Physiology of Pain

Deborah L Ellison1

  • 1School of Nursing, Austin Peay State University, 601 College Street, Clarksville, TN 37043, USA.

Summary

Nurses must understand pain physiology to care for acutely ill patients with chronic conditions. This knowledge is essential for ethical and legal nursing practice when managing patient pain.

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Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
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