Janani Shared "Z GI" - 90 Picmonics
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Z GI
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
Liver tissue architecture
- Apical surface of hepatocytes faces bile canaliculi. Basolateral surface faces sinusoids. Kupffer cells, which are specialized macrophages, form the lining of these sinusoids (black arrows in A ; yellow arrow shows hepatic venule).
- Hepatic stellate (Ito) cells in space of Disse store vitamin A (when quiescent) and produce extracellular matrix (when activated).
- Zone I—periportal zone: Affected 1st by viral hepatitis Ingested toxins (eg, cocaine)
- Zone II—intermediate zone: Yellow fever
- Zone III—pericentral vein (centrilobular) zone: Affected 1st by ischemia Contains cytochrome P-450 system Most sensitive to metabolic toxins Site of alcoholic hepatitis
- liver disease severity checked by albumin, bilirubin and PT time
Tracheoesophageal Fistula (TEF)
- Cause
- Esophageal Atresia
- Ends in Blind Pouch
- Assessment
- Coughing
- Choking
- Cyanosis
- Drooling
- Considerations
- NPO
- Surgical Emergency
- Aspiration Pneumonia
2 mins
Salivary Gland Tumors
- Pleomorphic adenoma
- Painless mobile mass
- Most common benign salivary gland tumor
- Composed of chondromyxoid storm and epithelium
- Recurs if incompletely excised or ruptured intraoperatively
- Mucoepidermoid carcinoma
- Painless and slow-growing
- Mucinous and squamous component
- Malignant tumor
- Warthin tumor
- Benign cystic tumor with germinal centers
Zenker Diverticulum
- Pathophysiology
- False Diverticulum
- Junction of Pharynx and Esophagus
- Inferior Pharyngeal Constrictor
- Symptoms
- Dysphagia
- Regurgitation of Undigested Food
- Halitosis
- Diagnosis
- Barium Swallow
- Treatment
- Surgical Repair
2 mins
Mallory-Weiss
- Characteristics
- Bleeding From Tears in Mucosa
- Forceful Vomiting
- Alcoholism
- Eating Disorders (Bulimia)
- Painful Hematemesis
- Diagnosis
- Endoscopy
- Management
- Observation
2 mins
Boerhaave Syndrome
- Pathophysiology
- Esophageal Rupture
- Increased Esophageal Pressure while Vomiting
- Lower 1/3 of Esophagus
- Signs and Symptoms
- Chest Pain
- Odynophagia
- Subcutaneous Emphysema
- Management
- Shock
- Surgical Emergency
2 mins
Achalasia
- Pathophysiology
- Failure to Relax Lower Esophageal Sphincter
- Malignancies
- Chagas Disease
- Loss of Auerbach Plexus
- Symptoms
- Dysphagia to Solids & Liquids
- Diagnosis
- Barium Swallow
- Bird's Beak Appearance
- Manometry
- Risk Factors
- Increased Risk Squamous Cell Carcinoma
2 mins
Gastroesophageal Reflux Disease (GERD) Assessment
- Pathophysiology
- Relaxed Lower Esophageal Sphincter
- Signs and Symptoms
- Dyspepsia (Indigestion)
- Belching
- Nighttime Coughing
- Dysphagia
- Epigastric Pain
- Regurgitation
- Heartburn (Pyrosis)
- Globus
2 mins
Barrett's Esophagus
- Histological findings
- Metaplasia in Lower Esophagus
- Columnar Epithelium
- Associated Pathologies
- Gastroesophageal Reflux Disease (GERD)
- Esophagitis
- Esophageal Ulcers
- Increased Risk of Esophageal Adenocarcinoma
1 min
Hypertrophic Pyloric Stenosis (HPS) Assessment
- Mechanism
- Hypertrophied Pylorus
- Risk Factor
- Macrolide Use
- Assessment
- 3-6 Weeks of Age
- Projectile Vomiting After Feeding
- No Pain or Discomfort
- Weight Loss
- Dehydration
- Hungry Baby
- Olive Mass
2 mins
Hypertrophic Pyloric Stenosis (HPS) Interventions
- Treatment
- Pyloromyotomy
- Preoperative Care
- Stabilize Fluid and Electrolyte Balance
- Nasogastric Tube
- Monitor Feeding
- Postoperative Care
- Start Formula or Breastfeeding Within 24 Hours
- Feedings Every 4-6 hours
- Full Feeding Within 2 days
2 mins
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
1 min
Chronic Gastritis
- Type A
- Type A
- Fundus and Body
- Autoimmune
- Autoantibodies to Parietal Cells
- Pernicious Anemia
- Achlorhydria
- Type B
- Type B
- Most Common Type
- Helicobacter pylori
- Antrum
- Increased Risk of MALT Lymphoma
- Associations
- HIV/AIDS
- Crohn's Disease
3 mins
Peptic Ulcer Disease Assessment
- Mechanism/Cause
- Helicobacter Pylori
- Increased Stomach Acid
- Assessment
- Abdominal Pain
- Heartburn (Pyrosis)
- Melena
- Weight Changes
- GI Distress
- Considerations
- Most Commonly in Duodenum
- Duodenal: Pain Relieved by Eating
- Gastric: Pain Caused by Eating
2 mins
Peptic Ulcer Disease Interventions
- Combination Drug Therapy
- Two Antibiotics
- Proton Pump Inhibitor (PPI)
- Decrease Acid Secretion
- Avoid NSAIDs
- Diet and Lifestyle Changes
1 min
Zollinger-Ellison Syndrome Disease
- Pathophysiology
- Gastrin-Secreting Tumor
- Increased Gastric Acid
- Recurrent Peptic Ulcers
- MEN Type 1
- Symptoms
- Abdominal Pain
- Heartburn (Pyrosis)
- Diarrhea
3 mins
Zollinger-Ellison Syndrome Diagnosis and Treatment
- Diagnosis
- Gastrin > 1000 pg/mL
- Positive Secretin Stimulation Test
- Treatment
- High-Dose PPI
- Octreotide
- Surgical Resection
3 mins
Stomach Cancer
- Adenocarcinoma
- Intestinal Type
- Intestinal Type
- Smoked Foods Containing Nitrosamines
- Achlorhydria
- Type A Blood
- Helicobacter pylori
- Diffuse Type
- Diffuse Type
- Signet Ring Cells
- Linitis Plastica (Leather Bottle Stomach)
- Assessment
- Acanthosis Nigricans
- Left Supraclavicular Lymph Node
- Virchow's Node
- Subcutaneous Periumbilical Mets
- Sister Mary Joseph's Nodule
- Complications
- Bilateral mets to ovaries
- Krukenberg's tumor
3 mins
Meckel's Diverticulum
- Pathophysiology
- True Diverticulum
- Vitelline Duct
- Yolk Stalk
- Contain Ectopic Tissue
- Pancreatic And Gastric Mucosa
- Signs and Symptoms
- Hemorrhage
- Intussusceptions
- Volvulus
- Diagnosis
- 2 Feet From Ileocecal Valve
- 2 Inches Long
- 2% Population
- First 2 Years Of Life
- Pertechnetate T99
2 mins
