What is the formula to calculate Minute Respiratory Volume (MRV)?

Minute Respiratory Volume (MRV) is defined as the total volume of air that is breathed in and out in one minute. This is calculated by multiplying the tidal volume (TV), which is the amount of air inhaled or exhaled during a normal breath, by the respiratory rate (RR), which is the number of breaths taken per minute. Therefore, the correct formula for MRV is determined by this relationship, resulting in the product of TV and RR. Understanding this formula is crucial for assessing pulmonary function and ventilation in respiratory physiology.