Nurses must incorporate the following guidelines to know where, when, and how to measure vital signs. Any deviation from the normal range should be recorded and communicated to other healthcare providers to best plan for interventions. Before every test, equipment should be checked and selected based on the patient’s condition and characteristics; for example, a nurse should choose a bigger cuff to measure the blood pressure of an obese patient. Nurses must know the patient’s baseline readings to compare any change in condition over time. They should also check the patient’s history to determine if they are on any medications or treatments that could interfere with the values. Vital signs must be assessed before administering certain medications to avoid severe complications. Environmental factors that could alter the values should be minimized; for example, measuring a patient's temperature in a humid environment may change the readings. Nurses must collaborate with team members to decide the frequency of assessing vital signs. Finally, the patient and caregiver should be educated about the significance of vital signs