Which of these is considered a vital sign?

Blood pressure is indeed considered a vital sign. Vital signs are measurements that indicate the basic functions of the body and provide critical information about a patient’s health status. Blood pressure specifically measures the force of blood against the walls of the arteries as the heart pumps it around the body. It is crucial for assessing cardiovascular health and can help identify conditions such as hypertension or hypotension.

While pulse rate, respiratory rate, and body temperature are also vital signs, each serves to provide different insights into the body’s physiological condition. The inclusion of blood pressure within vital signs emphasizes its importance in monitoring a patient's circulatory system and overall well-being.