Sacral Wound With Slough and a 2 cm Tract: Staging and Documentation Under Uncertainty
Mrs. R is 78, lives with her son, and has advanced dementia. Three weeks ago the home health nurse documented a "Stage 3" pressure injury over the sacrum measuring 4.2 x 3.0 cm. Today you measure the same area at 4.0 x 3.1 cm. The base is about 70% covered by adherent yellow slough; the remainder is pink granulation tissue. Drainage is moderate and serosanguineous. There is a 1 cm rim of blanchable erythema but no induration and no odor. When you probe gently at the 6 o'clock position, a tract extends 2 cm. Mrs. R is incontinent of stool, her BMI is 17.8, and she spends most of the day in a recliner. The previous nurse's notes do not state the measurement method, and no imaging has been done.
1. How would you stage and describe this wound in today's note, and how do you deal with the fact that the previous note called it a Stage 3?
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Staging today: unstageable. Staging requires a visible wound base. With roughly 70% of the base obscured by adherent slough, the true depth cannot be determined, so the correct designation is unstageable pressure injury (NPIAP/NPUAP terminology) - not Stage 2, not Stage 3, and not "improving."
Handling the prior "Stage 3" entry:
- Staging is a classification of the deepest tissue level injured, not a measure of healing. A pressure injury does not "become" a lower stage as it granulates.
- Document the discrepancy factually rather than editing history: "Base obscured by ~70% slough; stage cannot be determined today. Prior note 3 weeks ago documented Stage 3; that staging cannot be confirmed or revised until the base is visible."
- If debridement later reveals a clearly partial-thickness base, that means the original staging was inaccurate - document the corrected stage with the rationale and the date, and notify the supervising clinician.
Describing the 2 cm tract: do not fold it into the stage. Document it as tunneling/undermining at 6 o'clock, depth in cm, and direction. State explicitly whether the probe reached bone or felt gritty or hard; if so, this suggests deep involvement or osteomyelitis and requires medical workup (imaging, bone assessment) before any stage can be assigned.
Measurements: record length (head-to-toe) x width (perpendicular) x depth, the instrument used, and the method, so next week's numbers are comparable. Measure depth and the tract with a moistened cotton-tipped applicator; use a clock face for undermining/tunneling.
Also include: tissue types as percentages, exudate amount/type/odor, periwound skin (blanchable erythema, maceration, induration), wound edges, pain (use a dementia-appropriate tool), incontinence/moisture exposure, support surface, and photographs if policy and consent allow.
2. The following week the slough is thinner, and a nursing assistant tells you, "Good news - it's a Stage 2 now." What is your response, and what else must be assessed and documented so the plan of care stays accurate and defensible?
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Correct the misconception directly but collegially. A thinner slough layer is a sign of cleaning/granulation, not "downstaging." Pressure injury stage reflects the deepest tissue layer ever injured; wounds do not progress backward through stages as they heal. If the base is now fully visible and appears partial-thickness, the appropriate action is to document a corrected staging with rationale and notify the provider - not to silently restage as a sign of improvement. Healing progress is tracked with measurements, tissue percentages, exudate, and periwound status.
Assess and document the drivers, not just the hole:
- Nutrition: BMI 17.8 with likely unintentional weight loss - obtain a weight trend, intake history, and a registered dietitian referral; document the referral and the patient/family response.
- Pressure redistribution: Braden score, surface type, turning schedule actually delivered versus ordered, time spent sitting in the recliner (chair time is a major sacral risk), and head-of-bed elevation.
- Moisture/incontinence: stool frequency, cleansing routine, barrier product use - incontinence-associated dermatitis can masquerade as deterioration and impedes healing.
- The 2 cm tract: measure and re-probe weekly; document whether it is shallower or deeper; escalate to the provider if it probes to bone, if drainage changes, or if there is no improvement in 2 weeks.
- Pain and function: dementia-appropriate pain assessment before, during, and after care.
Continuity and defensibility: state the measurement method and date/time on every note, keep terminology standardized ("pressure injury," not "ulcer/bedsore"), record education given to the son and the aide, and make sure the orders on file match what is actually being done (dressing, surface, turning interval, diet). Inconsistent terminology and unrecorded method changes are the usual reasons a wound record becomes unusable for comparison or review.