A super syringe is used to calibrate which equipment?

• A. Pneumotachometer
• B. Spirometer
• C. Plethysmograph
• D. Kympograph

Answer: (B)

Calibration of spirometry relies on delivering a known volume of air from a calibrated syringe to the device. The super syringe provides precise, repeatable volumes that the spirometer uses to verify accuracy across the measurement range and at different flow rates. By injecting these exact volumes, you can confirm that the spirometer’s volume readouts are correct and that the system responds linearly to airflow, which is essential for trustworthy lung function testing. Other devices have different calibration needs: a pneumotachometer may be checked for flow accuracy, but the classic and most direct tool for validating spirometer volumes is a calibration syringe like the super syringe. Plethysmographs and kymographs use different calibration approaches and aren’t typically calibrated with this syringe.