5.6 Hyperbaric Oxygen and Specialty Referral Coordination

Advanced referral is part of treatment judgment

The WCC certification is granted by the National Alliance of Wound Care and Ostomy (NAWCO/NAWCCB) to licensed practitioners providing hands-on or consultative skin and wound management; scope is governed by state regulatory boards and employer guidelines. That is why referral is central: the credential demonstrates wound-care knowledge but does not permit practice beyond license, expertise, or facility policy.

Hyperbaric oxygen therapy (HBOT) delivers 100% oxygen at 2 to 3 atmospheres absolute, raising dissolved tissue oxygen to promote angiogenesis and bacterial killing. It is adjunctive and reserved for recognized indications, not a rescue for every nonhealing wound. Commonly accepted, often Medicare-reimbursed indications include Wagner grade 3 or higher diabetic foot ulcers that have failed 30 days of standard care, late radiation tissue injury (osteoradionecrosis, soft-tissue), chronic refractory osteomyelitis, compromised flaps/grafts, crush injury, and necrotizing infections.

A simple stalled stage 2 pressure injury or an uninfected, well-perfused venous ulcer is not an HBOT indication.

Key contraindication: untreated pneumothorax is the only absolute contraindication; relative cautions include certain chemotherapy agents (bleomycin, doxorubicin, cisplatin), recent ear/sinus surgery, severe COPD with air trapping, and claustrophobia. Confirm perfusion, infection control, and glycemic stability before HBOT is meaningful.

Referral targets and the WCC role

Applied WCC scenario

A patient with diabetes has a deep Wagner-uncertain foot ulcer, probe-to-bone positive, and poor perfusion. The best answer is not to schedule routine HBOT first. Identify urgent referral needs, protect the wound, address offloading, notify the provider, and coordinate vascular, podiatry, infectious disease, or surgical evaluation. HBOT only fits after perfusion, infection, and glycemic prerequisites are addressed and a qualifying indication is confirmed.

Communicate precisely

A strong referral states wound location, duration, measurements, tissue type, exudate, odor, pain, periwound condition, infection signs, vascular findings (ABI/pulses), glucose or nutrition concerns, treatments tried, the response, and the reason for referral. Avoid vague requests like "wound looks bad." Clear handoffs support the Legal (6%) and Re-Evaluation (16%) domains.

Exam traps

• Choosing another dressing change when the stem gives systemic infection, ischemic changes, rapidly worsening tissue, suspected abscess, or exposed tendon or bone, which all need urgent escalation.
• Treating HBOT as a universal therapy or believing certification overrides state scope.
• Assuming palliative care means no wound care; in comfort-focused goals, the targets shift to pain, odor, exudate, bleeding control, dignity, and caregiver burden. Referral is not failure; it is Treatment-domain competence when the problem requires another discipline.

Reading the urgency of a referral

Not all referrals are equal, and the exam separates urgent escalation from routine coordination. Emergent or same-day escalation belongs to limb- or life-threatening signs: spreading cellulitis with systemic features, suspected necrotizing infection (pain out of proportion, crepitus, dusky skin, bullae), uncontrolled bleeding, acute ischemia with rest pain and cold mottled tissue, or a rapidly enlarging deep wound. Urgent but not emergent referrals include a probe-to-bone diabetic foot ulcer, an undermined wound with possible abscess, and an exposed tendon or bone.

Routine coordination covers nutrition optimization, footwear and offloading fitting, lymphedema therapy, and elective vascular workup of a stable claudicant. When a stem describes systemic infection or ischemic threat, the correct answer escalates immediately rather than scheduling "one more dressing change."

Coordinating care across the team

Wound healing is interdisciplinary, and the WCC practitioner is frequently the coordinator who connects the patient to the right discipline at the right time. That means knowing who owns each barrier: vascular and podiatry for perfusion and foot mechanics, infectious disease and the primary provider for antibiotic decisions and osteomyelitis, the dietitian for protein-calorie support, physical and occupational therapy for mobility and seating, social work and case management for adherence, transportation, and payer barriers, and the hyperbaric program for qualifying indications.

Closing the loop matters: a referral that is sent but never followed up is an incomplete plan, so document the referral, the reason, and the response, and reassess the wound while specialty input is pending.

Palliative wound goals

When goals are comfort-focused, the wound may be nonhealable, and forcing aggressive debridement or HBOT is inappropriate. The plan shifts to symptom control: managing pain at dressing changes, controlling odor (often with charcoal dressings or topical metronidazole per order), absorbing exudate to protect skin and dignity, preventing and controlling bleeding in friable tumors, and supporting the caregiver. This is still active wound care; "comfort goals" never means "no care," and recognizing that distinction is a recurring high-level WCC item.

Throughout, scope, documentation, and clear communication keep the plan defensible across the Legal and Re-Evaluation domains.