Are you saying LDH levels in general only matter to those being treated for Stage 4? Or, are you saying that level, 216, would be of concern to someone being treated for Stage 4?
Yes, it is followed by those under active treatment, but lots of disagreement about its relevance. Not relevant to you, except for maybe something else besides melanoma, but high side was over 330, look here for more info to drive you crazy or maybe not: http://www.nlm.nih.gov/medlineplus/ency/article/003471.htm