Ultrasound in Spanish: Preparation, Procedure and Results

Ultrasound in Spanish is commonly called ecografía; ultrasonido is also widely understood. It is a painless imaging test that uses sound waves rather than radiation to help clinicians examine organs, blood flow, pregnancy and certain soft-tissue concerns.

Overview: what is ultrasound in Spanish?

Ultrasound in Spanish is usually called ecografía. The word ultrasonido may also be used, especially in Latin America. Both terms describe an imaging examination that uses high-frequency sound waves to create pictures of structures inside the body.

During an ultrasound, a trained professional moves a small handheld device, called a transducer, over the skin. The device sends sound waves into the body and receives returning echoes. A computer converts these echoes into moving images that can be reviewed by a radiologist or another qualified clinician.

Ultrasound can assess many areas, including the abdomen, pelvis, thyroid, breasts, heart, blood vessels, muscles, joints and pregnancy. It may be requested to investigate symptoms, monitor a known condition, guide a procedure or check how treatment is progressing. It is an imaging test, not a diagnosis by itself; results are interpreted together with symptoms, examination findings and, when needed, other tests.

How ultrasound works and who may need it

Sound waves travel differently through fluid, soft tissue and solid structures. Ultrasound equipment detects these differences and creates images in real time. Doppler ultrasound is a related technique that can show the direction and speed of blood flow, which may help assess arteries, veins and the heart.

A clinician may recommend an ultrasound for abdominal pain, pelvic symptoms, a lump or swelling, abnormal bleeding, urinary symptoms, suspected gallstones, thyroid changes or concerns about blood circulation. In pregnancy, ultrasound is used to assess fetal development and the uterus, placenta and amniotic fluid at appropriate stages of care.

Most people can have an ultrasound, including children, older adults and pregnant people. The scan is especially useful when repeated imaging may be needed because it does not use ionising radiation. However, the most appropriate test depends on the clinical question. In some situations, a clinician may recommend blood tests, X-ray, CT, MRI or another examination instead of, or in addition to, ultrasound.

Before the appointment, patients should tell the care team about pregnancy, recent surgery, dressings, skin wounds, severe tenderness, medications and any difficulty lying flat. These details help the team plan the examination comfortably and safely.

How should I prepare for an ultrasound?

Preparation for an ecografía depends on the area being scanned. The appointment letter or imaging centre should provide the exact instructions, and these should be followed even if they differ from general advice. Patients should contact the centre before the visit if they are unsure whether food, drink or regular medicines are allowed.

For many abdominal ultrasounds, patients may be asked not to eat for several hours beforehand. This can reduce bowel gas and keep the gallbladder fuller, making images easier to interpret. Small sips of water may sometimes be allowed for essential medicines, but patients should confirm this with the imaging team.

For pelvic or bladder ultrasound, patients may be asked to drink water and arrive with a comfortably full bladder. A full bladder can improve views of the bladder, uterus, ovaries or prostate. For thyroid, breast, vascular, musculoskeletal and many pregnancy ultrasounds, special preparation is often unnecessary.

• Wear loose, comfortable clothing that allows easy access to the area being examined.
• Bring identification, referral information and relevant previous scans or reports if available.
• Continue prescribed medicines unless the clinician or imaging centre gives different instructions.
• Ask whether a full bladder or fasting is required before travelling to the appointment.

Clear preparation can help avoid delays or a need to reschedule. It is reasonable to ask for language support or an interpreter if Spanish, English or another language is preferred for discussing the procedure and results.

Can I eat anything 2 hours before my ultrasound?

Whether a person can eat 2 hours before an ultrasound depends on the type of scan. For an abdominal ultrasound, eating shortly before the examination may reduce image quality because digestion and gas in the bowel can obscure some organs. Some centres therefore ask patients to fast for a longer period before the scan.

For scans of the thyroid, breast, veins, muscles, joints or many pregnancy examinations, eating is often permitted. Pelvic and bladder scans may focus more on drinking water than avoiding food. The safest approach is to follow the instructions provided for that specific appointment rather than relying on a general rule.

People with diabetes, those who are pregnant, children and anyone who needs regular food or medication should ask the referring clinician or imaging centre for personalised fasting advice. They should not stop essential medication without medical guidance.

What happens if I drink water before an ultrasound?

Drinking water before an ultrasound can be helpful or unhelpful depending on the examination. For a pelvic, bladder or some early pregnancy scans, water may be specifically requested because a full bladder can create a clearer viewing window for nearby pelvic structures.

Patients are often advised not to urinate after drinking the requested amount of water until the scan is completed. The bladder should feel comfortably full, not painfully overfull. If discomfort becomes significant, the patient should tell the imaging team, who can advise whether a small amount of urine may be passed.

For some abdominal examinations, instructions may limit drinks other than small amounts of plain water. Carbonated drinks can increase gas, and milk or other beverages may stimulate digestion, so they may not be suitable before certain scans. The centre’s preparation instructions remain the most reliable guide.

Step by step: what happens during and after the procedure?

After checking in, the patient may be asked to change into a gown or move clothing away from the area being examined. They will usually lie on an examination couch. The sonographer applies a clear, water-based gel to the skin; this helps transmit sound waves and may feel cool.

