Final answer:
The nurse should position the client supine with the head elevated 45 degrees to accurately assess jugular vein distension, which is indicative of central venous pressure. so, option A is the correct answer.
Step-by-step explanation:
To obtain an accurate reading of jugular vein distension, the nurse would position the client supine with the head elevated 45 degrees. This position allows the best visualization of the jugular veins and helps in assessing the central venous pressure, which can be an indicator of the heart's efficiency and the body's volume status. Having the head elevated to 90 degrees may collapse the vein and make it difficult to observe, while sitting upright or being prone are not suitable positions for this assessment.
To obtain an accurate reading of jugular vein distension, the client should be placed in a supine position with the head elevated 90 degrees.
To obtain an accurate reading of jugular vein distension, the nurse would place the client in position B) Supine with the head elevated 90 degrees.