local anaesthesia
Học thuậtThân thiện
Definition
Noun: * Local anaesthesia is the loss of sensation (feeling) in a specific, limited area of the body. This is achieved by administering a drug (a local anaesthetic) that temporarily blocks nerve signals in that particular region, allowing a medical or dental procedure to be performed without causing the patient general pain, while the patient remains conscious and aware.
Usage
- Local anaesthesia is used for minor surgical procedures, dental work, or biopsies where it is preferable or safer for the patient to be awake.
- The term is commonly used in medical contexts by doctors, dentists, and nurses.
- It contrasts with , which renders the patient completely unconscious.
Examples
- The dentist administered local anaesthesia before filling the cavity.
- The minor skin surgery was performed under local anaesthesia.
- Local anaesthesia is often preferred for outpatient procedures due to its faster recovery time.
Advanced Usage
- "to be under local anaesthesia": to be in the state of having had a local anaesthetic administered.
- The patient was under local anaesthesia but could hear the surgeon talking.
- The concept can be extended metaphorically to describe a situation where the effects of something are confined to a specific area.
- The economic downturn was severe but, thanks to government intervention, it remained in a state of local anaesthesia, not spreading to other sectors.
Variants and Related Words
- Local anesthetic (noun): The drug used to induce local anaesthesia (e.g., lidocaine).
- Locally (adverb): In a way relating to a particular area.
- The drug is applied locally to the wound.
- Regional anaesthesia: A type of anaesthesia that blocks pain in a larger region of the body (e.g., an entire limb), such as an epidural.
Synonyms
- Local anesthetic (when referring to the drug itself, not the state)
- Nerve block (a specific technique of local anaesthesia)
Antonyms
- General anaesthesia
- Systemic analgesia (pain relief affecting the whole body)
Related Phrases/Idioms
- Numb the area: A common, non-technical way to describe the effect of local anaesthesia.
- The doctor will first numb the area with an injection.
Noun
- loss of sensation in a small area of the body (as when a local anesthetic is injected for a tooth extraction)