What vital sign is typically assessed first when entering a patient's room?

The respiratory rate is typically assessed first when entering a patient's room because it provides immediate insight into the patient's respiratory function and overall stability. Observing the respiratory rate can reveal potential issues such as respiratory distress or abnormalities that may require urgent attention. This vital sign is often reflective of the patient’s current health status, especially in emergency situations where respiratory compromise can quickly lead to serious complications.

By starting with the respiratory rate, the healthcare provider can establish a baseline for the patient’s ventilatory status and decide if further interventions or assessments are needed. After the respiratory rate is assessed, other vital signs like heart rate, blood pressure, and temperature can be measured in sequence to form a complete picture of the patient's condition.