Correct!
1,2,3 or 4

Any of the listed treatments has been used (5). We used a combination of all 4 and the patient had a dramatic response to therapy. His troponin remained elevated and was not associated with any other features of cardiac injury.  There are reports of elevated troponins without myocardial infarction in patients with myasthenia gravis (6).

References

1. Claessens YE, Debray MP, Tubach F, et al. Early Chest Computed Tomography Scan to Assist Diagnosis and Guide Treatment Decision for Suspected Community-acquired Pneumonia. Am J Respir Crit Care Med. 2015 Oct 15;192(8):974-82. [CrossRef] [PubMed]
2. O'Driscoll BR, Howard LS, Earis J, Mak V; British Thoracic Society Emergency Oxygen Guideline Group; BTS Emergency Oxygen Guideline Development Group. BTS guideline for oxygen use in adults in healthcare and emergency settings. Thorax. 2017 Jun;72(Suppl 1):ii1-ii90. [CrossRef] [PubMed]
3. Schoser B, Fong E, Geberhiwot T, et al. Maximum inspiratory pressure as a clinically meaningful trial endpoint for neuromuscular diseases: a comprehensive review of the literature. Orphanet J Rare Dis. 2017 Mar 16;12(1):52. [CrossRef] [PubMed]
4. Drugs that may unmask or worsen myasthenia gravis. UpToDate. 2023. Available at: https://www.uptodate.com/contents/image?imageKey=NEURO%2F100362 (accessed 5/17/23).
5. Gilhus NE, Tzartos S, Evoli A, Palace J, Burns TM, Verschuuren JJGM. Myasthenia gravis. Nat Rev Dis Primers. 2019 May 2;5(1):30. [CrossRef] [PubMed]
6. Stavroulakis G, Papadopoulou M, Koutroulis G, Zouvelou V, Katsavochristos J, Georgiadis E, Baltogiannis C, Avrampos G. Myasthenia gravis. A potential cause of false positively elevated troponin T? Case report and brief review. Int J Cardiol. 2015 Nov 15;199:40-1. [CrossRef] [PubMed]

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