GI System Flashcards

1
Q

physcial exam

A

inspect, auscultate, percuss, palpate

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2
Q

absent/dec bowel sounds

A

inflamm, late bowel obstruction

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3
Q

hyperactive bowel sounds

A

gastroenteritis, early bowel obstruction,

NG can mimic (shut off suction to auscultate)

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4
Q

physical exam- monitor

A

severe abdom pain, prolonged vomiting, blood while vomiting, tarry stool, fever, htn, tachycardia

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5
Q

CBC- Hbg

A

12-16 F and 14-18 males g/dL
reflects blood vol
dec= blood/Gi loss
inc+ dehydration, chronic respir distress

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6
Q

CBC- Hct

A

37-47% F and 42-52%
reflects blood vol
dec= blood/Gi loss
inc+ dehydration, chronic respir distress

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7
Q

CBC-WBC

A

5-10,000 mm^3
inc- infection, steroid meds, appendicitis
dec= immunocomp, cancer

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8
Q

K+ and Na levels

A

k- 3.5-5.0

Na- 135-145 mEq/L

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9
Q

Fecal occult blood test

A

suspect if Hbg or Hct low

false-positive- iron, lrg amnt red meat digestion, recent nose bleed, vigorous excercise

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10
Q

CT scan considerations

A

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

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11
Q

MRI considerations

A

magnet
check metal- rods, pacemaker, aneurysm clip
NPO if abdomen concerns

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12
Q

age r/t changes

A
min effects on Gi function
conspitation
heartburn- relaxation lwr es
tooth loss
slower perstalsis- loss sm musc tone
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13
Q

stomatitis

A

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

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14
Q

GERD

A

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

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15
Q

peptic ulcer dis- types, cause, patho

A

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

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16
Q

peptic ulcer dis- manifestations/management, complications

A

manif- burning pain, worse when hungry/fasting (duodenal)
gastric- worse when eating, pain
management- diagnosed during upper endoscopy, lab,radiological tests
lab- h-pylor, stool antigen testing, CBC (elevated WBC, dec Hbg, Hct), positive fecal occult blood test
upper GI endoscopy preferred
meds- pain relief, ulcer healing, acid suppression, therapy for h-pylori
monitor I+O, smoking cessation, NG tube for decompression (eliminate caustic blood)
complications- fluid shift, dec Na and K

17
Q

NG tube placement

A

nose, ear, xiphoid process + 6 in
check placement w/ xray/imaging, ph paper test < 4, Co2 gas detection, WHOSH test(20 mL air into tube and listen) , visual assess of placement

18
Q

Sm/ Lrg intestine function

A
sm- dig/ absorp nutrients
protein, carbs, fat 
lrg- absorp water, fluid/electrolyte reaborb/elimin
*loss function 2-3 days after surgery
     use NG tube for decompression
19
Q

inflamm bowel dis- manif- epidem-patho

A

incl crohn’s, ulcerative colitis
manif- weight loss, fever, malnutrition, oral ulcerations
epidem- 1.4 million
patho- cause unknown
linked genetic predisposition (autoimm), environmental conditions, defects in immune regulation

20
Q

crohn’s dis

A

affect entire gi tract
inc risk- small bowel cancer, absess/fistual, peritonitis (inflamm abdom wall), adhesions/narrowing lead obstruction/impaired absorp, fluid/electrolyte imbal, abdom pain RLQ
common- terminal ileum and colon
transmural (across wall) can penetrate
diarr less severe
pain worse, blood less common stool
noted to skip lesions w/ normal appearing bowel btw lesions

21
Q

ulcerative colitis

A

affects Lrg intestine (mucosa and sub-muc)
inc risk colon
diarrh common
blood, mucus, pus common
abdom pain/ tenderness in LLQ
tenesmus- spasm anal sphincter (constant feeling need empty bowels)

