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Fetal cardiotocography was abnormal, so birth was expedited by emergency caesarean section due to concerns for fetal distress secondary to \u03b2\u2082-agonist toxicity. This case highlights the risks of inhaled \u03b2\u2082-agonist toxicity in pregnancy, which can be associated with troponin rise and fetal distress, even in the absence of a severe asthma exacerbation. It also highlights the importance of antenatal asthma education to ensure care is appropriately escalated when needed.<\/jats:p>","DOI":"10.1136\/bcr-2026-273663","type":"journal-article","created":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T13:50:12Z","timestamp":1784555412000},"page":"e273663","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["\u03b2\n                    <sub>2<\/sub>\n                    -agonist toxicity in pregnancy causing troponin elevation and fetal distress"],"prefix":"10.1136","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2637-2315","authenticated-orcid":false,"given":"William","family":"Stobie","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynaecology, Lismore Base Hospital, Lismore, New South Wales, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Farmey","family":"Joseph","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology, Lismore Base Hospital, Lismore, New South Wales, Australia"},{"name":"The University Centre for Rural Health, The University of Sydney, Lismore, New South Wales, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,7,20]]},"reference":[{"key":"2026090306051539000_19.7.e273663.1","unstructured":"Australian Bureau of Statistics . 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