One of your duties as a medical assistant will be to measure and record the patient's vital signs, weight, and height. Gathering this information is crucial to the outcome of the patient's visit. Remember that the physician relies on these data as they appear on the chart from visit to visit and when making a diagnosis. Using the proper techniques and the same equipment each and every time you measure a patient's weight, height, and vital signs will help you to provide information that is precise and accurate.