The nurse is caring for a client receiving a norepinephrine infusion. Which of the following statements accurately describes the pharmacological action of norepinephrine?
A. Norepinephrine primarily acts as a neurotransmitter in the central nervous system, regulating mood and emotions.
B. Norepinephrine is a hormone produced by the adrenal glands, primarily involved in the regulation of blood pressure and heart rate.
C. Norepinephrine is a neurotransmitter released by postganglionic sympathetic neurons, exerting effects on target organs via adrenergic receptors.
D. Norepinephrine is a hormone secreted by the posterior pituitary gland, responsible for the regulation of water balance and bloo pressure.