Medication Names
Prototype Med |
Radioactive Iodine |
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Iodine 131 |
ACTION: The thyroid gland absorbs radioactive iodine, which gradually destroys thyroid tissues and the function of the thyroid gland.
Therapeutic Use
Hyperthyroidism (Graves’ disease) |
Thyroid cancer |
Adverse Drug Reactions
Hypothyroidism (expected for most clients, but still requires drug thera- py) |
Bone marrow depression (rare) |
Radiation sickness (rare) |
Nursing Interventions
Monitor thyroid function. |
Monitor for indications of thyroid dysfunction (drowsiness, depression, weight gain, edema, bradycardia, anorexia, cold intolerance, dry skin, menorrhagia). |
Monitor CBC and platelet count at baseline and periodically thereafter. |
Monitor for indications of anemia, leukopenia, and thrombocytopenia. |
Monitor for manifestations of radiation sickness (hematemesis, epistax- is, intense nausea, vomiting). |
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Drug Administration
Give orally. |
Obtain a negative pregnancy test before administration. |
Measure baseline vital signs and weight and monitor periodically there- after. |
Dosage is miniscule for thyroid disorders, larger for thyroid cancers |
Initiate radiation precautions for large doses (limited contact, increased fluids, body waste disposal per facility protocol). |
Patient Education
Watch for and report anxiety, drowsiness, depression, weight gain, swelling, slow heart rate, appetite loss, cold intolerance, dry skin. |
Report fever, sore throat, weakness, or fatigue. |
Report bloody vomit, nosebleeds, or severe nausea and vomiting. |
Contraindications
Pregnancy: teratogenic effects |
Lactation |
Precautions
Children prior to puberty |
Interactions
Other antithyroid drugs reduce uptake. |
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