NURS 6231 Week 6 Workflow Analysis Example

Three Schedules and a Silent Handoff: A Workflow Analysis of Mealtime Insulin on a Medical Floor

Student Name

College of Nursing, Walden University

NURS 6231: Healthcare Systems and Quality Outcomes

Instructor Name

Month Day, Year

Three Schedules and a Silent Handoff: A Workflow Analysis of Mealtime Insulin on a Medical Floor

Mealtime insulin depends on three things arriving together at the bedside: a current glucose value, a meal the patient is about to eat, and the dose. On a made-up 32-bed medical floor, each of those is produced by a different department on its own schedule. Patient care technicians check glucose on a round. Food and nutrition services deliver trays by cart on a timetable set for the whole building. Nurses give insulin when they reach the patient. This analysis traces the lunchtime sequence from glucose check to dose, times each step from composite observations, separates work time from waiting time, and locates the delay. Most of the elapsed time is waiting, and the largest single wait sits between the tray reaching the bedside and the nurse learning that it is there. The analysis stops at that location and does not yet propose a redesign.

Why Timing Matters

Current inpatient guidance calls for glucose monitoring before meals in patients who are eating, with prandial and correction insulin given in relation to the meal (American Diabetes Association Professional Practice Committee for Diabetes [ADA], 2026). Rapid-acting insulin works best when its action matches the rise in glucose from food. In a study of 840 insulin-meal encounters among hospitalized patients with type 2 diabetes, coordinated administration was associated with smaller glucose swings, although only a small share of encounters were coordinated and the differences in severe hyperglycemia between timing groups were modest (Lim et al., 2020). The finding that most encounters were mismatched is itself the point: poor alignment is the common case.

The Pathway in Lanes

Table 1 lays the lunch sequence out as a swimlane, one column per department, with typical times drawn from observation of 40 lunchtime doses on the composite floor. The times are medians, and the spread around them is wide.

Table 1

Lunchtime Insulin Pathway by Lane, Composite Floor

Work Time and Waiting Time

Lean process analysis separates the time in which something is being done for the patient from the time in which the patient is waiting for the next step (Womack & Jones, 2003). On this pathway, the hands-on work totals about 10 minutes: two for the glucose check, one for placing the tray and seven for the nurse to review the value, prepare the dose and give it. The elapsed time from check to dose is about 105 minutes. More than 90 minutes are waiting.

No one on the pathway is slow. The technician checks twelve patients in about 30 minutes, which is reasonable. The dietary aide places trays quickly and moves on, as the building's timetable requires. The nurse gives the dose within ten minutes of learning the tray has arrived. The waiting sits between tasks, not within them.

Two waits account for almost all of it. The first is the hour between the glucose check and the tray. It exists because the technician's round is scheduled by the unit and the tray by the kitchen, and nobody has aligned them. Its effect is that the correction dose is calculated on a value an hour old. The second is the half hour between tray arrival and the nurse knowing of it. At that handoff, nothing passes between departments. The tray arrives, and no signal reaches the nurse. The patient either waits to eat or, more often, begins eating before the insulin is given.

How the Delay Reaches the Patient

The mistiming shows up on both sides of the meal. When insulin is given half an hour or more after the patient starts eating, glucose rises before the insulin acts, and the dose's action then extends into the afternoon, when the meal has been absorbed. On the composite floor, the pattern appears as high readings in the hour after lunch and a cluster of low readings before dinner. The opposite failure also occurs. In 5 of the 40 observed doses, the nurse gave insulin at the time of the glucose check to avoid forgetting it, and the tray arrived more than an hour later; two of those patients had readings below 70 mg/dL before eating. Both failures come from the same cause, since the dose is timed by the nurse's availability rather than by the meal.

Prior work has shown that this problem belongs to the system rather than to nursing. A hospital project using Lean Six Sigma found that insulin timing improved once food delivery was standardized and on-time tray delivery was tracked by scorecard, and once procedures were kept away from mealtimes (Yamamoto et al., 2010). The improvement came from changing other departments' schedules, which supports locating the delay in the handoffs between lanes.

Where a Redesign Would Act

The analysis points to one handoff: tray delivery to nurse awareness. That handoff holds the largest wait that is fully within the hospital's control, and it drives both the late doses and the early ones. The check-to-tray gap is the second target, since a value taken an hour before the meal makes the correction dose less accurate. The next stage of this work should test ways to create a signal at the moment of tray delivery and to move the glucose check closer to it. Choosing among those options belongs to that stage, where they can be designed with the dietary and technician teams and supported by evidence rather than proposed here.

Limitations

The times come from 40 lunchtime doses on one composite floor and may differ at breakfast and dinner, when staffing and tray schedules change. Median times hide the spread, and some doses were well aligned by chance. Glucose readings after meals reflect illness, steroids and intake as well as timing, so the link between the pathway and the readings is a mechanism supported by the pattern, not a measured effect.

References

American Diabetes Association Professional Practice Committee for Diabetes. (2026). 16. Diabetes care in the hospital: Standards of Care in Diabetes 2026. Diabetes Care, 49(Suppl. 1), S339-S355. https://doi.org/10.2337/dc26-S016

Lim, S. F., Jong, M., Chew, D. E. K., & Lee, J. Y.-C. (2020). Impact of timing between insulin administration and meal consumption on glycemic fluctuation and outcomes in hospitalized patients with type 2 diabetes. Journal of Pharmacy Practice, 33(4), 449-456. https://doi.org/10.1177/0897190018818908

Womack, J. P., & Jones, D. T. (2003). Lean thinking: Banish waste and create wealth in your corporation (Rev. ed.). Free Press.

Yamamoto, J. J., Malatestinic, B., Lehman, A., & Juneja, R. (2010). Facilitating process changes in meal delivery and radiological testing to improve inpatient insulin timing using Six Sigma method. Quality Management in Health Care, 19(3), 189-200. https://doi.org/10.1097/QMH.0b013e3181eb137f