Oral Cavity
- Mouth
- Mechanical Digestion
- Salivary Amylase Begins Carbohydrate Breakdown
- Lingual Lipase Begins Lipid Breakdown
- Esophagus
- Bolus
- Peristalsis
Stomach Digestion
- 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
GI Absorption
- Stomach
- Alcohol
- Duodenum
- Iron
- Jejunum
- Folate
- Terminal Ileum
- Vitamin B12
- Bile Resorption
Large Intestine
- Colon
- Electrolyte Reabsorption
- Water Reabsorption
- Microflora Produce Vitamins
- Rectum Stores Feces
Small Intestine Absorption
- 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
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
Acute Abdomen Differential Diagnosis: Lower Quadrants
- Appendicitis
- Salpingitis
- Sigmoid Volvulus
- Sigmoid Diverticulitis
- Ectopic Pregnancy
- Ovarian Torsion
- Renal Calculi
- Pyelonephritis
Acute Abdomen Differential Diagnosis: Midepigastrium and Diffuse
- Peptic Ulcer Disease
- Pancreatitis
- Aortic Dissection
- Myocardial Infarction
- Peritonitis
- Hemorrhage or Perforation
- Bowel Obstruction
- Strangulation
- Acute Hepatitis
Acute Abdomen Differential Diagnosis: Upper Quadrants
- Cholecystitis
- Biliary Colic
- Cholangitis
- Perforated Duodenal Ulcer
- Acute Hepatitis
- Splenic Rupture
- IBS (Splenic Flexure Syndrome)
Acute Gastritis
- Erosive
- Disruption of Mucosal Barrier
- Caused by Stress
- NSAIDs (Non-Steroidal Anti-Inflammatory Drugs)
- Alcohol
- Uremia
- Burns
- Curling's Ulcer
- Brain Injury
- Cushing Ulcer
- Increase H+ Production
Acute Pancreatitis Causes
- "GET SMASHHED" Mnemonic
- Gallstones
- (Ethanol) Alcohol
- Trauma
- Steroids
- Mumps
- Autoimmune
- Scorpion Sting
- Hypercalcemia
- Hypertriglyceridemia > 1000
- ERCP
- Drugs
Acute Pancreatitis Assessment
- Heavy Alcohol Use and Gallstones
- Abdominal Pain
- Nausea/Vomiting/Anorexia
- Abdominal Rigidity/Guarding
- Decreased or Absent Bowel Sounds
- Hypotension and Tachycardia
- Jaundice
- Increased White Blood Cells
Gastroesophageal Reflux Disease (GERD) Assessment
- Relaxed Lower Esophageal Sphincter
- Dyspepsia (Indigestion)
- Belching
- Nighttime Coughing
- Dysphagia
- Epigastric Pain
- Regurgitation
- Heartburn (Pyrosis)
- Globus
Peptic Ulcer Disease Assessment
- Helicobacter Pylori
- NSAIDs
- Increased Stomach Acid
- Abdominal Pain
- Heartburn (Pyrosis)
- Melena
- Weight Changes
- GI Distress
- Most Commonly in Duodenum
- Duodenal: Pain Relieved by Eating
- Gastric: Pain Caused by Eating
Types of Intestinal Obstruction
- Adhesions
- Hernia
- Volvulus
- Intussusception
- Tumor
- Mesenteric Artery Occlusion
- Spinal Injury
- Paralytic Ileus
Types of Hernias
- Hiatal
- Gastroesophageal Reflux Disease (GERD)
- Inguinal
- Men
- Femoral
- Women
- Incisional
- Umbilical
- Strangulation
Mesenteric Ischemia
- Severe Abdominal Pain
- Bloody Diarrhea
- Metabolic Acidosis
- Increased WBC
- Increased Lactate (Lactic Acid)
- X-ray
- Air Within Bowel Wall
- CT Angiography
- Bowel Wall Edema
- Antibiotics
- Emergent Surgical Intervention
Cholecystitis Causes
- Gallbladder Inflammation
- Female
- Fair (Caucasian)
- Fat (Obese)
- Fertile (Pregnant)
- Forty (Advanced Age Over 40)
- Flatulence
Cholecystitis Assessment
- RUQ Pain
- Referred Shoulder Pain
- Clay Colored Stools
- Jaundice
- Nausea and Vomiting
- Dyspepsia (Indigestion)
- Fever
- Increased WBCs
- Fatty or Spicy Foods
- Ultrasound
Diverticulosis and Diverticulitis Assessment
- Outpouching
- Inflamed Diverticula
- Abdominal Pain
- Abdominal Distention
- Flatulence
- Fever
- Rectal Bleeding
- Alternating Constipation and Diarrhea
- Peritonitis
Complications of Cirrhosis
- Portal Hypertension
- Ascites
- Esophageal Varices
- Coagulation Defects
- Portal-Systemic Encephalopathy
- Hepatorenal Syndrome