HIDA scan patient guide

Overview

A HIDA scan is a safe, painless imaging test that uses a tiny amount of radioactive tracer to see how well your gallbladder and bile ducts are working. It helps doctors find problems like blockages, inflammation, or leaks in the bile system.

A HIDA scan is a common test when doctors suspect gallbladder or bile duct problems.

It is used for people of all ages who have symptoms like upper belly pain, jaundice, or nausea after eating fatty foods.

Symptoms

Common symptoms

• Pain in the upper right part of the belly, especially after eating fatty meals
• Nausea or vomiting
• Yellowing of the skin or eyes (jaundice)
• Dark urine or pale stools

Symptoms in children

• Unexplained abdominal pain that comes and goes
• Poor feeding or weight loss
• Yellow tint to the skin

Symptoms in older adults

• Dull ache in the upper belly that doesn't go away
• Fever with abdominal discomfort
• Loss of appetite or feeling very tired

Causes

Main causes

• Suspected gallbladder disease (such as gallstones or cholecystitis)
• Blocked bile ducts
• Bile leaks after surgery or injury
• Problems with liver function affecting bile flow

Risk factors

• Being overweight or obese
• Rapid weight loss (like after bariatric surgery)
• A diet high in fat and low in fibre
• Family history of gallbladder problems
• Certain medical conditions (like diabetes or cirrhosis)

When to see a doctor

See a doctor urgently if:

• Seek emergency care if you have sudden severe belly pain, high fever, or jaundice.

Book a routine appointment if:

• Make an appointment with your GP if you have ongoing upper belly pain, nausea after eating, or changes in your bowel habits.

Diagnosis

Your doctor will start with a physical exam and blood tests. If they suspect a gallbladder or bile duct issue, they may order a HIDA scan to see how these organs are working.

Tests that may be done

• Blood tests (liver function tests, check for infection)
• Ultrasound to look for gallstones or structural problems
• HIDA scan (hepatobiliary iminodiacetic acid scan)

What to expect at your appointment

On the day of the test, you will lie on a table while a nurse injects a tiny amount of radioactive tracer into a vein in your arm. A special camera will take pictures as the tracer moves through your liver, gallbladder, and bile ducts. You may be asked to drink a fatty liquid or have another injection to make your gallbladder squeeze. The scan takes about 1 to 2 hours, and you can return to normal activities afterwards. The radiation is very small and not harmful.

Treatment

Treatment depends on what the HIDA scan finds. If there are gallstones, infection, or blockages, your doctor will discuss the best options with you.

Self-care at home

• Eat a low‑fat diet to reduce gallbladder symptoms
• Stay hydrated and avoid large, heavy meals
• Maintain a healthy weight with gentle exercise

Medical treatments

Your doctor may prescribe antibiotics for an infection or bile acid medications to help dissolve certain types of gallstones. Always follow your doctor's instructions and never take medicines not prescribed for you.

When is surgery considered?

If the HIDA scan shows severe gallbladder disease, such as repeated inflammation or large gallstones, surgery to remove the gallbladder (cholecystectomy) is often recommended. This is a common and generally safe procedure.

Living with this condition

After a HIDA scan, you can go back to your normal routine. If you have gallbladder issues, you may need to make small changes to feel better.

Lifestyle tips

• Eat smaller, more frequent meals rather than three large ones
• Avoid fried, greasy, or very fatty foods
• Keep a healthy weight with a balanced diet and regular physical activity

Diet and exercise

A diet rich in fruits, vegetables, whole grains, and lean protein supports gallbladder health. Regular walking, swimming, or other moderate exercise can help manage symptoms and overall wellbeing.

Mental health and emotional wellbeing

Living with persistent pain or digestive problems can be stressful. It’s important to talk to your doctor about any worries you have. Many people find support from talking to family, friends, or a counsellor.

Prevention

Not all gallbladder problems can be prevented, but a healthy lifestyle can lower your risk. Eating a diet low in saturated fat, staying active, and avoiding rapid weight loss may help.

Vaccines

There are no vaccines for gallbladder or bile duct conditions.

Screening programmes

Routine screening is not recommended for the general public. A HIDA scan is only done if you have symptoms that suggest a problem.

Complications

If left untreated

• Gallbladder infection (cholecystitis) that can become severe
• Bile duct blockage leading to jaundice or liver damage
• Pancreatitis (inflammation of the pancreas)
• Bile leaks after surgery or injury

Long-term outlook

With proper diagnosis and treatment, most gallbladder and bile duct conditions have a very good outlook. Many people fully recover and can lead active, healthy lives. Even if your gallbladder needs to be removed, you can live well without it.

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