A nurse is providing teaching to a client who is to undergo a cardiac catheterization. Which of the following findings is expected during the procedure?

A. Headache: Headache is not an expected finding during cardiac catheterization. If it occurs, it may indicate an unrelated issue such as anxiety, dehydration, or reaction to contrast dye, but it is not typical of the procedure itself. B. Numbness and tingling of the extremities: Numbness and tingling are not expected during cardiac catheterization. These symptoms could suggest a complication such as nerve compression, impaired circulation, or allergic reaction, requiring immediate evaluation. C. Increased salivation: Increased salivation is not associated with cardiac catheterization. This finding may be linked to oral stimulation or nausea, but it is not a normal response to the procedure. D. Sensation of skin warmth: Clients often report a sensation of warmth or flushing during the injection of contrast dye used in cardiac catheterization. This response is expected and temporary, resulting from vasodilation and the chemical properties of the contrast medium.