What effect does administering Noradrenaline have on blood pressure?

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It raises blood pressure primarily by stimulating beta-adrenergic receptors.It lowers blood pressure due to its exclusive action on alpha-adrenergic receptors.It reduces cardiac output and alleviates slow heart rate.None of the listed effects occur.No effect.

Explanation

Noradrenaline primarily increases blood pressure through its action on beta-adrenergic receptors, leading to vasoconstriction and elevated vascular resistance. The other options incorrectly attribute its effects or describe unrelated outcomes.