A blood test known as a cadmium lab test is often performed to screen for the possibility of cadmium poisoning or when it is necessary to monitor exposure to the metal element known as cadmium. This means that because cadmium is so harmful to the body, excessive exposure to it might result in a variety of health issues. Despite being uncommon, this test is recommended by medical professionals who have major health issues. The test is typically given to employees who make cadmium goods or to people who have been exposed to the metal significantly.