What is everyone's process for Weak D testing on cord blood if there is a positive DAT?   

Suggestions made in our system:

Continue with the Weak D testing and use reaction strength to differentiate a positive result from the positive DAT.

Don't perform Weak D, report as RH neg.

Don't perform Weak D, report as RH indeterminate suggest retest in 4 months.

Report as "Unable to determine Rh at this time."

Brenda Hutson

We performed weak D testing regardless of the DAT result as long as the Rh control is negative. 

If the Rh control is positive, we would perform EGA treatment if the mom need Rhogam.  Otherwise, we would request for heelstick or result as Rh indeterminate.   

Rh Undetermined.  However, with a mild heat elution you might be able to obtain a valid result, as long as the DAT is not very strong.

If the Rh control is negative, we report it. It the control is positive - Rh type is undetermined.

We report the ABORH as "corrected" with a footnote of the ABO result and that the RH couldn't be deterimined at this time(submit another sample in a couple of weeks) due to the positive DAT.