noun
- An instrument that measures changes in the volume of a body part or organ, typically used to assess blood flow or air volume in the lungs.
Usage: Medical/scientific term; Often used in clinical diagnostics and research
Examples
- The doctor used a plethysmograph to measure blood flow in the patient's leg.
- A plethysmograph can detect changes in limb volume during exercise.
- The respiratory plethysmograph recorded the patient's breathing patterns during sleep.
- Plethysmograph readings helped diagnose the circulation problem.
- The technician calibrated the plethysmograph before taking measurements.