Respiratory Assessment, COPD, Pneumonia, and Oxygenation
Key Takeaways
- Respiratory priority questions focus on work of breathing, oxygenation trend, mental status, and ability to maintain the airway.
- COPD patients may need controlled oxygen, but hypoxemia and distress are still urgent and require escalation.
- Pneumonia deterioration can appear as tachypnea, increasing oxygen need, fever or hypothermia, confusion, and sepsis signs.
- Pulse oximetry is useful but must be interpreted with perfusion, skin findings, respiratory effort, and patient baseline.
- RN actions include positioning, airway support within policy, ordered oxygen delivery, reassessment, and rapid communication.
Respiratory Assessment That Drives Action
Medical-surgical nurses manage many patients with chronic cough, oxygen use, abnormal breath sounds, or pneumonia. CMSRN questions ask which change means the patient is no longer stable. The answer is usually not the lowest oxygen saturation alone; it is the full picture of oxygenation, ventilation, airway protection, work of breathing, and mental status. A patient with chronic COPD and an oxygen saturation of 90 percent may be at baseline, while a postoperative patient who drops from 97 percent to 90 percent with new confusion and shallow breathing needs immediate attention.
The First Look
Before reviewing the chart, look at the patient. Can they speak full sentences? Are they using accessory muscles? Are lips or nail beds cyanotic? Is the patient restless, drowsy, or newly confused? Is there stridor, gurgling, or inability to clear secretions? These findings carry more weight than a single number.
| Cue | Why it matters | RN response |
|---|---|---|
| New confusion or restlessness | Early hypoxemia or hypercapnia may present as behavior change | Assess airway, breathing, oxygen saturation, vital signs, glucose if indicated, and escalate |
| Tripod position and accessory muscles | Increased work of breathing | Sit upright, stay with patient, apply ordered oxygen support, call provider or rapid response if severe |
| Wet voice or coughing with meals | Aspiration risk | Stop oral intake, position upright, suction if trained and needed, notify provider and speech therapy per protocol |
| Cue | Why it matters | RN response |
|---|---|---|
| Silent chest in asthma or COPD flare | Poor air movement can be worse than wheezing | Treat as urgent, assess closely, escalate |
COPD Judgment
COPD questions often tempt the nurse to under-treat hypoxemia because of concern about oxygen drive. The CMSRN priority is to prevent hypoxic injury while using ordered or protocol-based oxygen carefully. If a COPD patient is acutely dyspneic, cyanotic, confused, or has a falling saturation, the nurse should not withhold oxygen. Use the prescribed device and target range if ordered, reassess respiratory status, and notify the provider or rapid response team for severe distress.
Common COPD nursing priorities include assessing baseline oxygen use, breath sounds, sputum changes, activity tolerance, mental status, and response to bronchodilators or steroids if ordered. Monitor for medication effects such as tachycardia after beta agonists or oral thrush with inhaled corticosteroids. Teach pursed-lip breathing, pacing, smoking cessation resources, inhaler technique, and when to seek care for increased sputum volume, purulence, fever, or worsening dyspnea.
Pneumonia and Sepsis Risk
Pneumonia becomes a higher priority when the patient shows systemic deterioration. Watch for respiratory rate above baseline, increasing oxygen requirement, hypotension, tachycardia, decreasing urine output, lactate concern if ordered, and acute confusion. Older adults may not mount a fever; hypothermia or delirium may be the first sign. The nurse should obtain current vital signs, assess lung sounds and work of breathing, monitor sputum and hydration, administer ordered antibiotics on time, encourage pulmonary hygiene as tolerated, and escalate concerning trends.
Scenario: A patient with pneumonia was on room air yesterday and now needs 4 L nasal cannula to keep saturation above 90 percent. They are newly confused and respiratory rate is 30. This is not routine pneumonia fatigue. The nurse should assess immediately, position the patient upright, verify oxygen setup, notify the provider, and consider rapid response based on policy and overall status.
Oxygen Devices and Monitoring
CMSRN questions may describe nasal cannula, simple mask, Venturi mask, nonrebreather, humidified oxygen, or high-flow systems. The nurse does not independently prescribe high-level respiratory support, but must know when current support is failing. If oxygen saturation remains low despite ordered oxygen, if the patient has severe work of breathing, or if mental status declines, call for help.
Practical checks include:
- Confirm the tubing is connected, flow is correct, and the device fits.
- Reposition the pulse oximeter if the waveform is poor or extremities are cold.
- Compare saturation with respiratory effort and skin signs.
- Check for opioid or sedative effect in a hypoventilating patient.
- Use incentive spirometry, coughing, deep breathing, and early mobility when appropriate and safe.
Airway Protection and Aspiration
Airway is the first priority when the patient cannot protect it. Gurgling respirations, repeated choking, vomiting with decreased alertness, or absent gag in the wrong setting require immediate positioning, suction per competency, stopping oral intake, and escalation. A patient with stroke, delirium, sedation, neuromuscular weakness, or recent procedure may aspirate silently. CMSRN-safe nursing judgment includes keeping the head of bed elevated, verifying diet orders, screening swallowing per policy, and communicating changes before giving oral medications.
Reporting Respiratory Decline
A useful report includes baseline and current oxygen delivery, saturation, respiratory rate, work of breathing, lung sounds, mental status, temperature, heart rate, blood pressure, and relevant risks such as COPD, opioid use, aspiration, or recent surgery. Specific data support rapid decisions and reduce delays.
A patient with COPD has an oxygen saturation of 84 percent, is confused, and is using accessory muscles. Which action is most appropriate?
Which pneumonia patient should the nurse assess first?
A postoperative patient is drowsy, has shallow respirations at 8 per minute, and oxygen saturation has fallen to 89 percent after opioid analgesia. What is the priority nursing action?