Some new guidelines to be aware of are the AHA Guidelines for the Management of Heart Failure. Full text is available free and while comprehensively covering chronic heart failure there is an interesting section on acute decompensated heart failure.
Evidence-based medicine enthusiasts might be interested in recommendations to consider dopamine, nesiritide, and ultrafiltration. These therapies also get a mention in the 2012 European Guidelines. I recommend you review the articles cited in the guidelines to make your own mind up.
Here are a couple of snippets you may find useful:
Snippet from American Guidelines: intravenous loop diuretic doses
“HF patients receiving loop diuretic therapy should receive an initial parenteral dose greater than or equal to their chronic oral daily dose; then dose should be serially adjusted.”
Snippet from European Guidelines: management algorithm for acute heart failure
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2013 ACCF/AHA Guideline for the Management of Heart Failure: Executive Summary
Circulation. 2013 Oct 15;128(16):1810-52 Free Full Text
ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure 2012
Eur Heart J. 2012 Jul;33(14):1787-847 Free Full Text