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Heart Failure | American Heart Association
https://www.heart.org/en/health-topics/heart-failure
WebThe American Heart Association wants to help you Rise Above Heart Failure (HF). Find out the warning signs of heart failure, also called congestive heart failure (CHF), learn about ejection fraction, and how to treat and manage your HF.
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Hydrogen fluoride - Wikipedia
https://en.wikipedia.org/wiki/Hydrogen_fluoride
WebHF is diatomic in the gas-phase. As a liquid, HF forms relatively strong hydrogen bonds, hence its relatively high boiling point. Solid HF consists of zig-zag chains of HF molecules. The HF molecules, with a short covalent H–F bond of 95 pm length, are linked to neighboring molecules by intermolecular H–F distances of 155 pm. [4] Liquid HF ...
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Hydrofluoric acid - Wikipedia
https://en.wikipedia.org/wiki/Hydrofluoric_acid
WebHydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colorless, acidic and highly corrosive. A common concentration is 49% (48-52%) but there are also stronger solutions (e.g. 70%) and pure HF has a …
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Hydrogen fluoride - American Chemical Society
https://www.acs.org/molecule-of-the-week/archive/h/hydrogen-fluoride.html
WebJul 12, 2021 · Hydrogen fluoride (HF) is an extremely toxic, corrosive gas and liquid. As the lightest of the hydrogen halides, it has a surprisingly high boiling point, higher even than that of hydrogen iodide.
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Heart Failure Signs and Symptoms | American Heart Association
https://www.heart.org/en/health-topics/heart-failure/warning-signs-of-heart-failure
WebJun 13, 2023 · Fluid builds up in the lungs (see above). Buildup of excess fluid in body tissues (edema) ... swelling in the feet, ankles, legs, fingers, abdomen and in other tissues and organs. As a result, weight gain is common. If you have heart failure, your heart doesn’t pump with enough force. This means that not enough blood is pumped out of the ...
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What is Heart Failure?
https://professional.heart.org/en/health-topics/heart-failure/what-is-heart-failure
WebMar 22, 2023 · The American Heart Association explains heart failure (HF), sometimes called congestive heart failure (CHF), as a chronic, progressive condition in which the heart muscle is unable to pump enough blood through the heart to meet the body's needs for blood and oxygen. Learn more.
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Heart failure - Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/heart-failure/symptoms-causes/syc-20373142
WebApr 20, 2023 · Overview. Heart failure occurs when the heart muscle doesn't pump blood as well as it should. When this happens, blood often backs up and fluid can build up in the lungs, causing shortness of breath. Certain heart conditions gradually leave the heart too weak or stiff to fill and pump blood properly.
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Universal Definition and Classification of Heart Failure: A Step in …
https://www.acc.org/latest-in-cardiology/articles/2021/07/12/12/31/universal-definition-and-classification-of-heart-failure
WebJul 12, 2021 · Quick Takes. The proposed universal definition describes HF as a clinical syndrome with symptoms and/or signs caused by a structural and/or functional cardiac abnormality and corroborated by elevated natriuretic peptide levels and/or objective evidence of pulmonary or systemic congestion. HF stages have been revised to …
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What is Heart Failure? | American Heart Association
https://www.heart.org/en/health-topics/heart-failure/what-is-heart-failure
WebMar 22, 2023 · The American Heart Association explains heart failure (HF), sometimes called congestive heart failure (CHF), as a chronic, progressive condition in which the heart muscle is unable to pump enough blood through the heart to meet the body's needs for blood and oxygen. Learn more.
DA: 73 PA: 13 MOZ Rank: 89
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2022 AHA/ACC/HFSA Guideline for the Management of Heart …
https://www.ahajournals.org/doi/10.1161/CIR.0000000000001063
WebApr 1, 2022 · HF Description. HF is a complex clinical syndrome with symptoms and signs that result from any structural or functional impairment of ventricular filling or ejection of blood. The writing committee recognizes that asymptomatic stages with structural heart disease or cardiomyopathies are not covered under the above definition as having HF.
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