Dopamine given in acute CHF does not act on which of the following receptors

Dopamine is given at the dose of 2 - 10 μg / kg / min in acute CHF, and dopamine acts on α1 receptors only at doses > 10μg / kg / min Dose Receptors Action < 2 μg / kg / min D1 Renal vasodilation 2 - 10 μg / kg / min β1 Cardiac stimulation > 10 μg / kg / min α1  Vasoconstriction