Last exam presentation GI and musculoskeletal Flashcards
Stomach acids
DIGESTIVE ENZYMES (HYDROCHLORIC ACID, PEPSINOGEN)
PH: 1-4 – MOST ACIDIC FLUID IN THE BODY
Six Functions of the GI System
INGESTION
MECHANICAL PROCESSING
DIGESTION
SECRETION
ABSORPTION
EXCRETION
Stomach protection against acidity
Thick mucous
Bicarbonate
FURTHER NEUTRALIZED UPON REACHING THE DUODENUM, BY BICARBONATE FROM PANCREATIC &
BILIARY (LIVER AND GALLBLADDER) SECRETIONS
Gastroesophageal reflux disease
GERD
Caused by excessive hydrochloric acid that tends to back up, or reflux, into the lower esophagus
S/S of GERD
HEARTBURN
REGURGITATION (FOOD COMES BACK INTO YOUR MOUTH FROM THE ESOPHAGUS)
THE FEELING OF FOOD CAUGHT IN YOUR THROAT
COUGHING
CHEST PAIN
PROBLEM SWALLOWING
VOMITING
SORE THROAT AND HOARSENESS
Teaching GERD
MAINTAIN HEALTHY WEIGHT
AVOID LAYING DOWN AFTER MEALS / EATING LATE AT NIGHT
ELEVATE HEAD OF BED BY 6 INCHES
AVOID IRRITATING FOODS, SUCH AS FAT, CHOCOLATE, CAFFEINE, SPEARMINT/PEPPERMINT
EXERCISE
QUIT SMOKING
LIMIT ALCOHOL
AVOID NSAIDS
Peptic ulcer disease PUD
PUD is caused by the breakdown of GI mucosa by pepsin, in combination with the caustic effects of hydrochloric acid
PUD IS THE MOST HARMFUL DISEASE RELATED TO HYPERACIDITY BECAUSE IT CAN RESULT IN BLEEDING ULCERS, A LIFE-THREATENING CONDITION
common causes PUD
FAMILY HISTORY,
SMOKING,
CAFFEINE,
NSAIDS,
STRESS,
HELIOBACTER PYLORI
stress related mucosal damage
COMMON CONDITION THAT CAN OCCUR IN HOSPITALIZED PATIENTS LEADING TO PUD.
THUS, MANY POST- OPERATIVE OR CRITICALLY ILL PATIENTS RECEIVE MEDICATION TO PREVENT THE FORMATION OF A STRESS ULCER, WHICH IS ALSO CALLED PROPHYLAXIS.
Gastric ulcer
OCCURS IN THE STOMACH
LESS COMMON
WOMEN OVER 60 Y/O
NSAID, STRESS RELATED
GENERALLY AGGRAVATED BY FOOD/EATING
LOSS OF APPETITE, WEIGHT LOSS AND VOMITING ARE COMMON
REMISSIONS ARE INFREQUENT OR ABSENT
MAY CAUSE HEMATOCHEZIA OR MELENA
Duodenal Ulcer
OCCURS IN THE DUODENUM
MORE COMMON
MALES 30-50 Y/O
H-PYLORI ASSOCIATED, STRESS
GENERALLY AGGRAVATED BY HUNGER AND DISAPPEARS WITH INGESTION OF FOOD
GNAWING OR BURNING UPPER ABDOMINAL PAIN OCCURRING 1-3 HOURS AFTER A MEAL
MAY CAUSE HEMATOCHEZIA OR MELENA
Heliobacter pylori infection
Heliobacter pylori bacteria infects the stomach, attacking the lining that protects the stomach.
