What is the scale for assessing edema defined as +1?

The scale for assessing edema is a standardized way to quantify the degree of swelling by measuring the depth of the imprint left on the skin when pressure is applied. A rating of +1 indicates a slight indentation, which typically measures around 2 mm in depth. This subtle imprint signifies that some fluid has accumulated in the interstitial spaces, but it is minimal and can easily be reversed.

In clinical assessments, the +1 rating is critical as it helps healthcare providers track changes in a patient's condition over time. Identifying even slight edema can be essential in managing various health issues, such as heart failure, kidney problems, or venous insufficiency. Therefore, understanding that +1 reflects a slight imprint of approximately 2 mm allows for better monitoring and effective treatment decisions.