Stress Thallium test is also known as a Cardiac test. This is an imaging test that helps monitor blood flow to the heart. It allows the doctor to analyze the heart rate when the body is put under physical stress.
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What is a Stress Thallium Test?
Stress Thallium test is also known as a Cardiac test. This is an imaging test that helps to monitor blood flow to the heart. It allows the doctor to analyze the heart rate and blood flow when the body is put under physical stress. It helps to evaluate the heart’s ability to respond to stress put externally in a controlled environment compared to when it is at rest completely.
Why is a Stress Thallium test performed?
The doctor may recommend a Stress Thallium test for the following reasons –
- To check the supply of blood to the heart
- To monitor the heart-rate pattern
- In case of unexplained chest pain
- History of heart attack(s)
- To analyze the functioning of the heart
- To monitor ongoing treatments
What is the procedure for a Stress Thallium test?
During a Stress Thallium test, a medicine called a radioisotope is injected into the vein. This radioisotope ends up in the bloodstream and allows the doctor to see any issues the heart is facing due to the radiation in the heart. A special camera is used that helps to capture images of the heart.
Stress Thallium test is carried out by monitoring the heart rate and blood flow in 2 situations.
1. In exercise mode
During this part of the stress thallium test, the doctor asks the patient to exercise, like walking on a treadmill. The doctor then monitors the heart rate and blood flow to the heart while the body is under stress while gradually increasing the level and speed of the test.
2. In rest mode
During this part of the stress thallium test, the doctor makes the patient lie down for about 15-20 minutes. The body is at complete rest. The doctor then monitors the patient’s heart rate and blood flow in the same situation.
How to prepare for a Stress Thallium test?
The following things are to be kept in mind before a Stress Thallium test –
- The doctor may recommend fasting before the test.
- Avoid tea or caffeine consumption before the test.
- Loose clothing and comfortable shoes should be worn for the test.
- If you have any existing medical conditions or allergies, discuss the same with the doctor beforehand.
