A nurse is caring for a client who has an arterial line Inserted in the radial artery. Which of the following actions should the nurse take?

A. Align the transducer to the level of the client's radial artery: The transducer should be aligned to the level of the phlebostatic axis at the fourth intercostal space, mid-axillary line, not the radial artery. B. Maintain the pressure bag at 300 mm Hg of pressure: The pressure bag should be maintained at 300 mm Hg to ensure that the pressure within the system is higher than the client’s arterial pressure. This helps to prevent blood from flowing back into the tubing. C. Infuse 0.9% sodium chloride at 150 mL/hr: Infusion through an arterial line is not recommended for fluids like 0.9% sodium chloride, as arterial lines are for pressure monitoring and blood sampling. Fluids should be infused through a separate IV line. D. Have the client bear down when checking their blood pressure: The client should not bear down when checking blood pressure with an arterial line. Bearing down could artificially raise intra-abdominal pressure and affect the reading.