O Oliguria type of ARF When various diseases lead to destruction of the tubular cells of the nephron(as typically occurs in cases of ATN) a characteristic response pattern is noted It usually develops in three stages Oliguria phase diuresis phase recovery phase 3232 When various diseases lead to destruction of the tubular cells of the nephron (as typically occurs in cases of ATN), a characteristic response pattern is noted. It usually develops in three stages: Oliguria phase  diuresis phase  recovery phase (l) Oliguria type of ARF