The nurse is caring for a patient diagnosed with chronic obstructive pulmonary disease (COPD). Which lab results will the nurse expect to find to support this diagnosis?
pH 7.30, PaCO2 59, HCO3 30
pH 7.50, PaCO2 30, HCO3 24
pH 7.48, PaCO2 42, HCO3 29
pH 7.33, PaCO2 34, HCO3 18
The Correct Answer is A
Choice A reason: The lab results pH 7.30, PaCO2 59, HCO3 30 indicate respiratory acidosis with partial compensation. This is a typical finding in patients with chronic obstructive pulmonary disease (COPD) due to chronic hypoventilation and CO2 retention. The elevated PaCO2 reflects respiratory acidosis, and the elevated HCO3 indicates renal compensation to maintain acid-base balance.
Choice B reason: The lab results pH 7.50, PaCO2 30, HCO3 24 indicate respiratory alkalosis. This is not typical for COPD, where respiratory acidosis is more common.
Choice C reason: The lab results pH 7.48, PaCO2 42, HCO3 29 indicate metabolic alkalosis with partial compensation, which is not consistent with the primary respiratory issues seen in COPD.
Choice D reason: The lab results pH 7.33, PaCO2 34, HCO3 18 indicate metabolic acidosis with partial compensation, which is not typical for COPD. COPD primarily causes respiratory acidosis due to CO2 retention.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Removal of the transplanted kidney is the definitive intervention for hyperacute rejection. Hyperacute rejection occurs within minutes to hours after transplantation due to pre-formed antibodies against the donor organ. This form of rejection is irreversible and requires immediate removal of the transplanted kidney to prevent further complications and damage to the recipient's health.
Choice B reason: An increase in the dose of cyclosporine therapy is not effective in hyperacute rejection. Cyclosporine is an immunosuppressive medication used to prevent rejection, but in cases of hyperacute rejection, the rapid and severe immune response cannot be controlled by increasing the dose. The affected kidney must be removed.
Choice C reason: A new kidney transplant from a living donor is not an immediate intervention for hyperacute rejection. Before considering another transplant, it is essential to identify and address the underlying cause of hyperacute rejection and ensure that the recipient's immune system is adequately managed to prevent recurrence.
Choice D reason: Administration of methylprednisolone sodium succinate is typically used to manage acute rejection episodes but is not effective for hyperacute rejection. The rapid onset and severity of hyperacute rejection necessitate the removal of the transplanted organ rather than relying on immunosuppressive medications.
Correct Answer is B
Explanation
Choice A reason: Scattered petechiae on bilateral lower extremities are a common finding in patients with thrombocytopenia, indicating low platelet count and increased risk of bleeding. While this finding is concerning, it is not as immediate a threat as significant bleeding or bruising.
Choice B reason: Ecchymosis around the intravenous site suggests significant bleeding and bruising, which can be more urgent and requires immediate reporting. A platelet count of 10,000/mm³ is critically low, increasing the risk of spontaneous bleeding and haemorrhage. Immediate intervention is necessary to prevent further complications.
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