The nurse is caring for a client diagnosed with chronic hepatitis who is receiving the medication lactulose. Which of these laboratory results would indicate the medication is achieving the desired therapeutic effect?

Intervention: Validate that informed consent has been given by the client.

Reason: Before any invasive procedure, it is crucial to ensure that the client has given informed consent. This means the client understands the procedure, its risks, benefits, and any potential complications. Validating informed consent is a legal and ethical requirement that ensures the client is making an informed decision about their care12.

Assessment: The trachea is shifted away from the midline of the neck.

Reason: A tracheal shift is a critical finding that warrants immediate action. It can indicate a tension pneumothorax, which is a life-threatening condition where air accumulates in the pleural space and causes the lung to collapse. This shift can compromise respiratory function and requires urgent intervention34.

Choice B: Pulse oximetry is 93% on 2 L of oxygen.

Reason: While a pulse oximetry reading of 93% on 2 liters of oxygen is slightly below the normal range (95-100%), it is not immediately life-threatening. However, it does indicate that the client may need further evaluation and monitoring to ensure adequate oxygenation.

Choice C: The client rates pain as 8/10 at the site of the procedure.

Reason: Pain management is important, but an 8/10 pain rating at the procedure site, while significant, does not require immediate action compared to a tracheal shift. Pain can be managed with appropriate analgesics as ordered by the physician.

Choice D: Request an order for pain medication.

Reason: Requesting an order for pain medication is a necessary intervention for managing the client’s pain, but it is not as urgent as addressing a tracheal shift. Pain management should be part of the overall care plan.

Choice E: Measure oxygen saturation before and after a 12-minute walk.

Reason: Measuring oxygen saturation before and after a 12-minute walk is a useful assessment to evaluate the client’s respiratory function and endurance. However, it is not an immediate priority compared to ensuring informed consent and addressing critical findings.

Choice F: Explain the procedure in detail to the client and the family.

Reason: Explaining the procedure in detail to the client and their family is essential for informed consent and reducing anxiety. It ensures that the client understands what to expect and can make an informed decision about their care.

Choice G: Assist the client to the bathroom.

Reason: Assisting the client to the bathroom is a routine nursing intervention that ensures the client’s comfort and dignity. However, it is not a priority compared to addressing critical findings and ensuring informed consent.

Choice H: Discuss all possible complications with the client.

Reason: Discussing all possible complications with the client is part of the informed consent process. It ensures that the client is aware of potential risks and can make an informed decision about their care.

Choice I: A small amount of drainage from the site is noted.

Reason: Noting a small amount of drainage from the site is an important assessment, but it is not as urgent as addressing a tracheal shift. The drainage should be monitored and documented, and any significant changes should be reported to the physician.

Choice A Reason:

Metabolic alkalosis is characterized by an elevated pH (greater than 7.45) and an increased bicarbonate (HCO3) level. In this case, the pH is 7.30, indicating acidosis, and the HCO3 level is 18 mEq/L, which is below the normal range (22-26 mEq/L). Therefore, metabolic alkalosis is not the correct diagnosis.

Choice B Reason:

Respiratory alkalosis is indicated by a high pH (greater than 7.45) and a low PaCO2 (less than 35 mm Hg). Although the PaCO2 is low at 28 mm Hg, the pH is 7.30, indicating acidosis rather than alkalosis. Therefore, respiratory alkalosis is not the correct diagnosis.

Choice C Reason:

Respiratory acidosis is characterized by a low pH (less than 7.35) and an elevated PaCO2 (greater than 45 mm Hg). In this case, the pH is low, indicating acidosis, but the PaCO2 is also low at 28 mm Hg, which does not fit the criteria for respiratory acidosis. Therefore, respiratory acidosis is not the correct diagnosis.

Choice D Reason:

Metabolic acidosis is indicated by a low pH (less than 7.35) and a low bicarbonate (HCO3) level (less than 22 mEq/L). In this case, the pH is 7.30, indicating acidosis, and the HCO3 level is 18 mEq/L, which is below the normal range. The low PaCO2 of 28 mm Hg suggests a compensatory respiratory response to the metabolic acidosis. Therefore, metabolic acidosis is the correct diagnosis.