[…] on chest x-ray." 20 Diagnostic Evaluation Electrocardiogram (ECG).
[ahcmedia.com]
Diagnostic Modalities The chest x-ray typically demonstrates cardiomegaly and increased pulmonary vascular markings, indicating pulmonary oedema.
[jpma.org.pk]
[…] with a viral prodrome and nonspecific respiratory or abdominal symptoms associated with tachycardia, hypotension, or cardiac rhythm abnormalities, even in the absence of cardiomegaly
[ahcmedia.com]