I would go with 4% i dont know
A dancers diet should typically be 55-60% carbohydrate. During intense training and rehearsal, carbohydrate should be increased to make up 65% of all calories consumed. The best sources of carbohydrates for dancers are complex carbohydrates, such as wholegrain cereals, breads, rice, starchy vegetables, fruit and pasta.
To ask what his pain level is and to describe exactly what the pain feels like and the location of the pain. She can try other pain relief measures, change his position, massage, distraction. If none of these relieve the pain she may need to call the physician for another order for something stronger. Hope this helps. I'm a nurse.