🩺 General MedicineClinicalSlide to see

Left ventricular ejection fraction

Slide the EF to classify heart failure.

Slide the ejection fraction (stroke volume ÷ end-diastolic volume).

60%

10%75%

Preserved / normal

≥ 50% (HFpEF still possible with symptoms).

Go deeper

See a real image and a video lecture, or ask the AI Tutor to explain it your way.

Blood pressure categories

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Serum potassium

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Serum sodium

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Educational only — not clinical advice. Always confirm with your prescribed textbooks.

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