Emergency Management of Acute Heart Failure
First, position the patient in an upright sitting posture with both legs dangling over the edge of the bed. Provide reassurance to alleviate excessive anxiety, tension, or fear.
Second, administer high-flow oxygen therapy to relieve systemic hypoxia.
Third, advise the patient to limit fluid intake, as excessive water consumption increases intravascular volume and may exacerbate heart failure.
Fourth, administer anti-heart-failure medications, such as positive inotropes and diuretics. Morphine is widely recognized as a highly effective agent for acute left-sided heart failure due to its sedative and analgesic effects, reduction of myocardial oxygen demand, vasodilatory action, and ability to decrease both preload and afterload on the heart.
Fifth, rapidly lower the patient’s blood pressure to the target range, since elevated blood pressure increases cardiac afterload, thereby impeding correction of heart failure.