🫀 Left Sided Heart Failure: Key Signs & Symptoms for Nursing School

25 Apr 2025 · 1 min

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In this instructional segment, the presenter explains that left‑sided heart failure results from the left ventricle’s inability to pump sufficient blood, leading to reduced cardiac output. The decreased output causes systemic hypoperfusion, manifested as lowered oxygen saturation, weak peripheral pulses, pale and cool extremities, fatigue, weakness, mental status changes, and reduced urine output. The body compensates via respiratory mechanisms, producing an increased respiratory rate, productive cough, and shortness of breath as the lungs attempt to improve oxygen delivery. The speaker emphasizes the interdependence of heart and lungs and directs learners to Med‑Surg flashcards within the Nursing SOS resource for further study.

Chapters

Here's some key signs and symptoms to know for left sided heart failure. Now what's happening here is that the left side of the heart can't pump enough blood out to keep the organs happy so the cardiac output is decreased here during left sided heart failure. So what you're going to see is decreased oxygen saturation, weak peripheral pulses, pale and cool extremities, fatigue and weakness, mental stress changes and decreased urine output. This is all because of that decrease in cardiac output. There's just not enough blood going to the organs so the organs are not happy, they're not getting the oxygen that they need to function. Now an increased respiratory rate productive cough possibly and then shortness of breath. Now the lungs and the heart they're best friends so anytime the heart is in trouble the lungs are gonna wanna help so it's gonna increase that respiratory rate to try to get more oxygen to the body. Check out all these med surg flashcards inside the nursing SOS.