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Diagnosis Prognosis Therapy

Asthma beta-agonists probably increased the risk of a fatal attack. Level of evidence 2a Expiry Date November 2002 Asthma spirometry helped predict patients requiring admission. Level of evidence 4 Expiry Date November 2002 Asthma acute exacerbation: signs and symptoms improved before PEFR. Level of evidence 4 Expiry Date November 2002 Asthma increased risk of asthma death or readmission following hospital admission. Level of evidence 3b Expiry Date November 2002 Asthma acute exacerbation: mechanically-ventilated patients were at risk of barotrauma. Level of evidence 4 Expiry Date November 2002 Asthma acute exacerbation: PEFR was comparable to FEV1. Level of evidence 4 Expiry Date November 2002 Asthma acute exacerbation: PEFR could predict problems as well as FEV1. Level of evidence 4 Expiry Date November 2002 Asthma acute exacerbation: quiet chest, too dyspnoeic to talk or cyanosed increased the risk of hypercapnia. Level of evidence 4 Expiry Date November 2002 Asthma acute exacerbation: PEFR could not predict acidosis, hypoxia or hypercapnia. Level of evidence 4 Expiry Date November 2002 Asthma acute exacerbation: individual clinical signs and symptoms did not predict relapse. Level of evidence 1b Expiry Date November 2002 Asthma acute exacerbation: clinical prediction rule may help identify patients that need admission. Level of evidence 2a Expiry Date November 2002 Asthma patients on regular beta-agonists were at greater risk of fatal or near-fatal asthma attacks. Level of evidence 3b Expiry Date November 2002 Asthma acute exacerbation: relapse could be predicted. Level of evidence 1b Expiry Date November 2002 Asthma increased risk of death if non-compliant or previous life-threatening attacks. Level of evidence 3b Expiry Date November 2002 Asthma acute exacerbation: FEV1 may help predict which patients will relapse or require admission. Level of evidence 4 Expiry Date November 2002 Asthma acute exacerbation: relapse was more likely in frequent attenders. Level of evidence 1b Expiry Date November 2002