5.5 Offloading, Compression, and Lymphedema Decision-Making

Cause control with pressure and edema

The WCC Treatment domain includes support surfaces, adjunctive therapies, product recommendations, and referrals. Offloading and compression sit at the center of cause control. A dressing can manage moisture, but it cannot heal a plantar ulcer that is walked on all day or a venous ulcer with uncontrolled edema.

Offloading means reducing harmful pressure and shear at the wound or at-risk area. It may involve total contact casting, removable cast walkers, custom footwear, felted foam, heel protectors, wheelchair cushions, bed positioning, or device padding according to provider order and facility policy. The exam focus is not which brand is best; it is whether pressure is actually reduced and whether the patient can use the device safely.

Compression means applying external pressure to manage venous hypertension or lymphedema when arterial flow is adequate and no contraindication is present. Options include wraps, stockings, multilayer systems, short-stretch bandaging, pneumatic compression, and lymphedema therapy referral. Compression is powerful, so vascular assessment matters.

Applied WCC scenario guidance: a patient with neuropathy has a plantar metatarsal ulcer and says the wound does not hurt, so walking is fine. The best answer is to explain that neuropathy can hide pressure injury, arrange offloading within the care plan, assess footwear, check for infection and perfusion issues, and document adherence barriers. Pain absence is not proof of low risk.

Compression scenarios often include ischemic clues. Cool foot, rest pain, dependent rubor, black toes, absent pulses, or very low vascular measures should trigger vascular referral or provider notification rather than routine high compression. If the stem says arterial status is adequate and venous edema is the driver, then compression plus elevation, calf pump activity if appropriate, skin protection, and education are likely correct.

Lymphedema questions test long-term thinking. The limb may have swelling, skin thickening, lymphorrhea, recurrent cellulitis history, or difficulty fitting garments. The WCC candidate should consider skin hygiene, moisture control, compression fit, referral to trained lymphedema therapy, and payer or caregiver barriers.

Exam trap: choosing the best dressing for a plantar ulcer while ignoring pressure. Another trap is applying compression because a wound is on the lower leg without checking arterial sufficiency. A third trap is telling a patient with neuropathy to self-adjust an offloading device without follow-up when the device itself can create pressure.

Documentation should link the intervention to the cause. Record ulcer location, pressure source, edema status, vascular findings, device fit, skin checks, patient education, tolerance, and follow-up. The WCC exam favors interventions that are measurable and reevaluated.