What is ultrasound? Do I have to fast for an ultrasound or not?

Ultrasound is one of the techniques to support the examination, diagnosis and treatment of diseases. However, not everyone clearly understands the notes before conducting an ultrasound, especially fasting and urinating. Let’s find out more about this issue with Tnhelearning.edu.vn through the article below!

Learn about ultrasound technology

What is ultrasound?

What is ultrasound?

Ultrasound technology is used in the medical field to diagnose images in the body. By using high-frequency sound waves to scan the body’s organs and display the resulting images on a computer screen.

Ultrasound captures information in real time, thus providing detailed images of the structure and movement of organs , including the observation of blood flow.

Working principle of ultrasonic technique

Working principle of ultrasonic technique

Ultrasound is done by using a transducer to scan the body . The transducer is the part that converts sound waves and receives feedback signals from organs in the body. Before the ultrasound, the doctor will apply a lubricating gel to the skin to facilitate the movement of the transducer and transmit the sound waves through the skin easily.

As the sound wave passes through the organ, it reflects images and sounds. The transducer will receive these signals and transmit the data to the computer for processing. Finally, the computer generates an ultrasound image and displays it on a screen so that medical professionals can read it and make a diagnosis.

Benefits of ultrasound technology

Benefits of ultrasound technology

• Medical Diagnosis: Ultrasound is widely used in medicine to look at the muscles, blood vessels, prostate, uterus, liver, gallbladder, heart, and many other parts of the body. It helps detect and evaluate medical problems such as kidney stones, tumors, warns of the existence of cardiovascular disease, assesses the fetus, and guides during intervention.
• Non-invasive and safe: Ultrasound does not use X-rays or ion rays to create images, so there is no harm to the body. It is a non-invasive, painless, and painless procedure that does not require the use of needles.
• Locating and guiding interventions: Ultrasound can be used to precisely locate the location and size of tumors or organs in the body. This helps doctors determine the exact location to perform interventional procedures such as needle puncture, fluid capture, or abortion.
• Monitoring and Evaluation: Ultrasound allows to track changes in the structure and size of the body over time. It can be used to monitor the condition of the fetus during pregnancy, monitor prostate growth, and monitor the progression of pathologies.

Do I have to fast for an ultrasound?

Known to be a safe method, however, before having an ultrasound you need to follow the instructions and examination of your doctor.

According to the website medlatec.vn, sharing about the notes before ultrasound: “The requirements before performing the ultrasound may be different depending on each specific medical case. This includes fasting before the ultrasound.”

In case you need to fast before the ultrasound

For some cases of abdominal ultrasound, or examination of the liver, gallbladder, or gastrointestinal tract, patients are usually asked to fast for 6 to 8 hours prior to the scan. This helps to ensure that the stomach and intestines are empty, creating the best conditions for displaying the internal organs.

If you have eaten shortly before your ultrasound, it is best to inform your doctor or healthcare provider before the test. They will evaluate the specific situation and decide if the ultrasound results are affected and need to be adjusted. In some cases, your doctor may decide to delay your ultrasound to ensure accurate results.

In case you need to fast before the ultrasound

The case of holding urine before the ultrasound

In some cases of ultrasound examination of the bladder, uterus, prostate gland , the patient may be asked to hold urine for a certain period of time before the ultrasound.

Holding urine and drinking a lot of water increases the pressure and volume of urine in the bladder, causing the bladder to stretch and expand. This facilitates ultrasound examination and evaluation of the bladder, allowing the doctor to see the details and structures inside the bladder more clearly.

The case of holding urine before the ultrasound

When there is no need to prepare before the ultrasound

Echocardiography, diabetes, prenatal, or liposuction usually do not require fasting. In these cases, the doctor will provide specific instructions to the patient before performing the ultrasound test.

Therefore, in order to know exactly whether it is necessary to fast before the ultrasound, the patient should consult and follow the instructions of the doctor or the relevant medical staff.

When there is no need to prepare before the ultrasound

Above is all the information about the ultrasound and the issues to keep in mind about fasting before the ultrasound. Hope the article is useful to you. Follow Tnhelearning.edu.vn for more cool things!

Source: medlatec.vn

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