Which of the following is NOT a basic vital sign?

Vital signs are essential measurements that provide critical information about a patient's physiological status. The basic vital signs typically include respiratory rate, blood pressure, heart rate, and body temperature. These parameters reflect the body's basic functions and help assess a person's health and identify any potential medical issues.

Blood glucose level, while an important aspect of monitoring health, particularly in conditions like diabetes, is classified as a laboratory value rather than a basic vital sign. It does not fall into the standard measurements that are routinely monitored in a clinical setting to assess immediate health status. Instead, it may be checked separately or as part of a comprehensive metabolic panel.

By recognizing the core components of vital signs, it becomes clear that blood glucose level stands apart from the other options, which are directly tied to fundamental bodily functions and immediate clinical assessment.