A nurse reviews the arterial blood gas (ABG) values of a client admitted with pneumonia: pH, 7.32; PaCO2, 48 mm Hg; PaO2, 70 mm Hg; and HCO3, 24 mEq/L. What do these values indicate?
Metabolic Acidosis
Respiratory Acidosis
Metabolic Alkalosis
Respiratory Alkalosis
The Correct Answer is B
A. Metabolic Acidosis
Metabolic acidosis is characterized by a low pH and low bicarbonate (HCO3) level. In this case, the pH is low (indicating acidosis), but the bicarbonate level is within the normal range, which is inconsistent with metabolic acidosis.
B. Respiratory Acidosis
This is correct. Respiratory acidosis is characterized by an elevated partial pressure of carbon dioxide (PaCO2), leading to a decrease in pH. The ABG values in this case indicate elevated PaCO2 and a low pH, consistent with respiratory acidosis.
C. Metabolic Alkalosis
Metabolic alkalosis is characterized by a high pH and high bicarbonate (HCO3) level. In this case, the pH is low (indicating acidosis), which is inconsistent with metabolic alkalosis.
D. Respiratory Alkalosis
Respiratory alkalosis is characterized by a low partial pressure of carbon dioxide (PaCO2) and a high pH. In this case, the PaCO2 is elevated, which is inconsistent with respiratory alkalosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. It is rapidly absorbed, has a fast onset of action:
Explanation: This statement is incorrect. Glargine (Lantus) actually has a slow onset of action and a prolonged duration of action. It is formulated to provide a steady level of insulin in the body over an extended period.
B. Administer the total daily dosage in two doses:
Explanation: This is not the recommended administration for glargine. It is typically administered once daily to provide basal insulin coverage over a 24-hour period.
C. Draw up the drug first, then add regular insulin:
Explanation: Mixing glargine with other insulins is not recommended. Glargine should be administered separately to maintain its extended duration of action. It should not be mixed with other insulins in the same syringe.
D. Do not mix with other insulins:
Explanation: This is the correct statement. Glargine should not be mixed with other insulins. It should be administered alone to maintain its "peakless" basal coverage. Mixing it with other insulins could alter its pharmacokinetics and compromise its effectiveness.
Correct Answer is B
Explanation
A. Increase the intake of vitamin E to enhance absorption:
Explanation: Iron absorption can be enhanced by taking vitamin C, not vitamin E. Therefore, this statement is not accurate.
B. Iron will cause the stools to darken in color:
Explanation: This statement is accurate. Iron supplements can cause stools to become darker in color. This is a common and harmless side effect.
C. Take the iron with dairy products to enhance absorption:
Explanation: Calcium-containing foods and supplements can inhibit the absorption of iron. Therefore, it is recommended to avoid taking iron supplements with dairy products.
D. Limit foods high in fiber due to the risk for diarrhea:
Explanation: Iron supplements can cause constipation, not diarrhea. Therefore, limiting foods high in fiber is not necessary.
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