Kidney stones do B-ultrasound need fasting

For kidney stones B ultrasound examination, generally do not need fasting, if necessary, need to hold urine.

1. Kidney stones belong to urinary system stones, usually need to do urinary system color Doppler ultrasound, in addition to understanding the kidney situation, but also need to understand the ureter bladder. Therefore, patients need to hold urine after examination, it will be more accurate.

2. Patients can drink more water before examination, so that the bladder is filled, and the filled bladder can form a sharp contrast with the surrounding tissues during B ultrasound examination, which is more conducive to discovering whether there are stones in the bladder.

3. Kidney stones sometimes accompanied by urinary stricture, drink more water before examination, and more urine is accumulated in the ureter, which is more conducive to discovering the size and number of stones

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