Vital signs are indicators of a patient's health condition and are crucial for emergency medical technicians (EMTs) to assess patients in the field. EMTs need to be proficient in measuring and interpreting vital signs accurately. This article provides a review of vital signs for EMT students, covering topics such as heart rate, blood pressure, respiratory rate, and body temperature. Students will learn how to measure each vital sign correctly and understand the normal ranges. This review will help EMT students gain the necessary skills and knowledge to provide effective patient care.