Before a patient does an FVC test, the pneumotachometer shou…
Before a patient does an FVC test, the pneumotachometer should have the following done: A.The gas analyzer should be calibrated. B.A CO2-absorbing material should be placed in line with the circuit. C.A 3-L volume should be pumped into and out of the circuit to check for leaks. D.The kymograph speeds should be checked.