Investigations
- chest radiograph
- ECG - look for signs of myocardial infarction
- U and E's
- blood gases - normally low PaCO2 due to hyperventilation; usually a low PaO2
- lung function tests - not appropriate in an emergency admission:
- restrictive ventilatory impairment
- VC is reduced and the FEV1 is reduced in proportion. The forced expiratory ratio is normal or higher than normal.
Reference
- Purvey M, Allen G. Managing acute pulmonary oedema. Aust Prescr. 2017 Apr;40(2):59-63
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