A nurse is caring for a school-age child who is 2 hr postoperative following a cardiac catheterization. The nurse observes blood on the child's dressing. Which of the following actions should the nurse take?

A. Applying intermittent pressure may not effectively stop bleeding from a cardiac catheterization site, as continuous pressure is typically more effective in controlling post-procedural bleeding. B. Applying continuous pressure 2.5 cm above the percutaneous site is the appropriate action to stop bleeding from the catheterization site. C. Applying pressure below the site may not effectively control bleeding and could compromise the site. D. Continuous pressure should be applied above the percutaneous site, not below, to control bleeding.