click below
click below
Normal Size Small Size show me how
PFT
Respiratory Ch. 5 Gary White
Question | Answer |
---|---|
Normal tidal volume may be estimated at: a. 2-3ml/kg of body weight b. 3-5ml/kg of normal body weight c. 3-7ml/kg of normal body weight d. 5-7ml/kg of normal body weight | b. 3-5ml/kg of normal body weight |
Which of the following respirometers operate using a rotating vane? a. Collins spirometer b. Wright peak flowmeter c. Wright respirometer d. Boehringer inspiratory force manometer | c. Wright respirometer |
It would be appropriate to use the Wright respirometer to measure which of the following parameters? I. Tidal volumes II. vital capacity (VC) III. Forced vital capacity (FRC) IV. Peak expiratory flow rate (PEFR) V. minute volume a. I, II, III b. | d. I, II, V |
Which of the following maximal inspiratory forces indicates a reduced ventilatory reserve or possible muscle weakness? a. -60 cm H2O b. -50 psi c. -30 cm H2O d. -20 cm H2O | d. -20 cm H2O |
Which of the following is used to assess the effectiveness of a bronchodilator? a. maximal inspiratory pressure b. vital capacity c. tidal volume d. peak expiratory flow | d. peak expiratory flow |
The volumes measured during a PFT are mesured at: a. BTPS b. ATPS c. BTPD d. STPD | b. ATPS |
The vital capacity includes: I. tidal volume II. inspiratory reserve volume (IRV) III. expiratory reserve volume (ERV) IV. residual volume (RV) a. I, II b. II, III c. I, II, III d. I, II, IV | c. I, II, III |
Which of the following are derived from a FVC tracing? I. tidal volume II. Forced vital capacity (FVC) III. FEV1 IV. FEF 200-1200 V. FEF 25-75% VI. MVV a. I, II, III, V b. I, III, IV, V c. II, III, IV, VI d. II, III, IV, V | c. II, II, IV, VI |
A subject's MVV tracing shows 15 breaths for a 32-mm horizontal distance; the patient's actual rate in breaths per minute is (assuming a kymograph speed of 160 mm/min): a. 15 bpm b. 30 bpm c. 50 bpm d. 75 bpm | d. 75 bpm |
A subject performs an MVV maneuver for 12 seconds, the total volume expired in this interval is 32 liters. What is the MVV volume in liters per minute? a. 32 Lpm b. 64 Lpm c. 160 Lpm d. 128 Lpm | c. 160 Lpm |