A 168-cm (5-ft 6-in), 62-kg (136-lb) 39-year-old female is r…

A 168-cm (5-ft 6-in), 62-kg (136-lb) 39-year-old female is receiving PC, A/C ventilation.  The following data are available:   FIO2           0.40 Mandatory rate         15 Total rate         15 Set inspiratory pressure         20 cm H2O Exhaled VT       620 mL I:E           1:4 PEEP         10 cm H2O     pH            7.52 PaCO2          26 mm Hg PaO2        110 mm Hg HCO3-          21 mEq/L BE            0 mEq/L SaO2 (calc)           98%   A respiratory therapist should?

A respiratory therapist is caring for a patient who has ARDS…

A respiratory therapist is caring for a patient who has ARDS.  Blood pressure is 90/60 mm Hg on Vasopressin.  The patient is receiving PC, A/C ventilation with the following settings:   FIO2      1.0  Mandatory rate    20  PIP   30 cm H2O  PEEP    16 cm H2O    ABG analysis shows the following:   pH       7.36  PCO2     44 mm Hg  PO2     50 mm Hg  HCO3-     25 mEq/L  BE      -1 mEq/L  SO2 (calc)     82%    A chest radiograph shows bilateral lower lobe infiltrates.  Which of the following should the therapist do?