Riverside Community Hospital: Building a One-Year RN Staffing Plan
Riverside Community Hospital, a 180-bed nonprofit, employs 240 registered nurses. Separations have averaged 18% of the RN workforce annually for the past two years. A retirement census shows 52 nurses reaching age 65 within three years, though most of those names also appear in the turnover history. Administration has approved a 20-bed medical-surgical expansion opening in ten months; the hospital's staffing model requires 1.2 RN FTEs per occupied bed, and the new unit is projected to run at 85% occupancy. The local labor market supplies roughly 30 experienced RNs per year to Riverside. New graduate nurses are available in larger numbers but need a 12-week residency before independent practice, at $9,000 per resident plus salary. Agency travel nurses cost $95 per hour against $38 per hour fully loaded for a staff nurse, and can start immediately. First-year turnover among newly hired graduates has historically run about 25%. The CNO must present a one-year staffing plan to the board in three weeks.
1. Quantify Riverside's one-year RN hiring requirement and the resulting gap. Show your arithmetic and flag the assumptions the board should challenge.
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Replacement demand. 18% × 240 = 43 separations to replace in year one. Do not add the 52 retirement-eligible nurses on top of this. Most of them are already inside the 18% rate; adding them would double-count and inflate the plan by roughly 17 positions a year. The correct treatment is to test the assumption: if retirement accelerates and separations run at 22% instead of 18%, replacement demand becomes 53, not 43.
Growth demand. 20 beds × 85% occupancy = 17 occupied beds × 1.2 FTE = 20.4, so 20 FTE for the new unit. If the unit ramps slowly and averages 60% occupancy in year one, the requirement drops to about 14.4.
Total requirement: 43 + 20 = 63 RNs.
External supply: about 30 experienced RNs.
Gap: 63 − 30 = 33 positions that must come from new graduates, agency, or overtime.
Assumptions worth challenging: (1) the 12-week residency means graduates hired in month 10 are not productive until the unit has already opened, so timing matters as much as headcount; (2) 25% first-year graduate turnover means hiring exactly 33 graduates leaves you short again within twelve months; (3) the 18% average masks whether voluntary separations cluster in the first two years of service, which changes the mix; (4) the staffing ratio and 85% occupancy projection are planning inputs, not facts.
2. Recommend a hiring mix for the 33-position gap and defend it against the apparently cheaper option of filling the gap with agency nurses.
Read the worked answer
Start with the cost comparison, because the agency option looks cheap only if you ignore the hourly premium.
- Agency: $95 − $38 = $57/hour premium. At 2,080 hours that is $118,560 per FTE per year, or roughly $3.9 million for 33 positions.
- New graduate: $9,000 residency plus about 12 weeks of paid non-productive time ($38 × 40 × 12 ≈ $18,240) plus preceptor time, call it $30,000–$35,000 in one-time transition cost per nurse, after which the nurse costs the normal staff rate.
So the recommendation is a layered mix, not a single answer: hire all 30 available experienced nurses, over-hire graduates (about 40 to net 33 after 25% first-year attrition), and bridge with a small, explicitly temporary agency complement of roughly 5–8 FTE for the first two quarters to cover the residency lag and the opening ramp. Build a taper clause into the agency contract so the premium spend declines each quarter.
The reasoning for treating agency as a bridge rather than a base: agency nurses carry no residency cost but also no retention, no unit culture, and often no competency with your protocols; a unit staffed heavily with travelers plus brand-new graduates is a quality and supervision risk. The strategic lever is the 18% turnover rate itself. If retention programs (schedule self-scheduling, preceptor stipends, a two-year commitment bonus, exit-interview follow-up) pull turnover to 12%, replacement demand falls from 43 to 29 and roughly 14 of the 33 gap positions disappear without a single extra hire.
3. What forecasting approach and set of metrics should Riverside institutionalize so it is not rebuilding this analysis from scratch every year?
Read the worked answer
A repeatable workforce plan has four moving parts, reviewed quarterly rather than annually.
- Demand forecast. Use a workload-driven method, not a headcount trend: occupied bed days × the staffing ratio, plus projected volume changes and new programs. Ratio-trend and managerial-estimate methods are acceptable cross-checks; pure historical headcount is not, because it bakes in yesterday's vacancies.
- Supply forecast. Build a transition matrix (Markov) that tracks how many RNs in each tenure band stay, promote, or leave, so turnover is modeled by cohort rather than as one blended 18%. Layer a retirement-risk list on top.
- Gap and action plan. Compare the two and translate the gap into recruiting, residency slots, and agency authorization, phased by month.
- Scenario planning. Run at least three cases (occupancy ±5 points, turnover ±3 points) and state which decisions change in each.
Metrics that should sit on the board dashboard: RN vacancy rate, time-to-fill, first-year and 90-day turnover for new hires, agency share of total nursing hours, overtime as a percentage of worked hours, residency completion rate, and cost per hire. Agency percentage and new-graduate turnover are the leading indicators; vacancy rate is the lagging one. If agency share starts climbing two quarters before vacancy does, the plan is already failing.