Rest of GI Lecture

Introduction to GI Diagnostics
- Emphasis on the abundance of diagnostics related to GI conditions.
- Recommendation for using index cards for lab values and diagnosis tests in GI.
- Acknowledgment of repetition for returning students; importance of thorough note-taking.
Importance of Note-taking in Class
- Notice that students sometimes skip taking detailed notes.
- Potential reason: Students feel they understand the content well during lectures and therefore skip writing it down.
- Recommendation to write everything down, regardless of perceived understanding, to keep it on the radar for studying.
- Encouragement to finish strong in the semester despite feeling tired.
Classroom Etiquette
- Observations of distraction due to cell phone use and its impact on focus.
- Encouragement to stay attentive and focused to ensure retention of critical content.

Definition and Characteristics
- Esophageal varices are abnormally enlarged veins located in the lower esophagus, typically resulting from liver cirrhosis and portal hypertension.
- They are described as fragile and prone to rupture.
- Ruptured varices can lead to life-threatening hemorrhage.
Symptoms of Ruptured Esophageal Varices
- Hematemeis: Presence of blood in vomit.
- Melena: Black, tarry stools.
- Vital Sign Changes:
- Blood Pressure: Decreases.
- Heart Rate: Increases.
- Symptoms outlined as being associated with the rupture of varices specifically, not the intact condition.
Risk Factors and Causes
- Portal hypertension associated with liver cirrhosis is the primary cause.
- Continued alcohol use is noted as a significant risk factor leading to liver cirrhosis.
- Recommendations against the use of aspirin, acetaminophen, and NSAIDs like ibuprofen and naproxen due to their potential blood-thinning effects.
- Foods to avoid include difficult-to-digest items, such as certain meats and chips (e.g., Doritos due to shape).
Diagnostics for Esophageal Varices
- Use of endoscopy (eg. EGD - esophagogastroduodenoscopy) as a diagnostic procedure.

Focus of Nursing Care
- Three primary aspects: maintaining intact varices, managing ruptured varices, preparing for endoscopy.
Prevention of Rupture
- Administration of beta-blockers to decrease portal vein pressure.
Management of Ruptured Varices
- IV Fluids and Blood Replacement: Fluid replacement prioritized due to time efficiency; isotonic solutions, Lactated Ringer’s and Normal saline, typically used.
- Monitoring Vital Signs: Focus on blood pressure and heart rate changes.
- Urine Output: Important to track for signs of organ perfusion.
- Nasogastric Tube Care: Specific types of NG tubes (like Senstaken-Blakemore tubes) used for tamponade of ruptured varices.
- Important to distinguish between esophageal and gastric balloon functions in these tubes.
- Medication Administration: Use of octreotide, a vasoconstrictor.
- Emergency Procedures: If gastric balloon integrity is lost, immediate intervention required to prevent airway obstruction.
Collaborative Care Considerations
- Airway management is critical; the risk of esophageal balloon compressing the airway if the gastric balloon deflates.
- Frequent assessment of the patient’s condition is necessary, especially in a one-on-one nurse-to-patient scenario.
- Regularly scheduled deflation of the esophageal balloon to prevent tissue damage, while ensuring gastric balloon remains inflated.

Overview
- Esophageal cancer is rare but increasing in prevalence with a poor prognosis due to late diagnosis (often stage four).
Risk Factors
- More common in Caucasian males, presence of Barrett's esophagus (a precancerous condition), smoking, and alcohol use.
Symptoms
- Progressively difficult swallowing (dysphagia) is the most common symptom.
Treatment Options
- Initial approach typically involves radiation and chemotherapy.
- If ineffective and the patient qualifies, surgical options such as esophagectomy are considered.
- The esophagectomy process entails significant resection of the esophagus and parts of the stomach, followed by reconstruction.
Nursing Care Post-Esophagectomy
- Strict NPO status for up to a week post-surgery, with gradual reintroduction to liquids.
- Swallowing tests performed one to two weeks post-surgery to assess the anastomosis site for leaks.
- Pain Management: Monitoring and administering analgesics as appropriate.
- Nurse Responsibilities: Identifying issues with NG tube placement, noting that misplaced tubes require surgical intervention to resolve.

Overview
- Stomach cancer characterized by malignant cells forming a tumor.
Risk Factors
- Populations at higher risk include males, specific ethnic groups (Hispanic, African American, Asian American), and risk exposure to H. Pylori, smoking, obesity, and diets rich in smoked or pickled foods.
Symptoms
- Commonly presents with anemia (due to blood loss in stools), weakness, dizziness, shortness of breath, weight loss, and abdominal pain.
Diagnosis and Treatment
- Upper GI endoscopy used for diagnosis, evaluating metastasis if present.
- Surgical treatment may include Billroth I or Billroth II procedures, involving partial gastric resection.
Complications and Nursing Considerations
- Patients who undergo surgery may experience dumping syndrome and pernicious anemia.
- Nursing responsibilities include nutritional monitoring, educating on potential feeding tube placement due to surgery, and continually assessing for anemia and hydration status.

Emphasis on the importance of thorough monitoring and nursing care in patients experiencing GI disorders, especially as complexities of treatment and recovery are high in these populations.