Long-term standby doctor's advice is written in the long-term doctor's advice column. After each execution, the nurse records it in the temporary doctor's advice column and indicates the execution time and signature. Temporary standby doctor's advice is written in the column of temporary doctor's advice, which is valid within 12h. If it's overdue, it will be invalid if it's not implemented, or should the nurse mark it with a blue pen? Useless? .