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 B
Explanation
A. Increase the intake of vitamin E to enhance absorption:
While vitamin C can enhance iron absorption, vitamin E does not play a significant role in iron absorption. Vitamin C-rich foods can be advised to enhance iron absorption.
B. Iron will cause the stools to darken in color:
This statement is accurate. Iron supplements can cause stools to appear darker in color, often black or greenish-black. This change in stool color is normal and expected when taking iron supplements.
C. Take the iron with dairy products to enhance absorption:
Dairy products can inhibit iron absorption. It's better to take iron supplements with vitamin C-rich foods or orange juice to enhance absorption.
D. Limit foods high in fiber due to the risk for diarrhea:
Fiber-rich foods do not necessarily need to be limited when taking iron supplements. However, some individuals may experience constipation when taking iron supplements, in which case increasing fluid intake and dietary fiber can help alleviate constipation.
Correct Answer is D
Explanation
A. Flushed skin: Flushed or warm skin is more characteristic of hyperthyroidism, where there is an excess of thyroid hormones.
B. Palpitations: Palpitations or a rapid heartbeat are more characteristic of hyperthyroidism, where there is an excess of thyroid hormones.
C. Bulging eyes: Bulging or protruding eyes, known as exophthalmos, is a characteristic sign of Graves' disease, which is a specific type of hyperthyroidism.
D. Fatigue: This is correct. Fatigue is a common symptom of hypothyroidism, reflecting the overall slowing down of the body's processes.
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