Arizona Certified Nursing Assistant (CNA) Practice Test

The term vital signs refer to which of the following measurements?

1. Heart rate and blood pressure

2. Temperature, pulse, and respirations

3. Weight and height

4. Oxygen saturation and blood glucose

The correct answer is: Temperature, pulse, and respirations

Vital signs are a critical set of measurements that provide essential information about a person's health status. The correct answer encompasses three key indicators: temperature, pulse, and respirations. These measurements help assess the body’s basic physiological functions and can indicate if a person is experiencing a medical issue. Temperature reflects the body’s ability to generate and lose heat, and it can signal infection or other health conditions if abnormal. The pulse measures heart rate and can provide insights into cardiovascular health, including heart rhythm and strength. Respirations indicate how well air is being exchanged in the lungs; changes in this rate can indicate respiratory issues or distress. While heart rate and blood pressure are important components of overall health assessment, they are typically considered subsets of vital signs rather than the complete set. Weight and height are valuable in assessing growth and nutritional status but do not fall under the definition of vital signs. Similarly, oxygen saturation and blood glucose levels are important health indicators but are not part of the classic set of vital signs. Thus, the set of temperature, pulse, and respirations accurately represents the traditional definition of vital signs used in healthcare.