(2) Nursing diagnosis: ① Excessive body fluids: related to impaired renal function, decreased glomerular filtration and decreased urine output; ② Malnutrition: It is related to renal function damage, protein loss and insufficient intake.
(3) Health education: Patients may have a sharp decline in renal function due to infection, hypertension, fatigue, use of nephrotoxic drugs, vomiting, diarrhea, etc. Therefore, it is necessary to strengthen nursing, measure blood pressure and temperature on time, and guide patients to improve their protective ability. (1) instruct patients to prevent infection, avoid fatigue, take medicine according to the doctor's advice, and do not take medicine without authorization, so as to improve patients' understanding of protecting renal function and personal protective measures; (2) instruct patients to rest physically and mentally, limit the intake of water and salt, and closely observe the changes of blood pressure. If you find the phenomenon such as increased heart rate, arrhythmia, dyspnea and irritability, you should contact your doctor immediately, give medicine according to the doctor's advice, and care for cardiac insufficiency.