The rate of correct answers to knowledge about MSDs symptoms Knowledge on MSDs N = 1179% Never heard of or know about MSDs 134 11, 37 Ever heard or know about MSDS 1045 88, 63 - Correctly mention all 3 symptoms 705 67, 46 - Other (Numbness, limiting movement) 49 4, 69 Comment: 1045 nurses have heard of MSDS.