Welcome to HCM,
You have given incomplete information,I presume you have given values which are abnormal but every investigation needs to be correlated clinically but I will try to explain importance of each one.
RDW is upper end of normal range seen in Anaemia
and due to size variation of RBCs, Your WBC count
is increased which may point to presence of infection and your Eosinophil
is 8% slightly raised indicate allergic condition.
is more than desirable that is German measles
(Rubella) is positive indicate past infection with this virus.
There is nothing serious but for proper assessment please visit your treating doctor.
Please Take care