Which of the following indicators are useful in assessing respiratory muscle strength?
I. maximum voluntary ventilation (MVV)
II. forced vital capacity (FVC)
III. dead space?to?tidal volume ratio (VD/V_T)
IV. maximum inspiratory pressure (MIP)

Question

Quizplus · Accepted Answer

Maximum voluntary ventilation (MVV), forced vital capacity (FVC), and maximum inspiratory pressure (MIP) are all useful indicators in assessing respiratory muscle strength. MVV measures the maximum amount of air that can be inhaled and exhaled within a minute, reflecting respiratory endurance. FVC assesses the volume of air that can be forcefully exhaled after a full inhalation, indicating the strength of the respiratory muscles. MIP measures the maximum pressure that can be generated by the inspiratory muscles, directly assessing muscle strength. The dead space to tidal volume ratio (VD/VT) is not directly related to muscle strength but rather to ventilation efficiency and gas exchange.

Which of the Following Indicators Are Useful in Assessing Respiratory