Stress MUGA (MultiGated Acquisition)
What is the doctor looking for?
How the heart pumps blood, and how the walls of the heart move under stress conditions.
What is the test?
Patient will have blood drawn to be mixed with radionuclide so doctor can see how the heart pumps blood. (This is NOT a dye!) The patient will ride a stationary bike while lying on an imaging table. Pictures will be taken while the patient is riding the bike.
Where are the tests done?
In Nuclear Medicine.
May I eat or drink?
You need to stop eating and drinking 2 hours before the test.
What about medications?
You need to discuss your medications with your doctor or nurse. You should be off Beta Blockers and Calcium Channel Blockers for 48 hours before the test. Stop long acting nitrates (daily pills and patches) 12 hours before the test. It is OK to use nitro sprays and under the tongue nitroglycerin up to 2 hours before the test. If you are diabetic, take half of your usual insulin. You may bring the rest of your dose and something to eat or drink if you feel you need it. Do NOT take pill form of diabetes medication unless otherwise instructed. All other medications except those we mentioned may be taken with a sip of water. Please inform the Nuclear Medicine Technologist if you are on any anti-coagulants such as heparin or coumadin. If you have any questions, please call your Doctor.
Will I have an IV?
Yes, an IV will be inserted.
Do I need special clothing?
Wear comfortable clothing and shoes.
What should I bring to the test?
You may want to bring something to read to help pass the time.
How long does the test take?
Approximately 2 hours.
When will the results be ready?
Results are generally available to your physician within 24 hours.
Tell your doctor/nurse if you have …
Asthma, COPD, breathing problems, or if you have any chest pain.
Will the test make me sick or sleepy?
Will I receive any radiation during the procedure?
A small amount of radiation is received. Increasing your intake of fluids will help remove the radiation through the urine.
What if I am pregnant or breast-feeding?
Notify your physician, as this test may not be appropriate.