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. Consuming excessive animal protein can increase the risk of kidney stones due to the metabolism of protein leading to increased excretion of calcium and oxalate.
B. Restricting calcium intake is not recommended for preventing calcium oxalate kidney stones. Adequate calcium intake from dietary sources can actually help prevent kidney stone formation by binding to oxalate in the intestines and reducing its absorption.
C. High doses of vitamin C can increase oxalate levels in the urine, which can contribute to the formation of calcium oxalate kidney stones.
D. Adequate fluid intake, typically recommended at least 3 liters (about 100 ounces) per day, helps dilute urine and reduce the concentration of stone-forming substances, thereby reducing the risk of kidney stone formation.
Correct Answer is A
Explanation
A. Hyperkalemia is a common finding in the oliguric phase of acute kidney injury due to impaired renal function, leading to decreased potassium excretion.
B. Hypomagnesemia is not typically associated with the oliguric phase of acute kidney injury.
C. In the oliguric phase, the glomerular filtration rate is typically decreased, not increased.
D. In acute kidney injury, creatinine levels typically rise due to decreased renal function, rather than decrease.
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