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PSC: Are IgG and IgG4 the same thing? Do they test different things?

Digestive Health | Last Active: Apr 1, 2020 | Replies (3)
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@sandyjr

I don’t think so. I mentioned to her about the IgG4 and she mentioned it to the doctor and he said that the IgG test had been done and it indicated that she had PSC I believe. So that is why I inquired if there is a difference between the IgG test and the IgG4 test. So she can ask her doctor at this point then if she had the IgG4 test And she can ask for it if she has not. Is that correct.

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Rosemary, Volunteer Mentor | @rosemarya | Apr 1, 2020

@sandyjr, I don't now about the IgG or IgG4 labs, even though I was I was diagnosed with PSC and later needed a transplant. Your daughter, or any patient can and should ask a doctor when there is a question. Her GI or liver specialist will be able to tell her about the difference in the two tests and whether ot not she needs more testing. He shoud be able to explain it in relation to her particular diagnosis and her particular health background.
Will you or anyone be going with her? When is her next appointment?

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