Thanks for your query.Based on the facts and reports of Ultrasound
scanning and Urine Analysis,it appears that you had UTI with Pyelonephritis
on Rt side indicating that you had infection in your Rt kidney
.Since you have taken antibiotics and you recent Urine analysis reveals that your UTI has subsided you may not worry at all.
Continue the same treatment for a week and ensure to drink 5-6 litres of water in 24 hours.