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Prewarm Technique


Ficin

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Good Morning!!

 

Looking for some insight from blood bankers........ I have noticed that procedures vary by institutions for the prewarm technique. Some facilities use potentiators (PEG, LISS) with the prewarm method, some do not use any potentiators for the prewarm method. The Technical Manual does not say either way.

 

Any thoughts??

Thanks,

 

Ficin

 

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One can use any of the manual tube techniques, as long as one is comparing apples to apples - if one's basic (normal) test uses a potentiator, one must use it in the pre-warmed verison. As Malcolm suggests, sometimes a plain vanilla saline antiglobulin test is the way to go, provided the "cold" reacts in that phase.

Edited by exlimey
Typo/clarification
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On 4/10/2017 at 11:03 AM, SMILLER said:

In general, we do not use potentiators if we go to a prewarm.

Scott

 

9 hours ago, Sherie Bruns said:

We do not use potentiators during a prewarmm.

Presumably the operators check that the troublesome reactivity that they are trying to circumvent is actually present in the unpotentiated test ?

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  • 2 weeks later...

We do use potentiator with the prewarm.  We also use it when testing our WAHA patients.  I know there are many labs who do not use it for WAHA workups.   I was told that in the end the potentiator really only reduced your incubation time.  If this is incorrect someone please enlighten me :)

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