Pft Midterm Exam Questions With 100% Correct Answers

PFT Midterm Exam Questions With 100% Correct AnswersSpirometers that use a pneumotachograph determine FVC by: - Correct Answer-Integration of flow signalA flow-sensing device that measures pressure change across a fixed resistance: - Correct Answer-PneumotachographA volume-displacement spirometer that incorporates a piston-in-cylinder and a moving seal: - Correct Answer-Dry-rolling seal spirometerA volume-displacement spirometer that consists of three cylinders, one of which is inverted in water. - Correct Answer-Water-sealed spirometerA device with a disposable flow sensor that contains transducers that emit and receive sound in alternating directions. - Correct Answer-Ultrasonic spirometerA device with a vane or wheel that turns at a speed proportional to airflow: - Correct Answer-Turbine spirometerThe laboratory volume-displacement spirometer is being validated with a 3-liter calibration syringe. After injecting the completely filled syringe into the spirometer, the spirometer displays a reading of 2.80 liters at ATPS. Which of the following could be true? - Correct Answer-Spirometer's results are not within the range for acceptable validation.The syringe or connecting tubing has a leak.The spirometer has a leak.A patient's FEV1 multiplied by 40 will give an estimate of: - Correct Answer-MVVAccording to the 2005 ATS/ERS Spirometry Guideline, at least _______ acceptable forced spirometry maneuvers should be obtained, of which