Question: what is 2+ pitting edema?
Answer: This is the least severe type of pitting edema. Grade 2: The pressure leaves an indentation of 3–4 mm that rebounds in fewer than 15 seconds. Grade 3: The pressure leaves an indentation of 5–6 mm that takes up to 30 seconds to rebound. Grade 4: The pressure leaves an indentation of 8 mm or deeper.