An infant born 2 days ago has not passed a meconium stool and begins to vomit bilious secretions. Which action should the nurse take first?

B. Check pedal pulses every 4 hours: This order should be questioned because after a ventricular septal defect closure, it is essential to assess and monitor peripheral pulses frequently, especially in the immediate post-catheterization period. Checking pedal pulses every 4 hours may not provide adequate monitoring and could potentially lead to delayed detection of complications.

C. Give lactated Ringers intravenously at 66 ml/hr while NPO: This order should be questioned because it specifies a continuous intravenous infusion of lactated Ringer's solution, but the patient is listed as "Nothing by mouth" (E). In cases where a patient is NPO, it's important to clarify the rationale for the intravenous fluid rate and consider whether it's appropriate, especially after a cardiac catheterization procedure.

The other orders are appropriate or necessary for the post-catheterization care of a child with a closed ventricular septal defect:

A. Point of care blood glucose: Monitoring blood glucose levels is relevant in post-catheterization care.

D. Vital signs every 4 hours: Monitoring vital signs is standard post-catheterization care.

F. Admit to the pediatric floor for observation: This order is appropriate for post-catheterization observation.

G. Check dressing every 15 minutes for 1 hour and then every hour: Frequent dressing checks are important for assessing and preventing bleeding or other complications at the catheterization site.

H. Place the child on a continuous cardiopulmonary monitor: Continuous monitoring is important for early detection of any cardiopulmonary issues in the post-catheterization period.

In summary, monitoring peripheral pulses and the appropriateness of intravenous fluids in relation to NPO status should be questioned in this context.

For this client with a history of Wilms tumor, a radical nephrectomy, chronic kidney disease, and ongoing follow-up by oncology and nephrology services, the nurse should prioritize the following three care needs:

B. Identifying cardiac arrhythmias: Given the history of chronic kidney disease and potential electrolyte imbalances, cardiac arrhythmias are a significant concern that should be assessed and monitored for.

F. Monitoring fluid status: Fluid balance is crucial in clients with chronic kidney disease, and monitoring for fluid overload or dehydration is essential. This is especially important because of the potential need for fluid restrictions.

H. Assessing for worsening respiratory status: Assessing respiratory status is important, as clients with chronic kidney disease may be at risk for respiratory complications, including fluid overload, pulmonary edema, or other issues that can impact their respiratory status.

The other options are not the top priorities based on the client's history and current condition:

A. Collaborating with a dietitian to prepare a low-protein diet is important but may not be the immediate priority.

C. Performing diagnostic testing to determine the cause of a fever is necessary, but it does not take precedence over the immediate concerns of cardiac arrhythmias, fluid status, and respiratory status.

D. Educating the client and family on the importance of fluid restrictions is important, but it is related to monitoring fluid status and may be part of ongoing care.

E. Administering antipyretic medication as needed is relevant for fever management but not a top priority until the cause of the fever is determined.

G. Reassessing vital signs is part of ongoing care but may not be the immediate priority over identifying cardiac arrhythmias and assessing for worsening respiratory status.

I. Investigating acid/base complications is important but may not be the immediate priority when cardiac, fluid, and respiratory status are concerns.