A nurse is caring for a client who the provider suspects might have pernicious anemia. The nurse should expect the provider to prescribe which of the following diagnostic tests?
Schilling test
Haptoglobin
Sweat test
Antinuclear antibodies
The Correct Answer is A
A. Schilling test: This is the correct answer. The Schilling test is used to diagnose pernicious anemia, which is caused by vitamin B12 deficiency. The test measures the absorption of vitamin B12 in the gastrointestinal tract.
B. Haptoglobin: Haptoglobin is a test used to assess hemolysis and is not specific for pernicious anemia.
C. Sweat test: The sweat test is used to diagnose cystic fibrosis and is not relevant to the diagnosis of pernicious anemia.
D. Antinuclear antibodies: Antinuclear antibodies are tested to diagnose autoimmune disorders, such as systemic lupus erythematosus (SLE), and are not specific to pernicious anemia.
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Related Questions
Correct Answer is A
Explanation
A. Schilling test: This is the correct answer. The Schilling test is used to diagnose pernicious anemia, which is caused by vitamin B12 deficiency. The test measures the absorption of vitamin B12 in the gastrointestinal tract.
B. Haptoglobin: Haptoglobin is a test used to assess hemolysis and is not specific for pernicious anemia.
C. Sweat test: The sweat test is used to diagnose cystic fibrosis and is not relevant to the diagnosis of pernicious anemia.
D. Antinuclear antibodies: Antinuclear antibodies are tested to diagnose autoimmune disorders, such as systemic lupus erythematosus (SLE), and are not specific to pernicious anemia.
Correct Answer is C
Explanation
pH 7.22: Indicates acidosis (normal range: 7.35-7.45).
PaCO2 68 mm Hg: Elevated partial pressure of carbon dioxide, suggesting respiratory acidosis (normal range: 35-45 mm Hg).
Base excess -2: Indicates a mild metabolic acidosis.
PaO2 78 mm Hg: Within the normal range (80-100 mm Hg), indicating adequate oxygenation.
Saturation 80%: Below the normal range (95-100%), suggesting some degree of hypoxemia.
Bicarbonate 26 mEq/L: Elevated bicarbonate levels, suggesting metabolic compensation for the respiratory acidosis.
Therefore, the client is experiencing respiratory acidosis with partial metabolic compensation (mild metabolic acidosis).
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