The transducer is moved gently across the skin while images appear on a monitor. The sonographer may ask the patient to change position, hold their breath briefly or point to the area of greatest discomfort. Mild pressure can be needed to obtain clear images, particularly during an abdominal scan, but patients should say if it is painful.

Most external ultrasound examinations take around 15 to 45 minutes. More complex studies, such as detailed vascular or cardiac assessments, may take longer. Some pelvic examinations use a slender internal transducer when clinically appropriate; this is explained beforehand, consent is required and the patient may ask questions or decline the examination.

There is usually no recovery period after an external ultrasound. The gel is wiped away, and the patient can normally return to usual activities, eating and driving immediately. If ultrasound is used to guide an injection, biopsy or another procedure, aftercare instructions may be different and should be followed carefully.

How long does an ultrasound normally take?

An ultrasound normally takes about 15 to 45 minutes, although the total visit may be longer because of registration, changing clothes and preparation. A focused scan of one small area may be relatively quick, while a detailed abdominal, fetal, cardiac or Doppler study may require more time.

The duration can also vary if images need to be repeated in a different position, if bowel gas limits the view, or if the clinician needs additional measurements. Taking longer does not necessarily mean that something is wrong; it often reflects the detail required for the examination.

Patients should allow enough time for the appointment and avoid scheduling an urgent commitment immediately afterward. The imaging team can usually give a more specific estimate when the type of ultrasound is known.

Benefits, limitations, risks and results

Ultrasound provides real-time images, is widely available and does not involve ionising radiation. It can be particularly valuable for examining soft tissues, fluid-filled structures and blood flow. It may also be used to guide needles accurately during selected procedures.

External diagnostic ultrasound is generally considered very safe when performed for an appropriate medical reason by trained professionals. The most common temporary issue is mild discomfort from pressure over a tender area or from a full bladder. Internal ultrasound may cause short-lived discomfort for some people, but it should not be painful; patients should communicate with the clinician throughout the examination.

Ultrasound also has limitations. Image quality can be affected by gas in the bowel, body shape, depth of a structure or the location of the area being studied. A normal ultrasound does not always rule out every possible cause of symptoms, and an unexpected finding does not always indicate a serious problem. Further assessment may be recommended to clarify results.

In some settings, preliminary observations may be shared on the day. More often, a radiologist prepares a formal report that is sent to the doctor who requested the scan. The referring clinician explains what the findings mean, whether follow-up is needed and how they relate to the patient’s health history. Acibadem International’s multidisciplinary specialists and JCI-accredited hospitals can coordinate diagnostic imaging and follow-up care for international patients when needed.

When to seek medical care

People should seek timely medical advice if they have persistent or worsening pain, unexplained swelling or a lump, unusual vaginal bleeding, yellowing of the skin or eyes, blood in urine, new urinary difficulty, or symptoms that are affecting daily life. An ultrasound may be one part of the assessment, but a clinician decides whether it is appropriate and how urgently it is needed.

Urgent medical care is appropriate for severe or sudden abdominal or pelvic pain, fainting, heavy bleeding, chest pain, severe shortness of breath, weakness on one side of the body, or other severe symptoms. These symptoms should not be managed by waiting for a routine imaging appointment.

After an ultrasound, patients should contact their clinician if they do not receive expected results or if symptoms continue despite a reassuring report. Follow-up is important because the next step may involve clinical examination, repeat imaging, laboratory tests or referral to a relevant specialist.

Frequently asked questions

What is ultrasound called in Spanish?

Ultrasound is most commonly called ecografía in Spanish. Ultrasonido is also widely used, particularly in Latin American countries. The wording on a referral may vary, but both terms refer to ultrasound imaging.

Do I need to fast before every ultrasound?

No. Fasting is mainly requested for certain abdominal examinations, where food and bowel gas can affect image quality. Scans of the thyroid, breasts, blood vessels or muscles often do not require fasting. Patients should follow the preparation instructions for their particular scan.

Can I take my usual medicines before an ultrasound?

Many people can continue prescribed medicines as usual, often with a small sip of water if fasting is required. However, instructions can differ depending on the scan and a person’s medical needs. Anyone unsure should contact the imaging centre or prescribing clinician before the appointment.

Is an ultrasound painful?

An external ultrasound is usually painless, although pressure over an inflamed or tender area may be uncomfortable. The gel may feel cool on the skin. Patients should tell the sonographer if they feel pain so the examination can be adjusted where possible.

When will I receive ultrasound results?

Timing varies by healthcare setting and by the type of examination. A sonographer may not be able to provide a final interpretation during the scan because a radiologist or specialist may need to review the images. The referring clinician usually explains the formal results and any recommended next steps.

Does ultrasound use radiation?

No. Ultrasound uses sound waves rather than ionising radiation, unlike X-rays and CT scans. It is commonly used when repeat imaging is needed, including during pregnancy, when clinically appropriate.

References

• World Health Organization
• Radiological Society of North America
• American College of Radiology
• National Institute for Health and Care Excellence
• U.S. Food and Drug Administration

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.