An adolescent girl who is receiving chemotherapy for leukemia is admitted for pneumonia. The adolescent’s platelet count is 50,000 μL. Which of the following would be inappropriate to include in the plan of care（）

A. A sign over the bed that reads "NO NEEDLE STICKS AND NOTHING PER RECTUM".

B. Two peripheral IV intermittent infusion devices, one for blood draws and one for infusions.

C. Administration of oxygen at a rate of 4 L/min using a nonhumidified nasal cannula.

D. Use of a tympanic membrane sensor to measure the client’s temperature at the bedside.

治疗洋地黄中毒引起的室性心律失常的首选药物是（）。

A.奎尼丁

B.普萘洛尔

C.胺碘酮

D.苯妥英钠

E.维拉帕米