The unlicensed assistive personnel (UAP) reports that a client's blood pressure cannot be measured in the arms because the client has casts on both arms and is unable to be measured in the legs because the client is in the supine position. Which action should the nurse implement?

A. Demonstrating how to palpate the popliteal pulse is not a suitable alternative for measuring blood pressure when the client cannot be measured in the arms or legs. Palpating peripheral pulses does not provide accurate blood pressure measurements. B. Advising the UAP to document the last blood pressure obtained is insufficient because it does not address the need for current blood pressure monitoring. Documentation of past measurements does not provide real-time information about the client's hemodynamic status. C. Estimating the blood pressure by assessing the pulse volume of the client's radial pulses is a reasonable alternative when traditional blood pressure measurement sites are inaccessible. Although not as accurate as traditional methods, assessing the strength of peripheral pulses can provide valuable information about perfusion and blood pressure status. D. Documenting why the blood pressure cannot be accurately measured is important for record- keeping but does not address the need for ongoing blood pressure monitoring or provide an alternative method for assessment.