Constipation Flashcards
(25 cards)
What can Laxative abuse lead to
Hypokalemia
Give some examples of bulk forming
Ispaghula husk
Bran
Methylcellulose
What is onset of action of bulk
2 to 3 days
Should you take bulk at night
No
How should you take bulk
With a glass of water
What can bulk lead to
Flatulence, bloating and cramping
What should you do to avoid intestinal obstruction with bulk
Have with water
Give some examples of stimulant laxatives
Bisacodyl
Sodium picosulfate
Glycerol
Docusate (also a softener)
Co danthrumer
Danthrusate
What can stimulants cause
Cramping
When should you avoid stimulants
Intestinal obstruction
What is the onset of stimulants
8 to 12 hours
What do the co- colour the urine
Red
When are the co- used?
Terminally ill patients as they can be teratogenic
Examples of softeners
Docusate (also a stimulant)
Arachnis oil
Methylcellulose
What do softeners do
Decrease surface tension
Onset of action of softeners
12 hours to 3 days
What should you avoid softeners in
Anal seepage
Examples of osmotics
Lactulose, macrogols, sodium and magnesium sulfate
Onset of action of osmotics
2 to 3 days
Which Laxative are used in hepatic encephalopathy
Osmotic
What laxatives are used in opioid induced constipation
Stimulants and osmotics
Which laxatives are used in SPC
Short duration
Pregnancy
Chronic
Bos = bulk, osmotic and stimulant
What laxatives are used in FOC
Faecal impaction
Opioid induced
Children
Os = osmotic
