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While abdominal CT scan is the most accurate test for gastric perforation, it is not the best initial test due to the urgent nature of the disease. Abdominal CT is the most accurate test to diagnose intrabdominal inflammatory diseases such as diverticulitis and pancreatitis. Oral contrast is critical when performing abdominal CTs, as it helps to outline the bowel against other organs that may become pressed against it. +
This is unlikely due to the absence of classic symptoms of malignancy in this patient such as weight loss and derangement of laboratory parameters. +
The diagnosis of Kawasaki disease is mainly clinical. Although investigations such as CBC, ESR, C-reactive protein, and liver function tests may aid in the diagnosis, the initiation of high dose aspirin therapy is paramount whenever there is a high suspicion of the disease based on symptoms and physical examination. +
Hemosiderin-laden macrophages in BAL may be helpful in the diagnosis of diffuse pulmonary hemorrhage syndromes and diffuse interstitial pulmonary diseases (DIPD). They are also known as "heart failure cells since they may be observed in patients with congestive heart failure. +
Collagen vascular disease induced pericarditis will give a clear transudative pericardial effusion. +
Post-cardiac injury pericarditis, also known as post-myocardial infarction pericarditis has similar clinical presentation, but it occurs 2-4 days following an MI. The pathophysiology is thought to be of autoimmune origin due to a reaction to the myocardial neo-antigens. +
Pulsus bigeminus is a cardiovascular phenomenon characterized by groups of two heartbeats close together followed by a longer pause. The second pulse is weaker than the first. It is caused by premature contractions, usually of the ventricles, after every other beat. +
Chest CT is not indicated in a person suspected of having pericarditis or acute coronary syndrome. +
Post-cardiac injury pericarditis, also known as post-myocardial infarction pericarditis presents the same clinical picture, except that it occurs within the first 2-4 days following an MI.The pathophysiology is thought to be of autoimmune origin, which is a reaction to myocardial neo-antigens. +
Pulsus bigeminus is a cardiovascular phenomenon characterized by groups of two heartbeats close together followed by a longer pause. The second pulse is weaker than the first. It is caused by premature contractions, usually of the ventricles, after every other beat. +
Chest CT is not indicated in a person suspected of having pericarditis or acute coronary syndrome. +