How long does my client have to interrupt breastfeeding if she is administered this radioactive substance? The scan is to determine whether she has thyroiditis or Graves disease. The dose is usually 300 microcuries (0.3 millicuries) but they can give 150 microcuries (0.15 millicuries) if necessary...the test will just take longer. She would prefer to use the smaller dose, of course. Medications and Mother's Milk 2014 says that a dose of 0.4 millicuries would require complete cessation of breastfeeding or until counts are baseline. It seems cost-prohibitive to send breastmilk to a nuclear medicine lab if the answer is out there somewhere.
If the half life is 13.2 hrs, then 5 half lives would be 2.75 days but it seems that the cessation time is dose dependent. The client is having the test done Monday, Aug 3 so I am looking forward to your answer.
If the half life is 13.2 hrs, then 5 half lives would be 2.75 days but it seems that the cessation time is dose dependent. The client is having the test done Monday, Aug 3 so I am looking forward to your answer.
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