Heart failure

Mrs brown 78yr an old lady. admission to the Emergency Department at 6am after waking up with severe breathlessness. her family informed the nurse that the patient has a history of heart failure diagnosed 2yrs ago . Clinical Manifestations; .Severs dyspnoea .respiratory rate 24breath/min .Spo2 85% in room ​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​air . blood pressure 170/90mmHg . pulse rate 120 beats /min in Atrial fibrillation . auscultation of lungs identifies bilateral basal crackles .Diagnosisi Of acute Exacebation of Chronic failure was made. Q.1 Explain in oral presentation from A-G assessment the underlying pathophysiology of one clinical manifestation that Mrs brown presented with. Q.2 Explain one high priority nursing intervention you would do to improve the clinical manifestations​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​.