Do I need to fast for liver, gallbladder and kidney ultrasound?

The liver and gallbladder are the most important organs in our human body, and liver, gallbladder and kidney B-ultrasound is a medical examination method. Medical examination instruments can be used to check whether our liver, gallbladder and kidneys are normal. However, there are some things that need to be paid attention to when doing liver, gallbladder and kidney B-ultrasound. Before doing the B-ultrasound examination, you need to be on an empty stomach, do not drink water or eat, and do not eat any food for a detailed examination. At the same time, B-ultrasound can also check whether there are cysts, etc.

Is fasting required for hepatobiliary B-ultrasound?

You need to fast when doing liver and gallbladder ultrasound. Don't drink water or eat food in the morning. Renal ultrasound does not require fasting. If you do a B-ultrasound of the ureter and bladder. Need to hold urine

Hepatobiliary B-ultrasound mainly examines the liver and gallbladder. It is a non-invasive examination method that uses the principle of ultrasound to judge the physical characteristics, morphological structure and functional status of the liver and gallbladder tissues and organs of the human body. Make better judgments on the size of various blood vessels in the liver, the speed and direction of blood flow, and the establishment of collateral circulation.

Based on the changes in echoes and graphics, we can understand whether there are any lesions in the liver tissue, and preliminarily judge lesions such as fatty liver, cirrhosis, liver cysts, liver abscesses, and liver tumors. It is generally believed that a normal liver has uniform color ultrasound echo waves, no impurities, and normal liver shape and size; while messy echoes, uneven distribution, and a shape that is too large or too small all indicate possible pathological changes in the liver. Therefore, it is more helpful to differentiate between various benign and malignant space-occupying lesions, cystic and various arteriovenous aneurysms.

Color Doppler ultrasound of the liver is widely used in clinical practice due to its advantages such as convenience, no radiation, low cost, and repeated use. If hepatobiliary ultrasound cannot diagnose the disease, further examinations such as CT or PET-CT can be selected. PET-CT is particularly suitable for distinguishing benign liver tumors from liver cancer.

The purpose of fasting during abdominal ultrasound examination is to avoid the gallbladder contracting after eating and affecting the imaging. However, if the gallbladder can still be observed well during the examination, then not fasting will not have any effect. As for gallbladder polyps, if they are smaller than 5mm, the possibility of malignancy is generally very small. Kidney stones smaller than 8mm can basically be discharged through the normal urinary tract by drinking more water, exercising more, and sleeping on the healthy side. Suggestions: It is recommended to follow up and reexamine regularly, dynamically observe and compare the evolution of the lesions, and take treatment when necessary.