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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A man connected to a body plethysmograph for estimation of FRC inspires against a closed glottis. Which of the following statements is true?
assistant
The correct answer is  Plethysmography measures changes in volume in different areas of your body. It measures these changes with blood pressure cuffs or other sensors. These are attached to a machine called a plethysmograph. Plethysmography is especially effective in detecting changes caused by blood flow. It can help your doctor determine if you have a blood clot in your arm or leg. It can also help your doctor calculate the volume of air your lungs can hold Ref: guyton and hall textbook of medical physiology 12 edition page number:316,317,318