Acute Pulmonary Edema Flashcards
Worst( most severe) form of CHF
Acute pulmonary edema( rapid fluid accumulation in lungs)
Acute shortness of breath with rales, JVD, S3 gallop, edema, orthopnea. May be ascites& enlargement of liver/spleen from chronic passive congestion of R side of heart
Acute pulmonary edema
What is the best initial test?
• brain natriuretic peptid
( if ds not clear, N= exclude CHF)
• chest Xray
Chest X ray: vascular congestion, filling of blood vessels toward head( cephalization of flow), flow mostly at base bs of gravity, enlargement of heart, effusion
acute pulmonary edema
Engorged pulmonary veins. Cefalization of flow
Pulmonary edema
Oximetry/arterial blood gas during acute pulmonary edema
- Hypoxia
- respiratory alkalosis from hyperventilation
- CO2 leaves more easily than oxygen enters
If acute pulmonary edema is from arrhythmia fix it fast with
Cardioversion
Acute pulmonary edema must be done on all pts
Echo KG- distinguish systolic from diastolic
Acute pulmonary edema. Best initial step in management
Intravenous furosemide
Preload reduction. Acute pulmonary edema tx
Oxygen, loop diuretics( furosemide or bumetinide), morphine, nitrates
Preload reduction hasn’t been effective. Next step?
Positive inotropic agents
• Dobutamine in ICU
• Amrinone and milrinone
• Phosphodiesterade inh that perform the same role( incr. contractility, decrease afterload)
No benefit in acute setting, too slow, needs several weeks to work
Digoxin
Afterload reduction in acute pulmonary edema
ACEi, ARB, used on discharge, nitroprusside in ICU, hydralazine alternate for ACE/ARB