A patient's ABG shows: pH 7.32. PaCO2 50 mmHg. HCO3 24 mEq/L. What is the correct diagnosis?
Metabolic acidosis
Respiratory acidosis
Respiratory alkalosis
Metabolic alkalosis
The Correct Answer is B
A. Metabolic acidosis would be indicated by a low pH and a low HCO3, which is not present in this case since HCO3 is normal.
B. The pH of 7.32 indicates acidemia, and a PaCO2 of 50 mmHg suggests respiratory acidosis as the body is retaining carbon dioxide, contributing to the low pH. The HCO3 is normal, indicating that there is no metabolic compensation occurring.
C. Respiratory alkalosis would show a high pH and low PaCO2, which is not the case here.
D. Metabolic alkalosis would present with a high pH and elevated HCO3, which is also not present in these ABG results.
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View Related questions
Correct Answer is A
Explanation
A. Oliguria, or decreased urine output, is a common finding in hypovolemia due to reduced renal perfusion and decreased blood flow to the kidneys.
B. Hypertension is unlikely in hypovolemia; instead, clients typically exhibit hypotension due to decreased circulating blood volume.
C. Bradycardia is not a typical finding in hypovolemia; instead, tachycardia is more commonly observed as the body compensates for reduced blood volume.
D. Peripheral edema is associated with fluid overload rather than hypovolemia, as a decrease in blood volume usually leads to less fluid accumulation in the tissues.
Correct Answer is D
Explanation
A. Muscle weakness and confusion are more commonly associated with metabolic or mixed acid-base disturbances rather than respiratory alkalosis specifically.
B. Decreased deep tendon reflexes and hypotension are not typical signs of respiratory alkalosis, which usually involves changes in breathing patterns.
C. Bradycardia and decreased respiratory rate are more likely associated with respiratory acidosis or other conditions, not with respiratory alkalosis.
D. Rapid, shallow breathing, often due to anxiety or panic attacks, is characteristic of respiratory alkalosis. Patients may also report feelings of panic due to the hyperventilation that leads to this condition.