验钞机是利用荧光物质在 ______线的照射下能够发光的原理制成的；家中的电视遥控器是靠 ______线来实现对电视机的控制的（两空选填“红外”或“紫外”）．

Susan is an adolescent client with pregnancy-induced hypertension (PIH). The physician orders 5% dextrose in Ringer’s solution and magnesium sulfate intravenously for her. Before the magnesium sulfate is administered, which of the following assessments would be the priority()

A. Maternal urinary output.

B. Fetal position.

C. Fetal heart rate variability.

D. Maternal respiratory rate.