单选题 Vasodilation or vasoconstriction produced by an external cause will interfere with an accurate assessment of a client with peripheral vascular disease (PVD). Therefore, the nurse should

A. keep the client warm.
B. maintain room temperature at 78°F (25.6℃).
C. keep the client uncovered.
D. match the room temperature with the client's body temperature.

【正确答案】 A

【答案解析】The nurse should keep the client covered and expose only the portion of the client's body that is being assessed. The nurse should also keep the client warm by maintaining his room temperature between 68° and 74°F (20° and 23.3℃). Extreme temperatures aren't good for clients with PVD. The valves in their arteries and veins are already insufficient and exposing them to vast changes in temperature could influence the client's response. A room temperature of 78°F may be too warm for some clients and too cool for others. Keeping the client uncovered would lead to chilling. Matching the room temperature with the client's body temperature is inappropriate.