PRN nurses, or ""as needed"" nurses, typically have a flexible work schedule that can vary significantly based on the needs of the healthcare facility. The number of shifts they work can fluctuate widely, often ranging from a few shifts per month to several per week, depending on staffing requirements and their own availability. In summary, PRN nurses enjoy a flexible work arrangement, which allows them to adapt their schedules according to the demands of the healthcare environment. Their shift frequency can vary greatly, with some working only a handful of shifts each month, while others may take on multiple shifts weekly, depending on the needs of the facility and their personal commitments.