Final answer:
The observations that the PN should immediately report to the RN are: incisional pain rated 8/10, swelling and redness in the lower left leg, and 15 mL of bloody drainage from the drain.
Step-by-step explanation:
The observation(s) that the practical nurse (PN) should immediately report to the registered nurse (RN) are:
A. The client complains of incisional pain, rating it an 8 on a scale of 0-10
C. Swelling and redness have developed in the client's lower left leg
D. The LPN emptied 15 mL of bloody drainage from the Jackson-Pratt drain
These observations indicate potential complications that require immediate attention. Incisional pain, especially when rated as an 8 on a scale of 0-10, may indicate inadequate pain management or infection. Swelling and redness in the lower left leg may suggest deep vein thrombosis, which is a serious condition that requires intervention. Lastly, the presence of bloody drainage from the drain may indicate bleeding or an infection, which should be addressed promptly.