Cardiopulmonary Deterioration Case Lab

Key Takeaways

  • In mixed cardiopulmonary cases, unstable breathing, poor perfusion, acute chest symptoms, and new mental status change outrank routine tasks.
  • CMSRN questions expect the nurse to connect trends across oxygen need, lung sounds, blood pressure, urine output, pain, rhythm, and activity tolerance.
  • Immediate nursing actions include staying with the patient, focused assessment, positioning, oxygen per order or protocol, rapid escalation, and reassessment.
  • Documentation should capture baseline, change from baseline, interventions, provider or rapid response notification, and patient response.
  • Patient education after stabilization focuses on symptom reporting, medication purpose, activity pacing, and when to seek urgent care.
Last updated: May 2026

Cardiopulmonary Deterioration Case Lab

Shift Report

You are caring for four adults on a medical-surgical telemetry unit. Room 401 has heart failure and received IV furosemide at 0600. Room 402 has COPD and pneumonia, normally uses 2 L nasal cannula at home, and was stable overnight. Room 403 is 12 hours after bowel surgery with patient-controlled analgesia. Room 404 was admitted with cellulitis and has diabetes and hypertension. At 0830, the nursing assistant reports that Room 402 is more confused and keeps removing the oxygen tubing. At the same time, Room 404 presses the call light for chest heaviness.

CMSRN case questions rarely ask which diagnosis is most interesting. They ask which change represents immediate threat to oxygenation or perfusion. Both Room 402 and Room 404 require prompt RN assessment, but the first action depends on the data available. New confusion in pneumonia with oxygen disruption may signal hypoxemia, hypercapnia, sepsis, or delirium. Chest heaviness in a high-risk patient may signal acute coronary syndrome. The nurse should not continue routine medication passes, call dietary, or delegate assessment of either symptom.

First-Look Priorities

CuePossible meaningImmediate RN action
New confusion with pneumoniaHypoxemia, hypercapnia, sepsis, deliriumGo to bedside, assess airway, breathing, oxygen setup, vital signs, mentation
Chest heaviness with diabetesPossible atypical acute coronary syndromeStop activity, stay with patient, obtain vital signs, follow chest pain protocol
Postoperative shallow breathingOpioid effect, atelectasis, hypoventilationAssess sedation, respiratory rate, saturation, pain control, incentive spirometry use
CuePossible meaningImmediate RN action
Decreasing urine after diuresisPoor perfusion or volume issueReview intake, output, blood pressure, creatinine, lung sounds, edema

Case Progression

You enter Room 402. The patient is sitting forward, respiratory rate 30, saturation 86 percent on 2 L, temperature 38.6 C, heart rate 116, blood pressure 92/54, and speech is in short phrases. Lung sounds are coarse with crackles at the right base. The safest nursing actions are to position upright, verify oxygen delivery, apply oxygen according to order or protocol, remain with the patient, obtain a focused respiratory and perfusion assessment, and call for rapid assistance according to facility policy. A COPD history does not justify withholding oxygen when the patient is acutely hypoxemic and confused.

Use concise communication: baseline oxygen was 2 L with saturation 93 percent, now 86 percent with respiratory rate 30, fever, hypotension, confusion, and increased work of breathing. Anticipate orders such as arterial or venous blood gas, chest imaging, lactate, cultures, antibiotics, fluids, bronchodilators, or higher level of care. The nurse administers ordered time-sensitive antibiotics and respiratory treatments, monitors response, and documents reassessment.

After help arrives for Room 402, you assess Room 404. The patient reports pressure radiating to the jaw, nausea, and diaphoresis. Blood pressure is 158/92, heart rate 104, saturation 95 percent on room air. The nurse stops activity, initiates the chest pain protocol, obtains or facilitates a 12-lead ECG, reviews allergies and current medications, and notifies the provider. Do not give an antacid first or assume anxiety. Diabetes can blunt classic pain patterns, and nausea or fatigue may be cardiac.

Nursing Actions By Phase

  • Recognition: identify new respiratory distress, chest pressure, altered mentation, falling blood pressure, rising oxygen need, oliguria, and new rhythm symptoms.
  • Stabilization: sit upright, stay with the patient, apply ordered oxygen, stop activity, ensure IV access if present, and call for help.
  • Collaboration: notify provider or rapid response with specific trend data and clarify orders.
  • Documentation: record assessment findings, time of symptom onset, interventions, notifications, orders, and response.
  • Reassessment: repeat vital signs, saturation, lung sounds, pain rating, work of breathing, mentation, urine output, and response to medication.

Education After Stabilization

Once the acute episode is controlled, teaching becomes targeted. The pneumonia patient needs to report worsening dyspnea, fever, sputum changes, confusion, dizziness, and inability to maintain oxygen saturation if home monitoring is ordered. The chest pain patient needs medication teaching, symptom reporting, activity instructions, and follow-up planning. Heart failure patients need daily weights, sodium and fluid guidance as ordered, diuretic timing, and when to call for rapid weight gain or orthopnea. Postoperative patients need coughing, deep breathing, splinting, mobility, pain control, and sedation safety.

The exam point is sequencing. Do not teach during acute distress when airway, breathing, or circulation is unstable. Stabilize, escalate, reassess, then educate. Strong answers include objective data and a closing loop: the nurse returns to the bedside to determine whether the intervention worked.

Test Your Knowledge

A patient with COPD and pneumonia becomes confused, has a respiratory rate of 30, and oxygen saturation is 86 percent on the usual 2 L nasal cannula. What should the nurse do first?

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B
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D
Test Your Knowledge

A patient admitted for cellulitis reports chest pressure radiating to the jaw with nausea and diaphoresis. Which action is most appropriate?

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B
C
D
Test Your Knowledge

After oxygen is increased per protocol for the pneumonia patient, the saturation rises from 86 percent to 90 percent but the patient remains hypotensive and confused. What is the best next nursing action?

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B
C
D