- Complete blood count with platelets
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- Serum electrolytes, blood urea nitrogen, creatinine, calcium, magnesium, phosphate
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- Brain natriuretic peptide (BNP)
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- Prothrombin time, activated partial thromboplastin time, fibrinogen, D-Dimer
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- Complement 3 and complement 4
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- Blood type and antibody screening (if not done at admission)
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- Plasma and urinary histamine*
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