System Fundamentals
"The heart is the only organ that works 24/7 without rest. Understanding its mechanics is the foundation of acute nursing care."
The skin is the largest organ (1.5–2 m², 15% of body weight), forming the primary physical, immunological, and thermoregulatory barrier. It synthesizes vitamin D, provides sensory input, and plays a central role in nursing care through wound management, pressure injury prevention, and burn resuscitation.
Key Concept
Perfusion: The continuous passage of blood through capillaries to tissue.
Nursing Alert
Inadequate cardiac output leads to rapid organ failure.
Module Progress
Readiness Score64%
Learning Aids
- ECG Interpretation Guide
- Cardiac Cycle Animation
- Clinical Murmur Library