A 5-year-old child has a cardiac catheterization via the femoral artery. Which assessment would be most important to complete after the procedure?

The correct answer is C: Checking pedal pulses frequently. This is important post-cardiac catheterization via the femoral artery to assess for adequate circulation to the lower extremities. Absence or changes in pedal pulses could indicate complications such as arterial occlusion or thrombosis. A is incorrect as it is not directly related to the child's physiological well-being. B is incorrect as informing the child about the completion of the procedure is not a priority over assessing their physical status. D is incorrect as it does not address the immediate physical assessment needed after the procedure.