Assessment Questions for the WCC Exam — Practice Free

Glucocorticoids like Prednisone inhibit the early inflammatory phase of wound healing by suppressing macrophage infiltration and reducing collagen synthesis. In the history, this explains why the wound may lack typical signs of inflammation (redness, warmth) even if stalled. Exam Strategy: NAWCO emphasizes that steroids don't just slow healing; they specifically impair the transition from inflammation to proliferation. If a patient is on >10mg/day, Vitamin A (topical or systemic) is often discussed in clinical practice to reverse some inhibitory effects, though History/Assessment remains the focus here. Distractor: Do not confuse steroid-induced skin thinning (atrophy) with simple aging.

Epibole indicates that the upper epidermal cells have rolled down over the lower edge, preventing migration across the wound bed. When measuring, the clinician must measure from the visible edge to edge, but document the presence of epibole as it signifies a stalled (chronic) wound state. Clinical Reasoning: If the wound edges are not attached to the base, the wound is closed but not healed. NAWCO expects you to recognize that epibole often requires surgical or chemical debridement (e.g., silver nitrate) to restart the healing process. Measurements may appear stable, but the lack of epithelialization despite a clean bed is a red flag.

Centripetal Migration (or contraction-migration). Keratinocytes move from the wound margins across the wound bed. To support this, a moist wound environment is critical. If the wound bed is too dry, cells must burrow deeper to find moisture (scab formation), slowing healing. If too wet, the edges may macerate. WCC Pearls: Epithelialization is the final stage of the Proliferative Phase and requires a viable granulation base.

Non-blanchable erythema indicates structural damage to the microvasculature and is a hallmark of a Stage 1 Pressure Injury. If the redness blanches (turns white then returns to red), it is reactive hyperemia, which is a normal physiological response to temporary ischemia. NAWCO focuses on this distinction to correctly stage pressure injuries. Clinical Pearl: Non-blanchable erythema in the periwound of a vascular ulcer may also indicate localized vasculitis or severe infection.

This is a Positive Stemmer's Sign. **Interpretation:** It indicates the presence of Lymphedema. When CVI progresses to the point of causing skin changes like LDS, the lymphatic system often becomes overwhelmed and damaged by the chronic high protein fluid load. This is termed "Phlebolymphedema." **Clinical Impact:** The presence of a positive Stemmer's sign means the patient requires a more intensive lymphedema management approach (Complete Decongestive Therapy - CDT) rather than just standard venous compression. **Exam Tip:** NAWCO focuses on the transition from CVI to lymphedema. If the question mentions toe swelling or "square toes" along with LDS, look for Phlebolymphedema.