Which applications, either for diagnostic purposes or for therapeutic purposes, involve radioactive materials placed in the body? Check all that apply.

radiopharmaceuticals

MRI

laser eye surgery

external beam radiation therapy

lithotripsy

brachytherapy

radioisotope imaging

Radiopharmaceuticals

Brachytherapy

Radioisotope imaging.

Radiopharmaceuticals

Brachytherapy

Radioisotope imaging.

Explanation:

All the above choices marked involve the introduction of radio isotopes into the body of a patient internally. The dosage given internally is decided based on the requirement of the patient.

Brachytherapy is also known as internal radiation therapy. Radioactive materials have the property to damage the cancer cells. So when these are locally induced to a cancer patient, they damage the cancer cells, causing very little harm to the other healthy, normal cells. Depending on the requirement, Iodine, Palladium, Cesium, Iridium and such other radioactive elements are used for the treatment.

It is not as damaging as chemotherapy. Chemotherapy will induce the effect of the drugs on the entire body.