[Answered]: A 57 year-old woman was being treated for urosepsis

A 57 year-old woman was being treated for urosepsis. Subsequently, the patient went into Acute Respiratory Distress Syndrome (ARDS) and was intubated a day ago. Initially, the oxygen saturations improved to the mid-90% range on an FIO2 of 50%, but in the past 2 hours, the nurse has had to increase the FIO2 up to 70%. The patient is on a PEEP of 5 cm H2O, SIMV 16, tidal volume 700. The nurse drew an arterial blood gases (ABGs) which shows pH 7.50, pCO2 32, PO2 58, HCO3- 22. The patient’s repeat chest x-ray shows diffuse bilateral infiltrates. An echocardiogram performed earlier in the day revealed normal left ventricular function. What assessment data supports a diagnosis of Acute Respiratory Distress Syndrome (ARDS)? Describe the ventilator setting (tidal volume, SIMV, FiO2, Peep) and what they mean. Indicate how adding PEEP to the ventilator setting can help the patient. What are some concerns with using PEEP? Discuss pharmacologic medications that may be used with the mechanical ventilator and how the peripheral nerve stimulator is used. Include ideal results for the train-of-four.