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Medical-Surgical Nursing, 9th Ed., Ignatavicius & Workman, 2018/
52 - Assessment of the Gastrointestinal SystemAce Your Medical-Surgical Nursing, 9th Ed., Ignatavicius & Workman, 2018 Classes and Exams with Picmonic: #1 Visual Mnemonic Study Tool for Registered Nurse (RN) Students
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Medical-Surgical Nursing, 9th Ed., Ignatavicius & Workman, 2018 | Registered Nurse (RN) School Study Aid
Oral Cavity
- Characteristics
- Mouth
- Mechanical Digestion
- Salivary Amylase Begins Carbohydrate Breakdown
- Lingual Lipase Begins Lipid Breakdown
- Esophagus
- Bolus
- Peristalsis
1 min
Stomach Digestion
- Characteristics
- Chief Cells Secrete Pepsinogen
- Pepsinogen Turned to Pepsin By H+
- Protein Breakdown Begins
- Mucous Cells Secrete Mucus and Bicarbonate
- G Cells Secrete Gastrin
- Gastrin Stimulates Parietal Cell HCl Release
- Parietal Cells Secrete Intrinsic Factor
2 mins
Pancreas
- Characteristics
- Acinar Cells Release Digestive Enzymes
- Ductal Epithelial Cells Release Bicarbonate
- Islets of Langerhans
- Beta Cells Release Insulin
- Alpha Cells Release Glucagon
- Delta Cells Release Somatostatin
- Somatostatin Inhibits Alpha and Beta Cells
3 mins
Small Intestine Digestion
- Brush border enzymes
- Pancreatic Enzymes are secreted via a Duct
- Pancreas secretes bicarbonate
- Brush Border activates Pancreatic Trypsin
- Trypsin activates Chymotrypsin
- Trypsin and Chymotrypsin digest Proteins
- Gallbladder Releases Bile
- Pancreatic Lipase breaks down Lipids
- Goblet cells secrete mucus
- Pancreatic Amylase breaks down Carbohydrates
- Pancreatic Nucleases breakdown DNA/RNA
- Digestion occurs in the Duodenum
2 mins
Small Intestine Absorption
- Characteristics
- Carbohydrates Undergo Active Transport
- Amino Acids Undergo Active Transport
- Small Lipids Undergo Passive Diffusion
- Epithelial Cells
- Intestinal Capillaries
- Hepatic Portal Transports Nutrients
- Liver
- Large Lipids Transported as Chylomicrons
- Lacteals Transport Chylomicrons
2 mins
Large Intestine
- Characteristics
- Colon
- Electrolyte Reabsorption
- Water Reabsorption
- Microflora Produce Vitamins
- Rectum Stores Feces
1 min
GI Absorption
- Stomach
- Alcohol
- Duodenum
- Iron
- Jejunum
- Folate
- Terminal Ileum
- Vitamin B12
- Bile Resorption
1 min
Irritable Bowel Syndrome (IBS) Assessment
- Abdominal Pain
- Relieved by Defecation
- Alternating Diarrhea and Constipation
- Fatigue
- Excessive Flatulence
- Sensation of Incomplete Evacuation
- Considerations
- Stressors
- Food Intolerances
- More Common in Women
- Rule Out Other Disorders
2 mins
PT/PTT Lab Values
- Prothrombin Time (PT)
- 10-14 seconds
- Activated Partial Thromboplastin Time (PTT or aPTT)
- 25-35 seconds
1 min
Calcium (Ca2+) Lab Value
- 8.5 to 10.5 mg/dL
26 secs
Potassium (K+) Lab Value
- 3.5 to 5.0 mEq/L
20 secs
Sodium (Na+) Lab Value
- 135-145 mEq/L
24 secs
Liver Enzyme Tests: AST and ALT
- AST/ALT Ratio
- AST: 10-30 U/L
- ALT: 10-40 U/L
1 min
Bilirubin Lab Value
- 0.2-1.2 mg/dL
- Increased Bilirubin Causes Jaundice
54 secs
Hyperbilirubinemia
- Cause/Mechanism
- Increased Unconjugated Bilirubin
- Assessment
- Jaundice
- Kernicterus
- Interventions
- Early Feedings
- Heme Oxygenase Inhibitors
- Phototherapy
- Protect Eyes
- Monitor for Dehydration
- Considerations
- Monitor Bilirubin Levels
3 mins
Cholesterol Lab Values
- LDL (Low Density Cholesterol)
- < 100 mg/dL
- HDL (High Density Cholesterol)
- > 40 mg/dL Males
- > 50 mg/dL Females
- Total Cholesterol
- < 200 mg/dL
1 min
Albumin Lab Value
- 3.5 - 5.0 g/dL
43 secs
Magnetic Resonance Imaging (MRI)
- Procedure
- Internal Body Images
- Detects Variations of Soft Tissues
- Considerations
- No Metal Objects
- No Pacemakers
- Contrast is Non-Iodine
- Safe During Pregnancy
- Long Procedure
- Antianxiety Medications
2 mins
