GI System Flashcards
physcial exam
inspect, auscultate, percuss, palpate
absent/dec bowel sounds
inflamm, late bowel obstruction
hyperactive bowel sounds
gastroenteritis, early bowel obstruction,
NG can mimic (shut off suction to auscultate)
physical exam- monitor
severe abdom pain, prolonged vomiting, blood while vomiting, tarry stool, fever, htn, tachycardia
CBC- Hbg
12-16 F and 14-18 males g/dL
reflects blood vol
dec= blood/Gi loss
inc+ dehydration, chronic respir distress
CBC- Hct
37-47% F and 42-52%
reflects blood vol
dec= blood/Gi loss
inc+ dehydration, chronic respir distress
CBC-WBC
5-10,000 mm^3
inc- infection, steroid meds, appendicitis
dec= immunocomp, cancer
K+ and Na levels
k- 3.5-5.0
Na- 135-145 mEq/L
Fecal occult blood test
suspect if Hbg or Hct low
false-positive- iron, lrg amnt red meat digestion, recent nose bleed, vigorous excercise
CT scan considerations
radiographic, use contrast dye
check kidney function (creatinine lvl) if impaired= give extra fluid or dec dose
shell fish allergies- can pretreat or give more fluid
MRI considerations
magnet
check metal- rods, pacemaker, aneurysm clip
NPO if abdomen concerns
age r/t changes
min effects on Gi function conspitation heartburn- relaxation lwr es tooth loss slower perstalsis- loss sm musc tone
stomatitis
ulceration mouth
upper gi tract more prone trauma *pt induced
risk factors- thrush, chem/radiation therapy, vitamin def, chronic dis (kidney/inflamm bowel)
epidemiology- inflamm condition affecting orla mucosa, dentition
occurs 40% chemo pati
patho- “oral mucositis”
painful inflamm/ulceration lining of mouth
management- assessment oral cavity b,d,a chemo and radiation, rinse mouth norm saline/ Na bicarb, lidocaine suspension, diet modif, chart I/O
complications- dysphagia/ odynophagia (painful swallowing), xerostomia
GERD
Risk- girls, preg, obesity, lrg meals, tight clothing, ng tubes, excessive acid secretion
patho- pressure grad diff btw stomach and LES, irreg LES function
can aspirate Gi contents if not controlled
epidem- common western countries, 10-20%
management- pH monitoring, esophageal manometry/motility testing (most effective)
esophagogastrodudodenoscopy (EGD)
meds (PPI, H2 blocker, antacids)
head elevated > 30
cessation alcoh/smoking, weight loss, stress reduc, smllr meals, avoid dietary irritants
peptic ulcer dis- types, cause, patho
types- duodenal 80%
chronic w/ periods exacerb
gastric- 20% common lesser curvature stomach
causes- h- pylori (secrete toxin destroys stomach mucous protection= infection)
Nsaids, exposure irritants
patho- gastroduodenal mucosa destroyed by gastric acid and pepsin