Quick answerRe-measure the edematous stoma, expect firmer stool, and report persistently raw peristomal skin.
Why this is correctThe scenario details drive the answers: postoperative day 5 and an edematous 38 mm stoma mean the size will fall over the coming weeks, so the client's plan to lock in precut 38 mm wafers must be corrected. A sigmoid colostomy is in the distal colon, where water is reabsorbed, so pasty output now will usually become formed. Raw, weeping skin under the wafer signals leakage or a poor fit and needs expert assessment.
Easy analogy or mental pictureA new stoma is like a sprained ankle: swollen at first and shrinking back over weeks, so the shoe (wafer) size has to change with it.
Memory hookNew stoma shrinks: measure every change for 6 to 8 weeks.
NCLEX decision ruleTeaching for a new ostomy must anticipate expected changes over time (stoma size, output consistency) and separate expected findings from those needing follow-up.
Why the other choices are wrongOrdering precut wafers at 38 mm is tempting because it uses an accurate current measurement, but the stoma will shrink and the gap will expose skin to stool. Daily full changes sound cleaner, but frequent adhesive removal damages the peristomal skin; routine changes are every 3 to 7 days or when leaking. Slight bleeding on wiping looks alarming, but stoma mucosa is highly vascular and minor bleeding is expected; persistent bleeding or a dusky color would need reporting.
References
1United Ostomy Associations of America (UOAA)Colostomy self-care, stoma measurement, and peristomal skin care
2Wound, Ostomy and Continence Nurses Society (WOCN)Ostomy care standards and specialist follow-up for peristomal skin complications