Trace 1+ protein in 4 year kid. Step.

Hi , My kid is having edema in eyes after waking . She has be identified few :- 1. The protein/creatine ratio identified 0.31 mg/dl once in random test ( after the first urine ) 2. The protein/creatine ratio identified on next day in morning first urine after waking is 0.19 mg/dl 3. Took microalbumin/creatin ratio in random test it is 10.1 mg/dl 2. No albumin in the routine test in random , morning first urine 3. The dip stick analysis shows trace 1+ (30 mg/dl) during day time , observed twice 4. Took Ultra sound, observed minimal fluid in abdominal cavity. 5. LFT test looks normal 6. ECG looks normal 7. Doctor did physical examination , no BP, no weight gain . Only edema in eye persist and trace 1+ observed in day time urine. Please advise is it alarming . Kindly advise next step .