Renal Functional Tests.—The following schedule is used by Mosenthal, of the Johns Hopkins Hospital, in making what is known as the “Two-Hour Test for Renal Function”:

HEDINGER-SCHLAYER-MOSENTHAL DIET[129]

For Date

All foods to be salt-free from the diet kitchen, salt for each meal will be furnished in weighed amounts.[130]

All foods or fluids not taken must be weighed or measured after each meal and charted in spaces below. Allow no food or fluid at any time except at meal times.

Note any mishaps or irregularities that occur in giving the diet or collecting the specimens.

Breakfast 8 A.M.Boiled oatmeal100 grams
Sugar 1 to 2 teaspoonfuls
Milk 30 c.c.
2 slices of bread 30 grams each
Butter 20 grams
Coffee 160 c.c.
Sugar 1 teaspoonful 200 c.c.
Milk 40 c.c.
Dinner—NoonMeat soup180 c.c.
Beefsteak100 grams
Potatoes, boiled, mashed or baked130 grams
Green vegetables as desired
2 slices bread—each 30 grams
Butter 20 grams
Tea, 180 c.c.
Sugar, 1 tsp. 200 c.c.
Milk, 20 c.c.
Water250 c.c.
Pudding, tapioca or rice110 grams
Supper 5 P.M.2 eggs cooked any style
2 slices of toast 30 grams each
Butter 20 grams
Tea, 180 c.c.
Sugar, 1 tsp. 200 c.c.
Milk, 20 c.c.
Fruit, stewed or fresh 1 portion
Water300 c.c.

8 A.M. No food or fluid is to be given during the night or until 8 o’clock next morning (after voiding) when the regular diet is resumed.

Patient is to empty bladder at 8 A.M. and at the end of each period as indicated below. The specimens are to be collected for the following periods in properly labeled bottles:

8 A.M. to 10 A.M.; 10 A.M. to 12 Noon; 12 Noon to 2 P.M.; 2 P.M. to 4 P.M.; 4 P.M. to 6 P.M.; 6 P.M. to 8 P.M.; 8 P.M. to 8 A.M.