Levothyroxine IV to PO conversion

[rxkrafted]

I am currently studyin for the 2016 NAPLEX and i came across a discrepancy with the RxPrep resource. I've always learned in school and from the 2014 RxPrep that the conversion was 1:2. The 2016 RxPrep says that the conversion is 0.75:1. I tried looking into the ATA guidelines as well but could not find any information that states this change. Could someone clarify this for me please?

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[Pharmacyjoedotcom]

Either one is fine for a few days.

 

[bacillus1]

We are conservative and do 50% reduction. If a pt gets a bit of a lower dose for a few days, it's OK.

 

[sakigt]

My director says its ok to even hold it for a few days d/t half life. *rolls eyes* I think each IV vial is like $100