IV Persantine-Thallium Stress Test (IVP)
What is an IV Persantine-Thallium
- This test is an alternative procedure for patients
with coronary artery disease who can not exercise on a bicycle.
- An IV line is started to administer the persantine
and the thallium.
- Persantine helps to expand the coronary arteries
increasing the blood flow to the area. This effect is similar to what
happens during vigorous exercise.
- Thallium (a radioactive isotope) is detected by
X-rays and shows which parts of the heart muscle are receiving enough
- Side effects of thallium are rare and may include
rashes or low blood pressure.
- Possible temporary side effects of Persantine may
include: headache, dizziness, nausea/vomiting, chest discomfort.
- Electrodes will be placed on the chest so that the
heart rate and rhythm will be monitored by an electrocardiogram (EKG).
- A special camera takes pictures of the heart.
- This test is usually administered in 2 phases with
each phase lasting 30-60 minutes. The patient may be required to return the
following day to complete the second phase.
- The phase of this test takes about 60 minutes.
- This test must be ordered by the cardiologist.
Why is a Persantine Stress Done?
- This test will help the cardiologist to evaluate the
patient's cardiac condition related to:
- Irregular heart rhythms
- Which areas of the heart are not getting enough
blood and oxygen.
- How quickly the heart recovers after exercise.
What Preparation is Needed?
- Nothing to eat or drink for 3 hours prior to the
- Do not smoke or drink caffeine for at least 6 hours
prior to the test.
- It is important for the patient to ask his doctor:
- how to adjust his insulin and food intake prior to
the test if he is a diabetic
- if he should take his regular medications the
morning of the test.
- if he is on a Beta Blocker, can he STOP taking
this medication 72 hours before the test as this is recommended for best
- If the patient is taking aminophylline or theodur,
he must discontinue it for 48-72 hours prior to the test.
- The patient must notify his cardiologist if:
- he is allergic to Theophylline or Persantine
- he has asthma, chronic lung disease or any heart
- Do not apply lotions, oils or powders to the chest