Case 4: Following an automobile accident, a 19 year old male is admitted to the hospital. He has sustained multiple burns, severe pulmonary contusions, and has aspirated. He is admitted to the ICU, intubated and placed on a ventilator with initial settings of A/C 500 x 16 1.0 +10 PEEP. A PAC is inserted and ABG’sare drawn after 30 minutes of mechanical ventilation. CXR reveals correct placement of the ETT and PAC the presence of bilateral infiltrates. The ABG results indicate that the patient is experiencing
Case 4: Following an automobile accident, a 19 year old male is admitted to the hospital. He has sustained multiple burns, severe pulmonary contusions, and has aspirated. He is admitted to the ICU, intubated and placed on a ventilator with initial settings of
A/C 500 x 16 1.0 +10 PEEP. A PAC is inserted and ABG’sare drawn after 30 minutes of mechanical ventilation. CXR reveals correct placement of the ETT and
PAC the presence of bilateral infiltrates.
The ABG results indicate that the patient is experiencing respiratory alkalosis (elevated pH and decreased PaCO2), severe hypoxemia (low PaO 2 and SaO 2).
Part 1: The patient's systemic vascular resistance (SVR) was approximately 1317 dynes/sec/cm^-5
Part 2: The patient's pulmonary vascular resistance (PVR) was approximately 420 dynes/sec/cm^-5.
Part 3: Patient's arterial-venous oxygen content difference (Ca-Vo 2) is 18.648 mLO2/dL
Part 4: The patient's oxygen extraction ratio (O2ER) is approximately 98.03%
What is clinically happening to the patient? Please explain.
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