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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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robin121 robin121
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6 years ago
A 76-year-old patient is hospitalized with pneumonia. She has become increasingly confused throughout the shift. The nurse becomes concerned about her condition and contacts the health care provider who orders arterial blood gasses.
 
  The blood gasses show a pH of 7.33, PaCO2 of 47, PaO2 of 78 and bicarbonate of 26 . This indicates which of the following? A. Respiratory alkalosis
  B. Respiratory acidosis
  C. Metabolic alkalosis
  D. Metabolic acidosis
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#1
6 years ago
B
Respiratory acidosis is an increased arterial carbon dioxide concentration (PaCO2), excess carbonic acid (H2CO3), and an increased hydrogen ion concentration (pH less than 7.35). Hypoventilation causes respiratory acidosis, which causes the cerebrospinal fluid and brain cells to become acidic, producing neurological changes. Respiratory depression can also cause hypoxemia, resulting in further neurological impairment.
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