The nurse observes that the client's total parenteral nutrition (TPN) solution is infusing too slowly. The nurse calculates that the client has received 300 mL less than was ordered for the day. What should the nurse do next

A．Assess the infusion system, note the client's condition, and notify the physician.

B．Discontinue the solution and administer dextrose in 5% water until the infusion problem is resolved.

C．Increase the flow rate to infuse an additional 300 mL over the next hour.

D．Maintain the flow rate at the current rate and document any discrepancy in the chart.

下列电平符号中，表示“相对功率电平”的是（）。

A.dBm

B.dBr

C.dBV

D.dBm0