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This table provides a comprehensive overview of the grading system for the severity of an asthma exacerbation, as outlined by the National Institute for Health and Care Excellence (NICE) Clinical Knowledge Summaries (CKS). Understanding the severity of asthma exacerbations is crucial in clinical practice, as it guides healthcare professionals in making informed decisions regarding patient management and treatment.
The table categorizes exacerbations into three distinct levels: Moderate, Acute Severe, and Life-threatening, based on specific criteria such as peak expiratory flow rates (PEFR), respiratory rates, pulse rates, clinical features, and oxygen saturation levels. This classification aids in promptly identifying and addressing asthma exacerbations, ensuring the appropriate level of care is provided to patients. This information is essential for medical students and primary care clinicians to enhance their understanding of asthma management and patient care.
| Severity | PEFR (Adults) | Respiratory Rate (per min) | Pulse Rate (per min) | Clinical Features | Oxygen Saturation |
|---|---|---|---|---|---|
| Moderate | >50–75% best or predicted | Normal speech | Normal | No features of acute severe or life-threatening asthma | ≥92% |
| Acute severe | 33–50% best or predicted | ≥25 (≥12 years) | ≥110 (≥12 years) | PEFR <50% (Children <50% best or predicted) | ≥92% |
| ≥30 (5-12 years) | ≥125 (5-12 years) | Respiratory rate criteria in children | |||
| ≥40 (2-5 years) | ≥140... |
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