Urine routine should pay attention to the use of morning urine, drink less water before the urine test, etc.; blood routine should pay attention to a light diet before the test, relaxation and other matters. Specific precautions are as follows. The precautions for routine urinalysis are as follows. 1, the first urine after waking up in the morning, the test results are often the most accurate. 2, you should not drink water before the urine test, and you should not drink water before the urine test. 2. You should not drink too much water before the urine test so that the urine is not diluted and the test results are affected. 3. clean the perineum well before the urine test, men should clean the foreskin. Women should also avoid menstruation to prevent vaginal secretions such as leukorrhea and menstrual blood from entering the urine. 4. 4. It is best to take the mid-stage urine (throughout the urination process, the first 20ml or so of urine is discharged, and then the retained urine is the mid-stage urine). The precautions for routine blood test are as follows. 1. Keep your mood relaxed during blood sampling to avoid the difficulty of blood collection due to vasoconstriction caused by nervousness. 2. Consult your doctor before the test to see if you need to stop taking any medication.