Cathartics Flashcards
1
Q
what is bulk cathartic?
A
one stimulating bowel evacuation by increasing faecal volume
2
Q
what is lubricant cathartic?
A
softening of feces and reducing friction bet them and intestinal wall
3
Q
what is saline cathartic?
A
increasing fluidity of intestinal contents
4
Q
what is stimulant cathartic?
A
directly increases motor activity of intestinal tract
5
Q
applications of saline cathartic?
A
- ease defecation in patients w rectal disorder
- avoids rise in BP during defecation in patients w HBP
- relieve constipation
- remove solid material from GI tract during diagnostic studies
6
Q
describe sodium biphosphate
A
- chemical compound w sodium and phosphate
- used as a laxative and ph buffer
- colourless crystals
- insoluble in alcohol
7
Q
describe potassium sodium tartrate
A
- colorless to blue white salt
- soluble in water and slightly soluble in alcohol
- used as laxative, ingred in Fehling reagent and Biuret reagent
- process of silvering mirrors and breakup emulsions
8
Q
describe magnesium hydroxide
A
- an organic comp’d
- milk of magnesia as a suspension
- administered as suspension/emulsion
- low solubility in water
- used as laxative and antacid
9
Q
describe magnesium sulphate
A
- derivative of magnesium hydroxide
- in the form of injection it is used as a CNS depressant in treatment of convulsions and comas
- over treatment can cause respiratory paralysis, cardiac dpression
