<s>[INST] What Are the Stages of Congestive Heart Failure? [/INST] Patients can expect four congestive heart failure stages, from those at risk of developing heart failure to advanced levels of congestive heart failure.

Based on risk factors, family history and/or medical conditions, a patient is deemed at a high risk of developing congestive heart failure.
Symptoms may not have presented in this stage, but a doctor has found systolic left ventricular dysfunction and an echocardiogram reads a diminished ejection fraction, often 40% or less.
At this point some symptoms of congestive heart failure have presented and a doctor has made a congestive heart failure diagnosis.
The final stage of congestive heart failure shows worsening symptoms that are often unresponsive to treatments. Source: BRIGHAM AND WOMENS. Link: https://www.brighamandwomens.org/heart-and-vascular-center/diseases-and-conditions/congestive-heart-failure-cardiomyopathy. Field: Cardiovascular. Disease: Heart Failure </s>