Use and Abuuse Of Drugs Flashcards
Drug
An externally administered substance which modifies or affects chemical reactoons in the body
Depressants
Slow down the transmission of nerve impulses e.g. alcohol
Stinulants
Speed up the transmission of nerve impulses e.g. caffine, nicotine
Pain killer
Supress the part of the brain rwsponsible for sense of pain and block transmission of pain
Narcotics
Produce a sense of euphoria or well being often associated with drug dependance e.g. heroin
Defination of drug in medical profession
Refer to a medicine that can cure or arrest diseases, relive symptoms,ease pain and provide other benifits to the bodyl
Penicillin
- extraxted from blue green mojld called penicillium
- used as treatment for bacterial infections as it can stop the growth of bacteria without damging the tissues
Aspirin
- pain killer
- reduces fever,inflammation
- blcoks transmission of pain signals from brain to the spinal cord
- DRAWBACK: irritation to stomach walls
- for under 12 years not recommended as causes fatal liver and brain damage
Drug abuse
Refers to those substances upon which a person may become dependant
Drug addiction
Imprecise term covering anything from intense habitual cravings for caddine and nicotine to physical and psycologival dependance on more potent drugs such as heroin
Drug dependance
Compulsive use of drug rssulting in physical and psycological dependance.
Physical dependance
Body adapts to a drug and increases its tolerance to the drugs effects. This leads to larger and uncontrolled doeses pf the drug to achieve the originaleffect. Has sever withdrawal suptoms if not taken.
Psycological dependnce
Involves intense mental cravings for a drug if a drug is unavailable or withdrawn
Short term affects of ALCOHOL
- feeling of relaxation and well being
- CNS deprressant, reducing anxiety, tensions and inhibitions
- dilates small blood vessels, particulary those in skin leading to flushing and feeling of warmth
Signs and symptoms of alocholo short tern
- Slirrsd speech
- Nausea and vomiiting
- Uncoordinated mkvemnt of muscles so cant walk properly.
- slowding down body reaction time as slows down transmission of neve kmoulses involved int wacting to emergency situatio . More rusk of accidents
- Voilent and agressive behabious
- Loss of conciousdness if alcojol lebel continue to rise
- Perskns comcentration and judgemnt are jmpaired
- double vision and loss of balance