Inventory management: how to apply it in hospitals

Inventory management in healthcare institutions is a complex challenge of modern logistics. While in a conventional company inventory is a tool for financial balance, in the hospital setting it is also a patient safety factor. A missing item does not just mean a lost sale, but an interrupted treatment, a postponed surgery or even an unfavorable clinical outcome.

This article details practical strategies for applying this concept in the hospital ecosystem, where process precision saves lives.

What is inventory in a business context?

In the corporate world, inventory is the systematic process of recording, monitoring and auditing all of an organization’s physical items. The central goal is to keep the capital tied up in products as low as possible without compromising the ability to meet demand.

Efficient management systems rely on three pillars to maintain control:

• Safety stock ( buffer stock ): an additional reserve meant to absorb unexpected fluctuations in demand or delivery delays by suppliers.

• Reorder point ( ROP ): the stock level that signals the ideal moment to place a new purchase order.

• Replenishment time ( lead time ): the interval between placing the order and the product being available for use or sale.

The business logic is to ensure the right item, in the right quantity, at the right time. But when this logic is applied to the hospital setting, the idea of the right time takes on the character of clinical urgency.

What makes hospital inventory unique

Unlike an industrial warehouse, hospital inventory is of critical importance and includes an enormous variety of inventoried products. It covers thousands of items, from low-cost ones such as gauze and syringes to high-complexity prostheses and implantable devices, known as OPME (orthoses, prostheses and special materials) , whose value can reach tens of thousands of reais.

The financial impact of inventory is significant (it can range from 15% to 20% of a hospital’s operating assets), depending on the institution’s size and care profile.

In addition, management faces a range of regulatory requirements. The traceability of medications and medical materials is mandatory and inspected by bodies such as Anvisa (National Health Surveillance Agency), which requires strict control of batches, expiration dates and consumption history for every unit used.

How to apply inventory management in hospital management

Successfully applying inventory management in healthcare institutions requires continuous, distributed monitoring, not just occasional item counts.

Mapping satellite stocks

A common mistake is trying to manage the hospital as if there were only one central stock. In practice, inventory is widely distributed across the institution.

To structure control, it is necessary to map every storage and consumption point:

• Central pharmacy and satellite pharmacies: responsible for dispensing and splitting medications into unit doses.

• Operating room: management of high-value materials, surgical kits and consigned items.

• CME ( Sterile Processing Center) : where inventory is cyclical, meaning the item is used, processed, sterilized and returned to stock.

• ICUs and inpatient units: care stocks for immediate use, often called bedside stocks.

Without this complete mapping, the inventory recorded in the system will hardly reflect the institution’s real stock.

Implementing cycle counting

Shutting down a hospital’s operation to take a full inventory is practically unfeasible. That is why the recommended practice is cycle counting.

Methodology: stock is divided based on the ABC curve (or Pareto curve), which classifies items according to their financial or operational relevance.

• Class A items (high value or criticality) are counted most often, frequently weekly.

• Class B items have an intermediate frequency.

• Class C items can be audited monthly or quarterly.

Accuracy target: benchmark institutions aim for accuracy rates above 97% or 98%, that is, an almost complete match between physical stock and what is recorded in the system.

Adopting the FEFO system (PVPS)

Because a large share of hospital supplies are perishable, it is essential to apply the FEFO (First Expired, First Out) method, or PVPS, as it is known in Portuguese.

In practice: hospital management systems should generate automatic alerts when certain products are approaching their expiration date, usually 30, 60 or 90 days in advance. This makes it possible to:

• reallocate items between departments with different consumption levels;

• prioritize the use of certain batches;

• negotiate exchanges or returns with suppliers when possible.

This practice reduces financial losses and improves inventory efficiency.

The impact on the revenue cycle

One of the most significant effects of a well-structured inventory shows up in the institution’s financial health. There is a direct correlation between inventory management and hospital billing.

Invisible losses

When a material is used in a procedure but is not properly recorded, it generates an invisible loss, and the hospital takes a double hit: it loses the physical item and fails to bill it to the health plan.

Denials and auditing

Discrepancies between the consumption recorded in the medical record and inventory control are among the main causes of denials by payers.

Digital integration

More advanced hospitals use bedside barcode scanning systems. In this model, when the professional scans the medication or material:

• stock is updated automatically;

• the item is recorded in the medical record;

• the charge is added to the patient’s hospital claim.

This integration reduces administrative errors and significantly increases revenue capture.

Technology: the future of supply management

Manual inventory management is gradually being replaced by technologies that reduce human error and increase traceability.

Automated dispensing cabinets: automated cabinets that release medications after the professional is authenticated and the item is linked to the patient, increasing access control and traceability.

RFID (Radio Frequency Identification): smart tags that allow multiple items to be read simultaneously, making it easier to control high-value materials, hospital linens and implantable devices.

Artificial intelligence applied to demand: algorithms capable of analyzing historical patterns, epidemiological seasonality and care profile to forecast future consumption and adjust stock levels more precisely.

These technologies turn inventory from a reactive activity into a predictive system.

Conclusion

Applying inventory management in hospitals goes far beyond organizing storerooms. It is an essential strategy for ensuring financial sustainability and care safety.

By connecting the warehouse, care stocks, the clinical record and hospital billing, the institution creates an integrated control cycle. This cycle protects cash flow, improves operational efficiency and ensures that no patient goes without treatment because of a logistics failure.