~Development of Uremia.~--Whenever evidences of uremia appear the treatment must be changed to meet the condition. It is necessarily more strenuous than that used ordinarily in the chronic nephritis. If the uremia becomes positive, then the treatment laid down for acute nephritis already described must be at once instituted. The patient must be put to bed at once and every effort made to assist the body in getting rid of the causes. In certain cases of nephritis, in which uremic poisoning is due to the retention of the end-products of nitrogen metabolism, or to the toxins formed as a result of the tissue changes due to the disease, the water then instead of being restricted in the dietary is greatly increased to encourage a free diuresis with a consequent washing out of the accumulated poison. Certain authorities recommend a strict milk and water diet, as has already been described in the beginning of the chapter. A light or soft diet is advised until the condition improves, resting the renal organs as far as possible. This diet may consist of fruit juices, strained cereals with cream, cocoa, milk, buttermilk, toast, butter, strained apple sauce, cream soups, except those made with beans or peas. The above diet is gradually increased by adding a mashed or baked potato, well-cooked green vegetables, stewed or raw fruit, rice and tapioca pudding, and chocolate blanc-mange. ~Selection and Preparation of Food.~--The preparation of foods for the nephritic differs in certain particulars from that used in other pathological conditions, namely, the restriction of certain food constituents; dishes made with meat and eggs are cut out of the diet, and salt is used as sparingly as possible, when it is used at all. The nurse must weigh or measure out the maximum quantity allowed and divide this in portions for each feeding, measuring carefully any that is not used and charting it. In this way it is possible to increase or decrease the amount according to the symptoms of the individual. The water content of the various foods comprising the diet is, as a rule, not considered, but it is necessary to adhere strictly to the orders of the physician and to curtail the beverages, water, tea, coffee, etc., until the amount conforms to that laid down in the dietary. The nitrogenous foods, with the exception of milk, are as a rule eliminated from the nephritic diet. The nurse must study the tables and learn which food materials come under this head. It may seem difficult to prepare diet for the sick without eggs, but it is possible and at times obligatory.