Oxygenation 1 COPD Overview and Management

SLOThe student will:

1. Interpret assessment as it relates to the concept & to the focused assessment variations of each exemplar. (This includes all subjective, objective & diagnostic/laboratory testing.)

2. Prioritize the patient’s actual and/or potential problems, using sound clinical judgment related to the concept and individual exemplars.

3. Create measurable, achievable short & long-term goals that would optimize patients’ response to care; within the concept and exemplar-specific parameters. (This includes desired daily as well as ultimate discharge goals.)

4. Analyze concept and exemplar-based nursing and collaborative interpretations to achieve patient goals. (This includes independent nursing actions, medical treatments, and medical medication therapy period)

5. Evaluate expected patient responses, progression, the effectiveness of nursing & collaborative interventions. Determine if alterations in goals and or interventions are needed.

Overview

This lecture reviews Chronic Obstructive Pulmonary Disease (COPD), including its pathophysiology, clinical features, diagnostic evaluation, complications, and key nursing interventions to improve oxygenation and patient outcomes.

COPD Overview and Pathophysiology

• COPD is a chronic, irreversible disease causing airway obstruction in the lungs.
• It includes two main conditions: chronic bronchitis (airway inflammation and mucus) and emphysema (structural lung damage).
• Airway obstruction leads to decreased oxygenation and retention of carbon dioxide (CO2).
• Cigarette smoking is the leading risk factor by damaging airway cilia and increasing infection risk.
• Normal respiration requires intact airways, ventilation, perfusion (blood flow), and diffusion (gas exchange).

Clinical Manifestations and Complications

• Key symptoms: shortness of breath (dyspnea), productive cough, tachypnea (fast breathing), tachycardia, use of accessory muscles, and barrel chest (in emphysema).
• Chronic bronchitis: “blue bloater,” hypoxemia, cyanosis, polycythemia (increased red blood cells).
• Emphysema: “pink puffer,” minimal cough, severe dyspnea, weight loss, and pursed-lip breathing.
• Advanced COPD may cause right-sided heart failure (cor pulmonale) with edema and jugular vein distention.
• Common triggers for exacerbation: infection, not taking medications, dehydration, cold weather.

Diagnostic Evaluation

• Arterial blood gas (ABG) analysis: check pH (7.35-7.45), PCO2 (35-45 mmHg), HCO3- (24-28 mEq/L), PaO2 (80-100 mmHg), O2 sat (95–100%).
• Pulse oximetry is used for monitoring oxygen saturation; COPD goal is 88–92%.
• Chest X-ray, pulmonary function tests, and CBC (including WBC, hemoglobin) assess severity, infection, and polycythemia.
• Lactic acid may indicate decreased oxygenation if elevated (>2.2 mmol/L).
• Temperature conversion (C↔F) formulas are essential for clinical documentation.

Nursing Management and Interventions

• Maintain target O2 saturation at 88–92% using nasal cannula or Venturi mask.
• Teach and encourage pursed-lip and abdominal breathing to control dyspnea and anxiety.
• Promote airway clearance by teaching effective coughing and using incentive spirometry.
• Encourage small, frequent, high-calorie meals and collaborate with dietitians for nutrition support.
• Schedule rest periods between activities and assist with ADLs as needed.
• Monitor for infection and heart failure signs; report changes promptly.
• Provide immunizations (flu, pneumococcal) to prevent respiratory infections.
• Educate patients and families on smoking cessation, safety with home oxygen, and when to seek medical attention.
• Collaborate with interdisciplinary teams (respiratory therapy, physical therapy, social work).

Key Terms & Definitions

• COPD — Chronic Obstructive Pulmonary Disease; persistent lung disease with airflow limitation.
• Chronic bronchitis — Airway inflammation with mucus production for ≥3 months in 2 consecutive years.
• Emphysema — Irreversible enlargement and destruction of alveoli, causing decreased elasticity.
• Hypoxemia — Low oxygen levels in the blood.
• Hypercapnia — Elevated CO2 levels in the blood.
• Polycythemia — Increased red blood cells due to chronic hypoxia.
• Cor pulmonale — Right-sided heart failure due to lung disease.
• Pursed-lip breathing — Exhalation technique to reduce dyspnea and CO2 retention.

Action Items / Next Steps

• Review normal and abnormal ABG values and practice interpretation.
• Practice temperature conversions between Celsius and Fahrenheit.
• Read posted medication sheets for common respiratory drugs.
• Prepare questions for discussion board as needed.