Final answer:
Pulmonary edema is marked by difficulty breathing and chest pain due to excess fluid in the lungs' air sacs, often as a result of heart failure. Tachycardia, which refers to a high heart rate, may occur as a compensatory response in various cardiac conditions.
Step-by-step explanation:
Signs of Heart Failure and Pulmonary Edema
Heart failure occurs when the pumping action of the heart is impaired, leading to inadequate oxygenation of tissues. In cases where heart failure leads to pulmonary edema, the patient might experience difficulty breathing and chest pain. Pulmonary edema is characterized by excess fluid in the lungs' air sacs, resulting from the inability of the left ventricle to pump sufficient blood, causing a 'back up' of fluid into the pulmonary capillaries. This condition can drastically affect gas exchange in the lungs and is considered a medical emergency.
Understanding Reface Tachycardia
The term 'reface tachycardia' seems to be a typo or misunderstanding. However, in the context of heart conditions, tachycardia refers to a heart rate that's abnormally high. In someone experiencing heart failure or other cardiac conditions, tachycardia would be a compensatory mechanism where the heart tries to maintain an adequate level of blood circulation despite its impaired pumping ability.