PPNP 2.0 Flashcards

1
Q

Intestinal Obstruction

A

Partial or complete obstruction of the intestinal lumen of the small or
large bowel
* Abdominal surgery with adhesions
* Congenital abnormalities of the bowel
* Carcinoma (primary, metastatic)

  • Fluid & electrolyte losses associated
    with colonic obstruction < small bowel
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2
Q

risk factor of intestinal obstruction

A
  • Abdominal surgery with adhesions
  • Congenital abnormalities of the bowel
  • Carcinoma (primary, metastatic)
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3
Q

Most common causes of Peptic Ulcer:

A
  • NSAIDs- inhibiting prostagladin synthesis, which is essential for gastric protection.
    Reducing the level of prostaglandins over a prolonged period of time leaves the gastric mucosa susceptible to damage, and overtime ulcers can begin to develop.
  • Aspirin – most ulcerogenic among the NSAID
  • H. pylori
  • Gastrin release due to infection → increased amount of gastric acid (HCl)
  • Most cases are caused by the organism; oral-faecal mode of transmission
  • Spiral shape of H. pylori allows them to penetrate your stomach lining - protected by
    mucus hence body’s immune cells are not able to reach them

(A rare cause of PUD is Zollinger-Ellison syndrome, which is a gastrin secreting tumor that increases gastric acid production.)

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4
Q

Cholecystitis

A

Acute inflammation of the gallbladder associated with abdominal pain, leukocytosis, and fever

Obstruction of the cystic duct occurs in almost all cases, suggesting
that stasis of bile in the gallbladder is important in the pathogenesis
of the disease.

Alanine aminotransferase (ALT) and aspartate aminotransferase (AST)
levels may be elevated in cholecystitis or with common bile duct
(CBD) obstruction

Amylase may also be mildly elevated in cholecystitis

Alkaline phosphatase level may be elevated (25% of patients with
cholecystitis)

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5
Q

__________________ and _______________
levels may be elevated in cholecystitis or with common bile duct
(CBD) obstruction

A

Alanine aminotransferase (ALT) and aspartate aminotransferase (AST)

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6
Q

Viral Hepatitis

A

Inflammation of the liver parenchyma

  • Can be caused by hepatotropic viruses, autoimmune disorders,
    reactions to drugs and toxins, other infectious disorders
  • Viral hepatitis – usually applied to diseases caused by hepatitis
  • A, B, C, D and E
  • Difficult to differentiate between the different types without the
    serologic tests; cannot rely on patient’s presenting symptoms only to differentiate which type
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7
Q

Liver Cirrhosis

A

Characterised by diffuse hepatic
fibrosis surrounding nodules of
liver tissue → permanent
alteration of hepatic blood flow
and liver function

Extensive fibrosis → distorts
liver architecture → formation
of regenerative nodules

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8
Q

Common symptoms of PUD

A

70% of PUD patients are asymptomatic

1) bloating & abdominal fullness
2) nausea
3) ANEMIA
- fatigue
- pallor
- shortness of breath
4) melena
5) hematemesis
6) peritonitis
-abdominal pain and rigidity
- tachycardia
7) perforation into peritoneal space

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9
Q

PUD

A

Sometimes asymptomatic
often burning epigastric pain

pain from duodenal ulcers
- 2-3 hours after meal and at night

pain frorm gastric ulcers
- 15-30 mins after meal

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10
Q

Food to avoid for PUD

A
  • CAFFEINE
  • Alcohol
  • Increase fatty foods
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11
Q

The pain associated with PUD is typically described as

A

gnawing, burning, aching, or a hunger-like pain

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12
Q

bowel sounds for PUD

A

Clients with PUD often present with hypoactive or hyperactive bowel sounds due to the abnormal movement and function of the gastrointestinal (GI) system. Bleeding gastric ulcers can cause hyperactivity of the GI system. The absence of bowel sounds indicates an emergency.

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13
Q

modifiable risk factor of PUD

A

Modifiable risk factors include smoking, alcohol or caffeine intake, and NSAID use.

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14
Q

General risk factor

A

1) Inflammatory bowel disease
2) Family history
3) Diet: likes to eat out?? spicy food??
low fibre, high fat
4) Weight, overweight
5) Lack of exercise
6) Alcohol and smoking
7) Diabetes

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15
Q

Investigations done for H.pylori

A

1) oesophagogastroduodenoscopy

2) Esophagogastroduodenoscopy

3) c-urea breath test

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16
Q

Medications to reduce gastric acidity

A

1) Antacids (do not take within 2 hours of other oral med)
2) H2 receptor antagonist
3) Proton pump inhibitor * prazole

17
Q

Medications for mucosal protective agents

A

Sulcralfate
Bismuth compounds
Misoprostol

18
Q

Drugs to kill H.pylori

A

Triple therapy

Clarithromycin + amoxicillin or metronidazole + PPI

19
Q

examples of antacids

A

1) Sodium bicarbonate
2) Calcium carbonate
3) Magnesium hydroxide
4) Aluminium hydroxide

20
Q

H2 receptor antagonist

A

1) famotidine
2) ranitidine
3) cimetidine

21
Q

Defensive factors

A
  • mucus
  • bicarbonate
  • blood flow
    -pathogens
22
Q

Aggressive factors of PUD

A
  1. hpylori
  2. nsaids
  3. acid
  4. pepsin
  5. smoking
23
Q

Protective effects, prostagladins promote:

A

1) mucus secretion
2) bicarbonate secretion
3) blood flow

24
Q

indication of antacids

A

Non-prescription remedy for heartburn and dyspepsia

large and frequent doses often required

25
Q

Some antacid preparations contain simethicone as an anti-foaming agent

A

Eases release of gas within the gastrointestinal tract via burping or flatulence

26
Q

Antacids adverse effects:

Na +

A

Fluid retention, hypertension, CHF

27
Q

Antacids adverse effects:

Ca ++

A

Hypercalcemia, rebound acid secretion

28
Q

Antacids adverse effects:

HCO 3-
CO 3-

A

CO2 gas formation resulting in
gastric distention, belching, flatulence

29
Q

NA+ / Ca++

A

metabolic acidosis
Milk-alkali syndrome

30
Q

Antacids adverse effects:

Mg++

A

Osmotic diarrhea

31
Q

Antacids adverse effects:

Al++

A

Constipation

32
Q

Avoid long term use of antacids in patients with …

A

renal insufficiency

33
Q

Adverse effects of famotidine and ranitidine

A
  • Headache, nausea, dry mouth
  • Rare but potentially severe: Tacycardia, blood dyscrasia, blurred vision, musculoskeletal pain
34
Q

Adverse effects of cimetidine

A

Headache, nausea, diarrhoea, constipation, fatigue

– Mental confusion in critically ill patients or in renal/hepatic
dysfunction

– Anti-androgenic, inhibits estradiol metabolism, increases serum prolactin

  • Men: gynaecomastia, impotence
  • Women: galactorrhoea
35
Q

PPI

A

inhibits H + -K+ -ATPase (proton pumps) in parietal cells

Irreversible block of proton pumps

Some anti-microbial activity against H. pylori

36
Q

PPI formulation

A

Enteric-coated formulation

37
Q

Enteric-coated formulation…

A

Protects against activation by stomach acidity before absorption

Active drug very poorly absorbed

38
Q

PPI adverse effects

A

Headaches. nausea, flatulence, diarrhea, dizziness, rash

39
Q
A