TMC - Mechanical Ventilation

TMC - Mechanical Ventilation C. - During a routine ventilator parameter check on a patient, you notice the low pressure alarm is being briefly activated prior to each breath. Which of the following is most likely the cause? A. the patient is fighting the ventilator B. the flow rate is set too fast C. the alarm delay is set too short D. the peak pressure limit is set too high C. - A 52-year-old, 5' 9" tall male patient weighing 85 kg (187 lb) is being mechanically ventilated. An arterial blood gas has been obtained. Ventilatory data and blood gas results are below: Mode: Assist/Control FIO2: 0.40 Mandatory rate: 10 Total rate: 10 VT: 650 mLPEEP: 5 cm H2O Mechanical VD: 100 mL pH: 7.28 PaCO2: 74 torrPaO2: 57 torrSaO2: 86% HCO3-: 23 mEq/L BE: 0 mEq/L Which of the following changes should be recommended at this time? A. Decrease the VT to 550 mL B. Decrease the mandatory rate to 8 C. Decrease the mechanical deadspace D. Decrease the FIO2 to 0.35 B. - A spontaneously breathing 76-year-old patient who weighs 60 kg (132 lb) is on an FIO2 of 0.45 via a trach collar. He has had a change in his tidal volume from 600 mL to 300 mL and his respiratory rate went from 12 /min to 24 /min. Which of the following changed due to the change in the tidal volume and rate? A. Minute ventilation B. Alveolar ventilation C. Anatomical deadspace D. Mechanical deadspace A. - Which of the following would be most helpful in determining if a patient is developing ventilatory failure? A. Arterial blood gas B. Blood pressure C. Vital capacity D. Hematocrit C. - An obese patient is being weaned from the ventilator following cholecystectomy. Arterial blood gas results reveal:pH: 7.40 PaO2: 96 torrPaCO2: 43 torrSaO2: 94% The patient is currently on: Tidal volume 650 mL, SIMV mandatory rate 4 /min, PEEP 5 cm H2O, and FIO2 0.35 even though she is not fully conscious. What should the respiratory therapist recommend at this time? A. Extubate B. Re-evaluate in 1 hour C. Place on a T-piece at a FIO2 0.45 D. Repeat arterial blood gases in 30 minutes D. - A 5' 10", 80 kg (176 lbs) male patient with multiple trauma from a motorcycle accident has developed ARDS and is being ventilated at the following settings: Mode: VC, SIMV VT: 500 mLSet Rate: 14 br/min. FIO2: 0.60 PEEP: 12 cm H2OArterial blood gas results reveal: