TMC - Mechanical Ventilation final exam 2024 Question and Answers

TMC - Mechanical Ventilation final exam 2024 Question and Answers A 80 kg (176 lb) patient with pulmonary fibrosis is being mechanically ventilated with a volume-controlled ventilator at the following settings: Mode: SIMV VT: 700 mL Mandatory rate: 15 Total rate: 15 FIO2: 0.45 PEEP: +10 I:E Ratio: 1:2 PIP: 50 cm H2OArterial Blood Gas analysis reveals the following :pH: 7.34 PaCO2: 42 torr PaO2: 55 torr HCO3-: 22 mEq/L SaO2: 88% The respiratory therapist should recommend: A. increasing the FIO2 to 60%. B. decreasing the respiratory rate. C. increase the PEEP level to 20 cm H2O. D. changing to pressure control mode. A. An adolescent patient admitted with a drug overdose is being mechanically ventilated at the following settings: Mode: PC, A/C Set Rate: 16 br/min Flow: 25 L/min Pressure limit: 40 cm H2O FIO2: 0.30 Exhaled VT: 500 mL The respiratory therapist observes wide fluctuations on the pressure manometer during inspiration. The most appropriate action would be to A. sedate the patient. B. increase the pressure limit. C. increase the flowrate. D. decrease the trigger setting. C. A 52-year-old, 5' 9" tall male patient who weighs 85 kg (187 lb) is being mechanically ventilated. An arterial blood gas has been obtained. Ventilatory data and blood gas results are below: Mode: VC, A/C FIO2: 0.40 Set rate: 10 br/min Total rate: 10 br/min VT: 550 mL PEEP: 5 cm H2O Mechanical VD: 50 mL pH: 7.28PaCO2: 74 torr PaO2: 57 torr SaO2: 86% HCO3-: 23 mEq/L BE: 0 mEq/L The respiratory therapist should increase the A. VT to 700 mL. B. set rate to 14 br/min. C. FIO2 to 0.65. D. PEEP to 15 cm H2O. B. A 60-year-old male patient weighs 80 kg (176 lb) and is on a volume-cycled ventilator at a set VT of 800 mL, a peak pressure reading of 65 cm H2O, exhaled VT measured at 760 mL, peak inspiratory flowrate is 60 L/min., a plateau pressure reading of 58 cm H2O and a PEEP of 5 cm H2O. Which of the following is most likely occurring at this time? A. Dynamic compliance is decreasing B. Static compliance is increasing C. Airway resistance is increasing D. Thoracic compliance is increasing A. An infant on a high frequency jet ventilator (rate of 150 b/m) has the following arterial blood gases: pH: 7.30 PaO2: 60 torr PaCO2: 50 torr HCO3-: 21 mEq/L Which of the following changes would best help to improve these results? A. Increase the inspiratory time B. Increase the drive pressure C. Increase the frequency to 190 br/min D. Increase the FIO2 B. A 48-year-old female patient is intubated and being mechanically ventilated with a volumecycled ventilator. The following parameters were obtained from the ventilator flow sheet:Based on this information, the respiratory therapist should conclude that A. airway resistance is increasing. B. compliance is decreasing. C. SpO2 measurement is inconsistent with the data obtained. D. a decrease in shunt is occurring. A. A 80 kg (176 lb) male suffering from acute respiratory distress syndrome is being mechanically ventilated at the following settings: Mode: VC, A/C Tidal Volume: 500 mL Set Rate: 10 br/min Total Rate: 10 br/min