22
Q

IBD management

A

periods remission/exacerbation
rest bowels (no lax) control inflamm
stress control
meds( immuno suppr, cortical steroids) surgery, correct nutritional deficits, fluid/electrolyte balance
total parenteral nutrition (TPN) via central line
complications- bg lvls, correct position line, electroly imbal
low ruffage diet- low residue (fiber)= dec effort digestion, avoid lactose
risk dec musc mass, immune system, poor wound healing

23
Q

IBD complications/ surgical management

A

comp- fistulas/abscess w/ crohns
short bowel syndrome- dec absorp
chronic abdom pain
surgical management- if meds don’t work or run into complications

24
Q

total parenteral nutrition

A

TPN
protein, CHO, fat, minerals, electrolytes, vitamins
bypasses normal digestion
nurse considerations- correct placement line, sterile dressing change, verify nutrient order, monitor bg levels

25
Q

Diverticulitis- epidem, patho, management, complications

A

epidem- small herniation in GI tract (often colon)
common western industrialized societies and older ppl
patho/manif- extraluminal “outpouching”
diverticulosis- NONinflammed diverticula
management- uncomplicated -antibio
lax and enemas avoided, pain meds, monitor I+Os, and CBC/ electrolytes
complications- perforation, fistula/ abscess formation, bowel obstruction, bleeding, inflamm (can result in fistula to o/organs)

26
Q

appendicitis- epidem-patho-manif- management

A

abdomin pain RLQ
epidemi- acute inflamm of vermiform appendix
common in 10-19yr olds
* if occur in adult more likely rupture
patho- result foreign body blocking the opening leads to inflamm/infection
manif- elevated WBC, fever, tachycardia, n/v, peritonitis (bowel contents in abdom) if rupture
management- scope or open, meds- antiemetics ,antipyretic (dec fever)
avoid lax/enemas

27
Q

mechanical v functional intestinal obstruction- care and manif

A

mech- tumor/food
functional- interrupts/ slower peristalsis
care- NG tube, I&Os, iv analgesics, iv fluid, bowel tones
manif- n/v, abdominal pain

28
Q

bowel surgery- after surgery care

A

create stoma
trtment chronic ulcer, obstructions, tumors
can be reversed
after surgery- low/ semi-fowlers position, TPN, or iv fluids, NG tube, daily weights, I&Os, bowel sounds, wrk from fluid- low residue diet (avoid raw fruit/veg and seeds)

29
Q

liver function

A

blood storage, blood filtration, production bilirubin, syn clotting factors, removal clotting factors
metab carbs, fat and protein
detoxify blood (Kuppfer cells)
storage vitam A,D,E,K and Fe

30
Q

cirrohsis- cause, patho, manif

A

cause- hep C, alcoholic liver dis and NASH non alcoholic fatty liver dis
patho- chronic dis causes cell destruction and fibrosis hepatic tissues
manif- dec liver function (inc AST/ALT released w/ cell death)
ascites= low albumin- leak fluid
portal htn w/ varices
hepatic encephalopathy- confusion, elevated ammonia, change motor fun, abnormal sleep cycle, coma
remove ammonia w/ lactulose
coagulopathy
hepatorenal syndrome (HRS)
spontaneous bacterial peritonitis
jaundice- excess bilirubin

31
Q

cirrohsis- management

A

lab/diag testing
withhold hepatoxic meds
Na restriction or diuretics use w caution (used trt edema/ascites but pull fluid frm vascular system and can cause hypovolemia (dec bp))
lactulose admin (titrate)
monitor I&O, nutr supp
TIPS trans jugular intrahepatic portosystemic shunt
(temporary bypass vascular system liver ex. hepatic/portal veins) used trt portal htn

32
Q

biliary disorders

A

inc gallbladder and bile ducts
bile breaks down fat
system transports bile frm liver to gallb and the sm intestine

33
Q

cholecystitis

A

gallbladder dis
inflamm frm obstruction bile flow
manif- none or RUQ pain, fever, tachycardia, cramping,
assoc w/ fatty meals, common females 45-50
management- antib, food avoidance
trtment- surgery (cholecystectomy)