H pylori treatment
must be
proton pump
antibiotics
if used
pepto
Must be tested because uninfected patients treated with this therapy will have worse outcomes
*Combination therapy
1. Proton pump inhibitors or H2 receptor antagonist
- Antibiotics such as: Amoxicillin (), Clarithromycin (), Metronidazole (), Tetracycline (,)
IF A PPI IS USED ***Need to use two antibiotics to ensure eradication (7-14 day regimen)
Pepto-Bismol – this is sometimes used to inhibit bacterial growthand prevent the H. pylori from adhering to gastric mucos
H pylori
produces
makes
active
PRODUCES UREASE – NEUTRALIZES STOMACH ACID FOR SURVIVAL
MAKES CHEMICALS CALLED ADHESINS ALLOWING IT TO STICK TIGHTLY TO GI MUCOSA
CAN REMAIN ACTIVE FOR LIFE IF NOT TREATED PROPERLY
Antacids
Used to neutralize stomach acid, elevate pH, and reduce the symptoms of heartburn. Elevated pH also inactivates pepsin, a digestive enzym
anti ulcer mediations
ANTACIDS
H2-RECEPTOR ANTAGONISTS
PROTON PUMP INHIBITORS (PPI)
MUCOSAL PROTECTANTS
ANTI-FLATULENT
Antacids
relives
otc
may contain
forms
Relieves heartburn, acid indigestion and upset stomach
many otc medications avaiable- calc carbonate
almunim hydroxide, magnesium hydroxide
may contain simethicone-anti flatualnt
comes in variety of forms- tablet, chewable,capsule or liquid
Anatacid
taken
do not
contradicted
med-
Taken 3-4 tomes dauly
do not administer 1-2 hours of other meds
contracidicated w/ preexisting kidney disease
med-calcium carbonate
H-2 receptor agnoists
famotdine
moa
Block histamine’s action at the H2 receptor of the parietal cell, thus reducing the production of hydrochloric acid
famotidine
treats
otc
taken
liver/kindey
contact
treats gerd,pud,erosive esophagitis, hypersecratory conditions
OTC is for heartburn and sour stomach
taken 15-60 mins before eating or drinking stuff that causes heartburn
liver/kideny disease may require dose adjustment
contact provider imedatly w/ increased pain, bleeding or coughing/vomiting blood
Proton pump inhibitor
pantoprazole
moa
Binds to the hydrogen-potassium ATPase enzyme system of the parietal cell, also referred to as
the “proton pump” because it pumps hydrogen ions into the stomach. PPIs inhibit the secretion of
hydrochloric acid, and the antisecretory effect lasts longer than 24 hou
Pantoprazole
treats
given w/
delayed
use of
long term
treats damage from gerd/ other conditions where stomach produces too much acid
given w/antiboitocs
delayed release can be taken w/ w.out food
use of alcohol, saids, or food that cause gi irritation should be discouraged
long term therapy may cause hypomagnesema
mucosal protectants
sucralfate
mao
Locally covers the ulcer site in the GI tract and protects it against further attack by acid, pepsin, and bile salt
sucralfate
forms
minimally
administer
may cause
caution
forms barrier coat over ulcer-protect ulcer from stomach acid
minimally absorbed by gi tract
administer on empty stomach-2 hours after or 1 before meals
may cause constipaton
caution/ patients w/ chronic renal failre or dialysis d/y impaired absorption of almunim
anti-flatulant
simethcone
mao
Works by altering the elasticity of the mucous-coated gas bubbles, which cause them to break
into smaller bubbles, thus reducing pain and facilitating expulsion
simethicone
treats
incoprorate
added
taken
shake
treats symptoms of gas/pressure/fullness/bloating
incorpatre other measures, like position changes, ambulation, no straws, no beans
often added to antacids
taken 4x a day
shake liquid formula before administering
diarrhea
Passage of 3 or more loose or liquid stools per day
causes of diarrhea
bacteria
viruses
parasites
meds like antibiotics,cancer,antacids w/ magnesium
food intolerances and sesntivtes
diseases that affect colon,such as chrons disease, irritable bowel syndrome
absorbents
bismuth subsictylate
moa
Work by coating the walls of the GI tract and binding the causative bacteria or toxin for elimination from the GI tract through the stool.
bismuth subsalicylte
take
safe
may cause
contains
discontinue
take as directed
safe over 12 years
may cause black/ darkened tongue and dark stool
contains aspirin
discntue if tinnitus occurs
anticholinergics
hyoscyamine
moa-works on
inhibit
decreses
Works on the smooth muscle of the GI tract to
inhibit propulsive motility and
decreases gastric acid secretion (decreases stomach/intestinal motion and GI secreti
hyoscyamine
s/e
dizziness
drowsiness
dry mouth
opioid like medication
loperamide
moa
Works by decreasing the flow of fluids and electrolytes into the bowel and by slowing down the
movement of the bowel to decrease the number of bowel movements.
loperamide
take
avoid
may cause
contrindicated
may cause
take as directed
avoid alcohol and depressants
may cause drowsiness
contraindicated under 2 years
may cause abnormal heart rhythm
probiotics
lactobavillus
moa
Helps replenish normal bacterial flora in the gastrointestinal tract.
lactobacillus
used
often
s/e
safe
used for prevention of diahhrea
often used concurrently w/ antibiotics to prevent side affects
s/e- mild gas and bloating
safe in children
constipation
less then 3 bowel movements in a week, stools are hard dry and lumpy, may be difficult to pass,