norepinephrine

IPA/ˌnɔːrepɪˈnefrɪn/
IPA/ˌnɔːrepɪˈnefrɪn/

norepinephrine — noun

1. a natural substance your body creates, acting as both a hormone and a brain chem

1.名詞C1
釋義

a natural substance your body creates, acting as both a hormone and a brain chemical. When you feel stressed or your blood pressure drops very low, norepinephrine helps bring your heart rate and blood pressure back to normal levels.

例句

The nurse explained that norepinephrine helps keep the heart beating steadily during a medical emergency.

collocation: helps keep heart beating

After the car crash, paramedics gave Minh norepinephrine to raise her dangerously low blood pressure.

同義詞

用法筆記

Often discussed alongside epinephrine (adrenaline), which has a stronger effect on the heart and is commonly used to treat severe allergic reactions.

常見錯誤

❌The doctor gave me norepinephrine for my bee-sting allergy.
✅The doctor gave me epinephrine for my bee-sting allergy.
💡norepinephrine is not the standard treatment for allergic reactions; epinephrine (adrenaline) is used for that purpose.
❌Norepinephrine and adrenaline are the exact same thing.
✅Norepinephrine and adrenaline are related but different hormones.
💡they have different roles and potencies in the body.