Management of Impaired Cardiopulmonary Functioning

Core Concepts

Ongoing assessment: the trend is the truth

Management begins with assessment that never stops. The nurse tracks respiratory rate, depth, and effort; SpO₂ trends; level of consciousness (restlessness and confusion can be early, nonspecific signs of inadequate oxygenation); heart rate, rhythm, and blood pressure; perfusion signs (capillary refill, skin temperature and color, pulse quality); fluid status (daily weights, intake and output, edema); and activity tolerance. Findings are documented objectively, and trends are reported — a single "normal" reading means little if yesterday's was better. Significant changes are escalated to the provider promptly per institutional policy, with the nurse's assessment and the data behind it.

Positioning for easier breathing

Gravity and body position measurably change the work of breathing. Upright positions — sitting up in bed (Fowler's and semi-Fowler's positions) or in a chair — let the diaphragm move more freely and are often the first comfort and safety measure for a breathless person. People with orthopnea (difficulty breathing when flat) usually prefer several pillows or an elevated head of bed, and that preference is clinical information. Regular repositioning and turning also prevent pressure injuries and help mobilize secretions. Positioning choices follow the person's tolerance, the clinical situation, and any RT or provider guidance.

Airway clearance: helping the lungs help themselves

Secretions that pool in the airways block ventilation and breed infection. The nurse's toolkit is largely preventive and noninvasive:

• Coughing and deep breathing — coached, effective coughing moves secretions up and out; after surgery, splinting the incision supports an effective cough.
• Incentive spirometry — a device that encourages slow, sustained deep breaths; used to prevent and treat atelectasis (collapsed lung segments), especially after surgery or prolonged bed rest. It works only with correct, frequent use.
• Hydration and humidification — adequate hydration and humidified air help keep secretions thinner (within fluid restrictions ordered by the provider).
• Chest physiotherapy — percussion, vibration, and postural drainage performed per order, often with respiratory therapy.
• Suctioning — clearing the airway with a catheter when coughing can't; an invasive skill requiring specific training, orders, and institutional policy, used selectively, not routinely. Sputum that is produced is observed and documented (color, amount, odor).

Oxygen therapy: a treatment with a target

Oxygen is a medication — ordered, titrated to a target, and monitored. Delivery devices range from the nasal cannula (low flow, comfortable, widely used) to simple face masks, reservoir masks such as the non-rebreather (for higher concentrations), and the Venturi mask, which delivers a precise, controlled concentration when exact delivery matters. High-flow systems provide warmed, humidified oxygen at high flow. Humidification protects the airways from drying, and skin and ears need checking wherever tubing or masks rest.

Safety is constant: no smoking or open flames around oxygen, secure and unkinked tubing, skin inspection under devices. The pulse oximeter guides titration but has limits — poor perfusion, motion, nail polish, and ambient light distort readings, so a reading that doesn't match the person's appearance or symptoms should be verified with clinical assessment. Exact devices, flows, and targets are determined by orders and institutional protocol — never titrate or select devices on your own; verify current practice at your facility.

Activity, rest, and energy conservation

Impaired cardiopulmonary function forces a daily negotiation between rest and recovery. The nurse paces the person: plan care around rest periods, teach energy-conservation techniques for daily activities (sit while dressing, stop and breathe, break tasks into steps), and progress activity gradually within tolerance and per orders. Early, safe mobility prevents the downward spiral of bed rest — atelectasis, deconditioning, clots, pressure injuries — while honoring limits. Because activity intolerance raises fall risk, the nurse assesses gait, balance, and dizziness and adjusts supervision and the environment.

Medication support and education

Nurses do not prescribe, but they make prescribed therapy work: giving medications per the rights of administration, teaching what each is for, coaching correct inhaler technique (a common failure point — many people use inhalers incorrectly), watching for expected and adverse effects, reinforcing adherence, and answering questions. Common drug classes in cardiopulmonary care include bronchodilators and inhaled anti-inflammatories for lung disease and medications that support heart function or remove excess fluid — specific drugs, doses, and schedules come from provider orders and the pharmacist; this guide teaches the nurse's educational role, not the therapy itself.

Patient and family education

Teaching turns a hospital stay into a durable skill. People need to know which symptoms to report (increasing shortness of breath, chest discomfort, dizziness, worsening swelling, change in sputum, confusion), when and how to seek emergency care, how to use devices and inhalers, how to pace activity, how to quit tobacco (with resources), and what follow-up looks like. The teach-back method — asking the person to explain the plan back in their own words — reveals what actually landed. Education is tailored to literacy, language, cognition, and culture, and family caregivers are included when the person wishes.

Interprofessional collaboration, scope, and psychosocial support

Impaired cardiopulmonary function is managed by a team: respiratory therapists often handle oxygen titration, nebulized treatments, chest physiotherapy, and suctioning protocols; providers direct the medical plan; dietitians support nutrition (which fuels the muscles of breathing); pharmacists verify medications; physical therapy guides safe mobility. The nurse is the coordinator at the bedside: implement orders, monitor response, document, and communicate changes. Scope of practice varies by state and institution — when in doubt, check facility policy.

Breathlessness is frightening, and fear makes breathing worse. A calm, confident presence, upright positioning, paced breathing, and simple reassurance break the cycle. Involve family, respect preferences and dignity, and treat the person — not the oxygen saturation — as the focus of care.

Common Confusions