Case of the Week: Acid Base Disturbance #6
From AccessMedicine
Case
A 23-year-old noncompliant diabetic presents to the emergency room with lethargy, abdominal pain, nausea, and malaise. The patient has a history of DKA. His blood glucose on arrival is 340 mg/dL. His urinalysis is positive for ketones.
| Laboratory Data: | ||||
| ABG | Basic Metabolic Panel | |||
| pH | 6.82 | Na | 129 mEq/L | |
| PaCO2 | 16 mm Hg | K | 6.2 mEq/L | |
| PaO2 | 93 mm Hg | Cl | 90 mEq/L | |
| HCO3 | < 5 mEq/L | CO2 | 5 mEq/L | |
| BUN | 44 mg/dL | |||
| Cr | 1.6 mg/dL | |||
| Albumin | 4.0 g/dL | |||
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 alkalosis
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