Greetings to everyone. Please like to get responses on this inorder to have a bigger picture. In my country mostly what's done is just the forward grouping using the anti-sera to do and confirm the patient blood group and when that's done they just sent out of the hospital to collect blood in a donor centre ( laboratory) and in the donor centre sometimes what's done in still the forward Grouping without doing the reverse blood grouping. The question will look like this, what's the importance of always doing the forward and reverse blood grouping before transfusing blood? Or even when the hospital do the forward grouping it's advisable for the laboratory to do the reverse blood grouping to confirm the blood group of the that same patient? In this same situation doing the forward and reverse blood group is this important in the patient setting or donor setting? 

Am going to be grateful with responses. 

In the UK a unit of blood would NEVER be sent out to a hospital without a full (and matching) ABO type - both forward and reverse.

We would also do everything possible to ensure that, if the forward and reverse ABO types of any patient do not match, we find out why before transfusion.

An ABO mismatch is probably the most common cause of fatal haemolytic transfusion reactions (although, thank goodness, they are NOT common), and this is why we will always go "the extra mile" to try to prevent any such situation.

Thanks, meaning both reverse and forward grouping should be done in the donor and recipient right? 

YES!

In our lab, we do 30 patients ABO typing daily in average. In those tests we will find out forward and reverse typing mismatch at least once daily. Maybe because we tested patients' sample, the incidence is higher than donors', but just as Malcolm said it is definitely necessary to do forward and reverse typing and make sure they are matching.

We have a policy where we do not perform a cross-match on the first sample of a patient. This sample gets a full group card (forward and reverse group) and a confirm ABD card.

The next sample, and any future samples, only have a confirmation (forward group). These 2 samples must be bled at least 10 minutes apart so that there is less chance that the incorrect patient is bled twice.

Our blood donors get the full group card and a donor ABD card (Dvi+) on first donation. Further donations just get the donor ABD card

Thanks 👍 👍 👍