What does "Nuclear stress test" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
A nuclear stress test is a medical procedure used to check how well the heart is working, especially its blood flow. During the test, a safe, small amount of radioactive substance is injected into the patient's body. This substance makes the heart visible on an imaging machine. The images taken before and after exercise can show if there are areas of the heart not getting enough blood or if there are blockages in the arteries.
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