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 A
Explanation
A. With the meal:
Insulin Lispro is a rapid-acting insulin that is designed to be taken just before or with meals.
It helps control the rise in blood sugar that occurs after eating.
B. Post-prandial:
"Post-prandial" refers to after a meal. Insulin Lispro is usually administered before or with a meal to cover the increase in blood glucose that happens after eating.
C. Pre-prandial:
"Pre-prandial" refers to before a meal. This is accurate for Insulin Lispro, as it is given shortly before or with meals.
D. AC/HS:
"AC" stands for "ante cibum," which means before meals, and "HS" stands for "hora somni," which means at bedtime. This terminology is more commonly associated with the timing of oral medications rather than insulin.
Correct Answer is A
Explanation
A. Frequent mood changes:
This is correct. Hyperthyroidism is associated with increased levels of thyroid hormones, which can affect the nervous system and lead to mood changes, including irritability and anxiety.
B. Weight gain of 11 lbs in 3 weeks:
Weight loss is more characteristic of hyperthyroidism due to increased metabolism. Rapid weight gain is not typical.
C. Sensitivity to cold:
Sensitivity to cold is more characteristic of hypothyroidism, where there is a deficiency of thyroid hormones.
D. Constipation:
Constipation is more commonly associated with hypothyroidism, where there is a slowing of the digestive system.
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