George Kent is a 54-year-old widower with a history of chronic obstructive pulmonary disease and was rushed to the emergency department with increasing shortness of breath, pyrexia, and a productive cough with yellow-green sputum. He has difficulty communicating because of his inability to complete a sentence. One of his sons, Jacob, says he has been unwell for three days. Upon examination, crackles and wheezes can be heard in the lower lobes; he has tachycardia and a bounding pulse. Measurement of arterial blood gas shows pH 7.3, PaCO2 68 mm Hg, HCO3 28 mmol/L and Pa02 60 mm Hg.
How would you interpret this?
Metabolic Acidosis. Partially Compensated
Respiratory Acidosis, Uncompensated
Respiratory Acidosis, Partially Compensated
Metabolic Alkalosis Uncompensated
The Correct Answer is C
A. Metabolic acidosis would involve a low pH and low bicarbonate level, which is not evident in the given arterial blood gas results.
B. The low pH (acidosis) and high PaCO2 (respiratory component) indicate respiratory acidosis. The increased HCO3 (normal range of 22-26 mEq/L), suggests a renal compensatory mechanism attempting to normalize the pH.
C. George Kent's arterial blood gas values indicate a lower pH and an elevated PaCO2, which are consistent with respiratory acidosis. The increased HCO3 ((normal range of 22-26 mEq/L), suggests a renal compensatory mechanism attempting to normalize the pH.
D. Metabolic alkalosis is not supported by the given arterial blood gas results.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. This statement describes the cause of diabetes mellitus, not Addison's disease.
B. This statement describes the cause of acromegaly, not Addison's disease.
C. This statement describes the cause of hyperparathyroidism, not Addison's disease.
D. This is the correct explanation of the cause of Addison's disease, which involves adrenal insufficiency.
Correct Answer is B
Explanation
A. While electrolyte imbalances can occur in nephrotic syndrome, hypomagnesemia is not typically associated with corticosteroid therapy.
B. Corticosteroid therapy can lead to increased urinary potassium loss and subsequent hypokalemia.
C. Corticosteroid therapy is not typically associated with hyperkalemia.
D. Hypermagnesemia is not typically associated with nephrotic syndrome or corticosteroid therapy.
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