Gastric Acid Disorder And Ulcerations Flashcards

1
Q

Dyspepsia where is it located?? What is it? What can it cause

A

Dyspepsia - upper abdominal pain,heartburn,gastric reflux,bloating, nausea and vomiting

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2
Q

Urgent referral -

A
  • Gastrointestinal bleeding
    • Aged 55+
    • Unexplained weight loss
    • Dysphagia
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3
Q

Drug treatment:
Univestigated dyspesia:

A
  • PPI for 4 weeks
    • Test for h.pylori if ppi doesn’t work - treat if positive (can be done without 4 weeks f ppi first)
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4
Q

Functional dyspepsia (investigated but no cause present)

A
  • Test for h.pylori - teat if positive
    • Not infected - 4 weeks of ppi of h2 receptor antagonist
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5
Q

Helicobacter pylori infection =

A

Most common cause of peptic ulcers

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6
Q

Diagnosis

A
  • Diagnose with a urea 13c breath test or stool helicobacter antigen test SAT
    • PPIs should have been stopped 2 weeks before test
    • Antibiotics should have been stopped 4 weeks before test
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7
Q

Treated with triple therapy (ppi and 2 Abx)

A

PPI- Twice daily
Amoxicillin - 1000mg twice daily (use other 2 if penicillin allergy)
Clarithromycin - 500mg twice daily
Metronidazole - 400mg twice daily

For 7 days

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8
Q

Gastro-oesophageal reflux disease:
Increased with:
Which drugs?

A
  • Fatty food
    • Pregnancy
    • Hiatus hernia
    • Family history
    • Stress and anxiety
    • Obesity
    • Drug side effects - (a/b blocker,cab,anti choline raids,bentos,biphosphnates,corticosteroids,NSAID,nitrates,tca)
    • Smocking
    • Alcohol
      Same urgent referral as dyspesia
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9
Q

Offer lifestyle advice first:

A

Healthy eating
Weight loss if obese
Avoid triggering foods
Eat smaller meals
Eat evening meals 3-4 hours before bed
Raising head bed
Smokin cessation
Reducing alcohol consumption

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10
Q

Medical review if taking a drug that exacerbates what? How of uninvestiagted GORD treated? Wb confirmed

A

Medical review if taking a drug that exacerbated GORD
Univestigated GORD Treated the same as dyspepsia
Confirmed GORD treated with 4-8 weeks of PPI

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11
Q

Pregnancy

A
  • Dietary and lifestyle advice
    • Antacid or an alienate
    • Omeprazole or ranitidine
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12
Q

Antacids:
Contain magnesium which acts as a what? Aluminium does what? Calcium does what?

A
  • Magnesium contains antacids - laxatives
    • Aluminium contains antacids - constipating
    • Calcium containing antacid = induces rebound acid secretion
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13
Q

Simeticone
What can alingates and antacid do?

A

Simeticone (antifoaming agent)- added to antacid - relieves flatulence
Alginates and antacids increase the viscosity of stomach content - form a viscous gel (raft ) that floats on the surface of the stomach contents

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14
Q

Antacid interactions =
Which has lowest sodium
Antacids not to be taken with which drugs???

A

Increase the stomachs pH (more alkali)- meaning enteric coated capsules are damaged before reaching the intestine

Check sodium content of antacid - not to be taken with lithium/in hypertension
- Low sodium : co-magaldrox

Antacids not to be taken with other drugs due to imparting absorption: bisphophonates, tetracycline and ciproflloxacin

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15
Q

Ppi

A

omeprazole, esomeprazole, lanzoprazole,rabeprazole

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16
Q

MHRA warning = if PPI

A

low risk of subacute cutaneous lupus erythrmatosus
Increases risk of fractures/oseteporsis - due to hypomagnaesima

Increase risk of c.difficult

Mask symptoms of gastric cancer

17
Q

Interactions: of ppis

A

es/Omeprazole + clopidogrel so use Lanzo instead

Increase conc of methotrexate, phenytoin, warfarin and digoxin

18
Q

H2 receptor antagonist:

A

Ranitidine,cimetidine,famotide,nizatidine

19
Q

Caution h2 receptor antagonists
What are their side effects
Interactions

A

Caution: may mask gastric cancer - rule out alarm features of cancer before treatment

Side effects - diarrhoea,headache,dizziness,rash and tiredness

Interactions - reduced absorption of ‘azole’ anti fugals

Cimetidine - CYP450 enzyme inhibitor