Preparing for HIDA scan
Informed by recognized medical guidance
Overview
A HIDA scan (hepatobiliary iminodiacetic acid scan) is a imaging test that checks how well your gallbladder, liver, and bile ducts are working. It uses a small amount of radioactive tracer to see how bile flows through your body.
Key facts
- The test is painless and takes about 1 to 2 hours.
- You will need to fast (not eat or drink) for 4 to 6 hours before the scan.
- The radioactive tracer leaves your body naturally through urine and bowel movements within a day.
HIDA scans are a standard test for evaluating gallbladder function and bile flow problems.
This test is used for people of all ages who have symptoms like upper abdominal pain, nausea, or jaundice (yellowing of skin or eyes).
Symptoms
- Sudden, severe abdominal pain that does not go away
- High fever with chills and vomiting
- Yellowing of skin or eyes that appears suddenly
- ⚠Pain that worsens over a few hours
- ⚠Nausea or vomiting that prevents you from keeping fluids down
- ⚠Pain along with a fever above 38°C (100.4°F)
Common symptoms
- Upper right abdominal pain, especially after eating fatty foods
- Nausea or vomiting
- Jaundice (yellow skin or eyes)
Symptoms in children
- Irritability or fussiness
- Poor feeding or vomiting
- Yellowing of skin or eyes
Symptoms in older adults
- Vague abdominal discomfort
- Unexplained fever or chills
- Confusion or fatigue
Causes
Main causes
- Gallstones blocking the bile ducts
- Inflammation of the gallbladder (cholecystitis)
- Bile duct blockage from other causes like tumors or scarring
Risk factors
- Being overweight or obese
- Eating a high-fat, low-fiber diet
- Having diabetes or liver disease
- Family history of gallbladder problems
When to see a doctor
See a doctor urgently if:
- Severe abdominal pain that does not improve
- Pain accompanied by fever or vomiting
Book a routine appointment if:
- Mild, intermittent pain after meals
- Unexplained nausea or indigestion
Diagnosis
Your doctor will order a HIDA scan if they suspect a problem with your gallbladder or bile ducts based on your symptoms and earlier tests like ultrasound.
Tests that may be done
- Ultrasound of the abdomen (often done first)
- Blood tests to check liver function and bilirubin levels
- HIDA scan to see bile flow in real time
What to expect at your appointment
You will be asked to fast for several hours before the scan. A small IV (thin tube) will be placed in your arm to inject the radioactive tracer. You will lie on a table while a camera takes pictures of your abdomen. Sometimes you will be given a special drink or medication to help your gallbladder contract. The scan is painless, and you can go home right after.
Treatment
Treatment depends on what the HIDA scan shows. If it reveals a blocked or inflamed gallbladder, options include medications to dissolve stones (only for certain types) or surgery to remove the gallbladder.
Self-care at home
- Eat a low-fat diet to reduce gallbladder strain
- Maintain a healthy weight through regular exercise and balanced meals
- Avoid sudden large, fatty meals
Medical treatments
Doctors may prescribe antibiotics for infection, or medications to help dissolve certain types of gallstones (only if stones are small and made of cholesterol). Pain relievers can help with discomfort. Always follow your doctor's advice on treatment.
When is surgery considered?
If the HIDA scan shows a severely inflamed gallbladder or a blockage that does not improve, your doctor may recommend surgery to remove the gallbladder (cholecystectomy). This is a common and safe procedure.
Living with this condition
Most people who have gallbladder issues can manage symptoms with diet changes. After gallbladder removal, you can eat a normal diet but may need to avoid very fatty foods at first.
Lifestyle tips
- Eat smaller, more frequent meals rather than large ones
- Choose lean proteins, whole grains, fruits, and vegetables
- Stay physically active with activities like walking or swimming
Diet and exercise
A diet low in fat and high in fiber can reduce gallbladder attacks. Regular exercise helps maintain a healthy weight and lowers the risk of new gallstones.
Mental health and emotional wellbeing
Living with chronic abdominal pain can be stressful. Talk to your doctor about any feelings of anxiety or depression. Support from friends, family, or a counselor can help.
Prevention
You cannot always prevent gallbladder problems, but a healthy lifestyle—maintaining a healthy weight, eating a low-fat diet, and staying active—can lower your risk.
Complications
If left untreated
- Severe infection of the gallbladder (gangrenous cholecystitis)
- Blockage of the bile ducts leading to jaundice and liver damage
- Pancreatitis (inflammation of the pancreas)
Long-term outlook
With proper diagnosis and treatment, the outlook for gallbladder problems is very good. Many people recover fully after surgery or lifestyle changes and return to normal activities.
Find support
External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.
Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Related conditions
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 19, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.