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The page below is a sample from the LabCE course Rh-Negative Female with Anti-D at Delivery: A Case Study. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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A "standard vial" of RhIg contains 1500 IU (300 µg) of IgG anti-D (one µg = 5 IU). Trace amounts of IgA are also present.

Other red cell antibodies may be present, depending on the IgG antibodies present in the RhIg donors.

Several manufacturers offer mini-doses, which are often 1/6 of the standard vial (i.e., 250 IU or 50 µg).

For exact constituents, each manufacturer's current product insert should be consulted.