Labels:text | screenshot | black | font | black and white OCR: r polyuria Only three basic disorders can account f four-hour (arbitrarily defined as a persistent twent dipsia urine volume greater than 2.51) and pol nial (excessive thirst): primary polydipsia, cr etes diabetes insipidus, and nephrogenic dial insipidus. See later: . The Water Deprivation Test Other Tests in Polyuria