This is an automatically translated article.
The article is professionally consulted by Master, Doctor Nguyen Quang Duc - Doctor of Nuclear Medicine - Department of Diagnostic Imaging and Nuclear Medicine - Vinmec Times City International General Hospital. The doctor has more than 12 years of experience in the field of Diagnostic Imaging.Ultrasound is a non-invasive, painless and safe imaging tool for patients. Abdominal ultrasound is the preferred test indicated when pathologies of the abdominal organs are suspected, including renal ultrasound to detect kidney stones. So, when performing an ultrasound of kidney stones, do you need to fast?
1. What is an ultrasound for?
Ultrasound is a diagnostic imaging tool that uses high-frequency sound waves to observe abnormalities in the body through different conventional black and white images.Ultrasound can record many diseases related to the abdominal organs such as: liver, kidney, pancreas, spleen, bladder, prostate, uterus, appendages... Besides, ultrasound also very sensitive in detecting appendicitis, large bowel tumors, recording the presence of abnormal fluid in the abdomen or in the pleura...
Outstanding advantages of ultrasound compared with other means Other imaging tests are non-invasive, relatively safe for health, inexpensive, easy to perform, and have not recorded any complications.
One disadvantage of ultrasound is that the results are operator dependent.
2. What is a kidney stone ultrasound?
Kidney stones in particular and urinary tract stones in general are common diseases in the urinary tract. It is more common in men than in women, the average age is from 30 to 55 years old, but it can happen at any age.Kidney stones often form from the sediment during urine excretion. If the stone is small compared to the urinary tract, the body can pass it out on its own without causing any signs or symptoms.
The opposite case, when large stones or small stones get stuck in a certain position on the way, then grow bigger and obstruct the flow of urine, leading to urine stagnation. , above the obstruction, the dilatation bulges over time and causes symptoms and complications:
Abdominal pain like renal colic ; Obstruction of urine flow, causing less urine output, water retention in the kidneys; Infection at the site where the stone is entangled; Formation of other stones and aggravate the condition; Renal failure, gradual destruction of kidney structure.
Người bệnh gặp triệu chứng điển hình của cơn đau quặn thận
Ultrasonography of kidney stones brings high efficiency in disease diagnosis with the advantages of simplicity, low cost, safety for the patient and the ability to ultrasound the kidneys many times without harming the patient.
When the patient shows abnormal signs of kidney stones, the first thing to do is an ultrasound of the kidneys. Ultrasonography of kidney stones helps diagnose the disease as well as suggest for the treatment process later, avoid detecting the disease at a late stage and cause dangerous complications, especially kidney failure.
However, there are many cases of stones, but patients are subjective, only discovered by chance during routine physical examination or kidney ultrasound to diagnose another intra-abdominal pathology.
Most cases of kidney stones can be detected by renal ultrasound. However, there are still difficult cases when it is necessary to combine ultrasound of kidney stones with other methods such as abdominal X-ray or abdominal CT.
3. When to order ultrasound of kidney stones?
Ultrasound of kidney stones is a test that is often ordered when the patient has regular check-ups or when the patient has the following signs of suspicion for stones:Painful urination, difficulty urinating or complete urinary retention; Gross hematuria ; Changes in urine such as white urine, unusually cloudy or cloudy urine... Abdominal pain like renal colic; Unexplained sudden drop in blood pressure due to another medical condition; Patients with a history of kidney diseases such as polycystic kidney, kidney failure...
Phương pháp kỹ thuật siêu âm sỏi thận cần được thực hiện tại cơ sở y tế uy tín
4. Does ultrasound of kidney stones require fasting?
Kidney stone ultrasound is relatively simple, but does kidney stone ultrasound need to fast? According to the ultrasound procedure, the patient needs to fast for at least 6 to 8 hours before the kidney stone ultrasound.The ideal condition is to ultrasound the kidney stones in the morning when the patient has fasted since the evening of the previous night. The reason is that when the patient fasts like that, the food is completely digested and avoids virtual images that affect the results of the renal ultrasound.
Another requirement is equally important that the patient needs to drink a lot of water and hold urine before the ultrasound. Holding in urine will enlarge the bladder, making it easier to see the stone because the contrast between the urine and the stone is opposite (the stone is white and the urine is black on the ultrasound screen).
Hopefully, through the above article, readers can understand the ultrasound process and do kidney stone ultrasound require fasting or not?
Currently, Vinmec International General Hospital has been using modern generations of color ultrasound machines. One of them is GE Healthcarecar's Logig E9 ultrasound machine with full options, HD resolution probes for clear images, accurate assessment of lesions. In addition, a team of experienced doctors and nurses will greatly assist in diagnosing and early detection of abnormal signs of the kidney as well as of many other organs in the body in order to come up with a method. timely treatment.
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