Wrong Breast Milk Given to a 27-Week Infant at 03:00
At 03:00 in a 60-bed level III unit, a nurse discovers that 40 mL of thawed expressed breast milk labeled for Bed 12 (a 34-week feeder-grower) was given by gravity via an orogastric tube to the infant in Bed 21, a 27-week-2-day, 890-g infant with a central line who is on 2 L nasal cannula. Bed 12's mother is CMV IgG positive and has been providing fresh breast milk; Bed 21's mother is CMV negative, and unit policy is own-mother milk only. The error is discovered 20 minutes after the feed finished. The charge nurse wants to watch and see and not wake the parents. The unit has a just-culture policy and a barcode scanning system that was bypassed because the only scanner was charging.
1. What are the clinical risks to the recipient, and what do you do tonight?
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First, the volume itself is the most immediate problem: 40 mL in an 890-g infant is about 45 mL/kg in a single feed, roughly double a typical feeding volume. Check the residual, hold the next feeding for 4–6 hours, examine the abdomen for distension or tenderness, and monitor glucose, heart rate, perfusion, and respiratory status every 2–4 hours overnight. Aspiration is possible if the feed was given quickly, so watch for desaturation and new oxygen requirement.
Second, infection risk from bacterial contamination of another mother's thawed milk - monitor temperature and clinical status, and have a low threshold for a sepsis evaluation if signs appear, though prophylaxis is not indicated.
Third, cytomegalovirus: freeze-thawing reduces but does not eliminate CMV in breast milk, and a 27-week, CMV-negative infant is susceptible to postnatal CMV with a sepsis-like syndrome, neutropenia, hepatitis, or pneumonitis. No antiviral prophylaxis is warranted. Counsel and monitor clinically over the next 4–6 weeks, and send urine or saliva CMV polymerase chain reaction if symptoms develop. Confirm what Bed 12 actually received and whether any other feed was involved. Document everything contemporaneously.
2. How and when do you disclose this to the two families, and what does a just culture require here?
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Disclose promptly - within hours, not after an investigation concludes - in person, by the attending physician plus the nurse manager or risk manager, with a trained interpreter if needed. Tell both families what happened, that an error occurred, what the possible consequences are, what monitoring is planned, and that you are sorry. Do not speculate about blame, do not guarantee that nothing will happen, and do not omit the CMV discussion from Bed 21's family because it is uncomfortable.
Bed 12's family needs to know their infant may have missed or received a partial feed and that milk supply records will be reconciled. Bed 21's family needs the volume and CMV information and a clear plan for follow-up testing if symptoms occur.
A just culture means separating accountability from blame: the nurse who bypassed the scanner should be supported through the event report and peer review, while the system failures - a single charging scanner, a 03:00 workload, labeling that permits look-alike beds - are addressed as system problems. Document the conversation in the chart, complete the safety event report the same night, and offer the family a single point of contact.
3. What system changes would you make, and how would you know within three months whether they worked?
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Structural fixes: enough scanners that one is always charged and docked, with a hard stop in the electronic record that prevents documentation of a feed without a scan; bedside two-person verification for milk identity at every feed; unit-dose or single-serve labeling with large bed-number and photo identifiers; separate storage bins for each bed; and a review of the 03:00 staffing and task-loading pattern that invited the shortcut.
Process fixes: brief just-in-time training, a policy that any workaround of scanning must be escalated rather than improvised, and a blameless review in which near misses are reported without penalty. Consider simulating the workflow at night to find other failure points.
Measures: percentage of feeds with a documented scan (target above 95%); milk misadministration events per 1,000 feeds; near-miss reports per month (a rise here can be a good sign); days between events; and staff responses on a short safety-climate survey. Use small plan-do-study-act cycles and review run charts at monthly quality meetings rather than relying on a single post-intervention snapshot. Report results to the unit safety committee and to the families if they wish to be updated.