A 55-year-old woman with a history of adrenal insufficiency, hypothyroidism, and hypertension presents with altered mental status in the setting of a pneumonia. She has been hypotensive and tachycardic. She is intubated in the emergency department. Her initial blood pressure was 80/40 mm Hg, with a heart rate of 130 bpm and temperature of 39.00C. Her WBC is 18,000 with a 10% bands. She had a respiratory rate of 10 prior to intubation. Her TSH returns to normal. She reportedly hasn't been taking her medications for the last 3 days.
|ABG||Basic Metabolic Panel|
|PaCO2||50 mm Hg||K||5.6 mEq/L|
|PaO2||55 mm Hg||Cl||110 mEq/L|
|HCO3||14 mEq/L||CO2||13 mEq/L|
Question 1 of 5
What is/are the primary acid-base disturbance(s) occurring in this case?
A - Metabolic acidosis only
B - Respiratory acidosis only
C - Metabolic acidosis and a respiratory acidosis
D - Metabolic alkalosis and a respiratory acidosis
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