Increased urine output after kidney transplantation is generally a normal phenomenon, mainly due to the use of intraoperative diuretics, the recovery of renal function compensation as well as the role of high-dose rehydration.
1. Diuretics: In order to enhance the recovery of transplanted kidney function during the operation, furosemide and other diuretics are injected intravenously in the middle and late stages of kidney transplantation surgery, and the time of action can reach several hours, and kidney transplantation patients will also use different doses of diuretics intravenously to maintain the urine output according to the needs of their condition after the operation.
2. Compensation of renal function: kidney transplant patients are generally chronic renal insufficiency uremia patients, patients with preoperative renal function has been uncompensated, renal clearance of metabolic wastes in the body and urinary excretion dysfunction, generally in oliguria or anuria, generally need dialysis to maintain life, postoperative due to the transplantation of the kidney replacement compensation function, so the postoperative urine volume increases.
3. High-dose rehydration: postoperative patients are in anesthesia recovery state, need to support the treatment through intravenous rehydration, and in order to maintain renal perfusion pressure, generally back to the use of circulating rehydration, due to the role of crystal or colloidal osmolality, the glomerular filtration rate increases, the urine volume increases.
Increased urine output after transplantation is a manifestation of the compensation of the transplanted kidney function, and it is necessary to pay attention to the changes in blood pressure and carry out the relevant treatment under the guidance of the physician.