RAST after antihistamines

Started by twinturbo, January 25, 2012, 09:32:03 AM

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twinturbo

January 25, 2012, 09:32:03 AM
Prednisone, ratinidine, Benadryl taken Sunday night. How long to wait until getting RAST done? The usual 5 days?

GingerPye

#1
January 25, 2012, 10:55:31 AM
We're told 3 days, but I don't know about the Prednisone.
DD, 25 - MA/EA/PA/env./eczema/asthma
DS, 22 - MA/EA/PA/env.
DH - adult-onset asthma
me - env. allergies, exhaustion, & mental collapse ...

CMdeux

#2
January 25, 2012, 12:01:06 PM
The prednisone (steroid) is the kicker on this one-- steroids can mess up RAST values for a long time.

Antihistamines don't really have any impact on IgE, so that isn't a consideration (only matters for skin testing).

Call the doc, I think.   :yes:
Resistance isn't futile.  It's voltage divided by current. 

Western U.S.

GingerPye

#3
January 25, 2012, 03:06:45 PM
Yes, I'm not thinking right today.  We are told to stay off for 3 days for the SPT, not the rast.
DD, 25 - MA/EA/PA/env./eczema/asthma
DS, 22 - MA/EA/PA/env.
DH - adult-onset asthma
me - env. allergies, exhaustion, & mental collapse ...
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