Understanding Respiratory Nursing Assessment
The respiratory tract spans the upper airway (nose, pharynx, larynx) and lower airway (trachea, bronchi, bronchioles, alveoli), together with the lungs, pleura, respiratory muscles, and thoracic cage. Its core role is gas exchange: oxygen uptake and carbon dioxide elimination. Competent assessment links ventilation, diffusion, perfusion, and ventilation–perfusion matching (V/Q) to bedside findings and monitored trends.
High-yield symptoms include breathlessness (dyspnoea / dyspnea), cough and sputum change, wheeze, stridor, chest tightness or pain, haemoptysis (hemoptysis), fatigue, and reduced exercise tolerance. Objective data typically include respiratory rate and pattern, pulse oximetry where available (recognising limitations with perfusion, altitude, carbon monoxide, and certain dyes), peak expiratory flow when appropriate, and arterial or capillary blood gas analysis when indicated. Examination combines inspection (accessory muscle use, posture, cyanosis), palpation, percussion where used locally, and auscultation (breath sounds and adventitious sounds such as crackles, wheeze, and pleural rub).
Respiratory illness intersects with cardiovascular, infectious disease, allergy, oncology, occupational, and global public health contexts — for example asthma, COPD, community- and hospital-acquired pneumonia, tuberculosis, pulmonary embolism, acute and chronic respiratory failure, lung cancer, sleep-disordered breathing, and pandemic respiratory viruses. Nursing responsibilities commonly include airway maintenance, secretion clearance where trained, oxygen and non-invasive ventilation support per policy, accurate inhaler and nebuliser administration, monitoring for deterioration, education, and safe escalation — executed within your licence, scope, and local guideline sets (for example GOLD, GINA, BTS, NICE, WHO, or national equivalents).
Core anatomy and physiology points
The right lung has three lobes and the left two (making space for the heart). The visceral and parietal pleura surround each lung; a thin fluid layer reduces friction during breathing. Surfactant lowers alveolar surface tension. Inspiration is active (diaphragm and accessory muscles); quiet expiration is largely passive elastic recoil. Gas exchange occurs across the alveolar–capillary membrane over a very large surface area (often quoted near 70 m² in health), supported by a huge alveolar count.
🚨 Respiratory red flags — escalate immediately
- Acute severe breathlessness with hypoxia, tachypnoea, inability to speak in full sentences, or silent chest in asthma
- Stridor or marked wheeze with airway compromise — treat as a time-critical airway problem per local pathway
- Cyanosis, confusion, drowsiness, or falling level of consciousness suggesting critical hypoxaemia and/or hypercapnia
- Large-volume or rapidly increasing haemoptysis — definitions of “massive” vary by centre; manage as an emergency with resuscitation and urgent senior review
- Chest pain with haemodynamic instability — consider tension pneumothorax, massive pulmonary embolism, and acute coronary syndromes; activate emergency protocols
Rapid Assessment Pathways
Dyspnoea / Shortness of breath
- Onset: sudden vs gradual; exertional vs rest
- Triggers and relievers; orthopnoea / PND if relevant
- Associated fever, cough, pleuritic pain, leg swelling
- SpO₂ trend, work of breathing, auscultation
- Think asthma/COPD exacerbation, infection, PE, pulmonary oedema, pneumothorax
Cough / sputum
- Duration: acute (<3 wks), subacute, chronic
- Dry vs productive; volume and change in baseline
- Sputum colour, blood streaking; systemic symptoms
- Risk: smoking, TB exposure, travel, immunosuppression
- Investigations guided by setting (chest imaging, microbiology)
Wheeze / stridor
- Inspiratory harsh sound → upper airway (stridor) until proven otherwise
- Expiratory wheeze → small airway obstruction (asthma/COPD common)
- Assess distress; history of atopy, anaphylaxis, foreign body
- Peak flow / spirometry when appropriate and not delaying care
- Bronchodilator trial per protocol
Haemoptysis
- Estimate volume and frequency; frothy pink sputum vs frank blood
- Differentiate GI bleed, severe epistaxis, gingival bleeding
- Risk factors: malignancy, infection, anticoagulation, bronchiectasis
- Imaging and referral per pathway; massive bleed → resuscitation
- Document observations and escalation clearly
Respiratory Symptoms
Common Conditions
Nursing Procedures
Diagnostic Tests
Respiratory Medications
Related Body Systems
▶ References & Guidelines
- World Health Organization (WHO). Chronic respiratory diseases — global overview and public health context.
- Global Initiative for Asthma (GINA). Global Strategy for Asthma Management and Prevention.
- Global Initiative for Chronic Obstructive Lung Disease (GOLD). COPD diagnosis, management, and prevention.
- European Respiratory Society (ERS). Guidelines and statements.
- National Institute for Health and Care Excellence (NICE), UK. Respiratory conditions guidance.
- British Thoracic Society. Quality standards and guidelines.
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