What Are “Vital Signs”?

The term “vital signs” refers to a checklist of four measurements that give a snapshot of a person’s overall health. These measurements are body temperature, heart rate, respiration rate, and blood pressure. Vital signs are usually checked during every medical exam. Body Temperature Body temperature is the most familiar of the four vital signs, since…

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Pacemakers: Just the FAQs

The heart of a healthy adult at rest beats between 60 and 100 times a minute. Each beat is initiated by a group of cells in the upper right chamber of the heart that acts as a sort of “spark plug,” generating an electrical signal that travels through the heart. If the heart’s natural “pacemaker”…

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