When assessing a client's lower extremities, which finding requires immediate intervention by the nurse?

Rationale: A. Multiple varicosities on both thighs: Varicose veins indicate chronic venous insufficiency and poor venous return but are generally not emergencies. They require monitoring and supportive management but do not typically demand immediate intervention unless complications arise. B. Stage 2 pressure injury over the left ankle: A stage 2 pressure injury is a serious concern that needs proper wound care and prevention strategies. However, it is not an immediate life-threatening condition requiring urgent action compared to findings that suggest a thrombotic event. C. Right calf swelling and tenderness: Swelling and tenderness in one calf are hallmark signs of deep vein thrombosis (DVT), a condition that can lead to life-threatening pulmonary embolism if the clot dislodges. Immediate intervention is critical to prevent serious complications and initiate anticoagulation therapy if confirmed. D. Lack of hair growth on both lower legs: Absent hair growth suggests chronic arterial insufficiency or poor circulation, which warrants evaluation but is a chronic finding rather than an acute issue that demands emergency intervention.