Fasting is usually not required for the test of renal function alone. However, patients should have a light diet and proper rest before the test.
In general, the examination of renal function generally does not need fasting. However, because there are many causes of renal function abnormality, if the patient’s test program needs to improve the etiology of the test, etiology of the test contains blood sampling program is recommended to fasting, to avoid eating affects the results of the test.
Patients are advised to pay attention to diet before the renal function test, focusing on light, less spicy, stimulating food, such as chili peppers, onions, etc. Patients should also eat less high-protein and high-fat food, such as fish, shrimp, fatty meat, etc. Patients should ensure adequate rest, and should not eat a lot of food. Patients should ensure adequate rest, should not stay up late or overwork.
Simple kidney function test generally do not need fasting, but patients should improve the test program under the guidance of the doctor, and further consult the doctor to clarify whether the fasting.