CPFT/RPFT Exam – Questions & Answers What causes erroneous high measurements with Helium Dilution ✔️Ans - Leaks, Ruptured ear drum, failure of analyzer and the switch in occurred to early Helum Dilution is ✔️Ans - A closed system, measures FRC What obstructive disease is the VTG higher with the body box ✔️Ans - Emphysema Proper range of a 3L syring ✔️Ans - 2.895-3.105 Typical value of MVV ✔️Ans - 170 L/min Normal temp of reported ABG ✔️Ans - 37 degrees Celsius Normal venous ABG Levels ✔️Ans - PCO2- 46 torr, Po2- 40 torr
, PH-7.35
lower than arterial Acidosis ✔️Ans - PH is lower than 7.35 Unstable reading on blood gas analyzer ✔️Ans - worn or ruptured membrane Noisy or erratic reading on blood gas analyzer ✔️Ans - re-membrane, check solution/gas before Clot on membrane of ABG gas analyzer ✔️Ans - protein remover and 2 rinse cycles SVC and FVC in Normal lung function ✔️Ans - Approximately the same SVC is higher in obstruction FVC is higher question patient effort
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