what is the evacuating area of the body
rectum and some of the sigmoid colon
Pt definition of constipation
straining to stool
passage of hard dry stool
small stools
incomplete bowel evacuation
bloating/decreased freqeuncy
Factors that can affect constipation
diets low in calories, carbs, and fiber
inadequate fluid intake
sedentary life styles
avoiding the urge to empty the bowel
factors that can affect hemorrhoids
constipation/diarrhea
prolonged sitting/standing
pregnancy
heavy lifting with straining
Side effects of unresolved constipation
cardiovascular problems
blood pressure surge
cardiac rhythm disturbances
rectal prolapse
Contraindications for self treatment of constipation
sudden changes in stool
recent weight loss
blood in stool
no success with previous OTCs
Contraindication for self care of hemorrhoids
Inflammatory bowel disease
polyps
fissures
abcesses
Life style modifications to suggest for constipation
increase natural fiber intake
exercise
increase fluid intake
The ideal laxative would:
What questions should you ask before making a recommendation for constipation meds? (7)
What type of constipation meds do we have that we can recommend (based on MOA)?
Bulk forming
emollient
lubricant
saline
hyperosmotic
stimuland
Bulk forming agents onset of action
24-36 hours up to 72
What types of patients are best suited for bulking forming laxatives
pts that can’t add dietary fiber
postpartum women
older pts
pts with colostomies, IBS, or diverticular disease
ADEs with bulk forming agents
Abdominal cramping and flatulance
esophageal obstruction
acute bronchospasm (from inhaling the dry powder)
Bulking forming agent drug interactions
may bind other oral meds especially tetracyclines so separate dose by 2 hours
Bulk forming agent contraindications
Pts with intestinal ulcerations, stenosis, or disabling adhesions
pts with restricted fluid intake
Precautions in bulk forming agents
children <6
pts at risk for hypercalcemia (HIV elderly, malignancy, or renal disease)
Diabetic pts need sugar free options
phenylketonuria’s should avoid the sugar free agents
How quickly do emollient agents produce a BM?
24-72 hours but up to 5 days
What are emollients best used for?
target prevent not long standing or active constipation
Emollient common uses
prevents painful dedication and allows pt to avoid straining to stool
commonly added in colostomy prep
Side effects of emollients
overdoses can cause weakness, sweating, muscle cramps, and irregular heart beat
diarrhea and cramping
increases absorption of mineral oil
do not use if N/V, signs of appendicitis or undetermined abdominal pain
Lubricating agents onset (oral/rectal)
6-8 hours for oral admin
5-15 minutes after rectal
How do lubricating agents work?
softens the fecal contents by coating them and preventing absorption of water from colon
Lubricating agent warnings/precautions/CIs
generally discouraged
never use in children <6
can cause loss of fat soluble nutrients
can reduce absorption of anticoagulants, contraceptives, and digitalis
best for short term use