A pharmacy inventory audit should not feel like a surprise. In my experience working with hospitals and health systems across the country, the organizations that handle audits well are not the ones that scramble in the final days before a surveyor arrives. They are the ones that have built preparation into their everyday operations.

That distinction matters more than most pharmacy leaders realize. An audit does not just measure what is on your shelves. It measures the reliability of your processes, the integrity of your data, and the discipline of your team. When those three things are in order, an audit becomes a confirmation rather than a risk.

Here is how I recommend approaching it.

The most common mistake I see before an audit is teams that go straight to the physical space — pulling items, reorganizing shelves, checking expiration dates — without first understanding what the system says should be there.

Your inventory management system is the source of record. Before anything else, run a full on-hand report and review it critically. Look for items with zero quantity that should have stock. Look for quantities that seem implausibly high or low given your dispensing patterns. Look for locations that have not been updated recently.

Physical discrepancies are easier to explain and resolve when you understand the data first. If you start with the shelves and work backward to the system, you will spend more time chasing inconsistencies that could have been identified and addressed in advance.

Not all inventory carries the same audit weight. Controlled substances, high-alert medications, and items with significant acquisition cost deserve the most attention before an audit, both because they carry the greatest compliance risk and because discrepancies in these categories draw the most scrutiny.

For controlled substances, verify that your perpetual inventory records match your physical counts at every storage location — central pharmacy, automated dispensing cabinets, satellite pharmacies, and any emergency or procedural areas. Discrepancies in controlled substance counts are not just an inventory problem. They are a regulatory one.

For high-alert medications, confirm that your storage, labeling, and segregation practices align with your policy. Auditors look for consistency between what your policy says and what your shelves show.

Audits do not stay in the central pharmacy. They follow medication wherever it goes — satellite locations, nursing unit ADCs, procedure rooms, emergency carts, and clinic spaces. If your preparation only covers the main pharmacy, you are leaving exposure in the places that are hardest to monitor.

Assign someone to physically walk each storage location in the weeks before an audit. They should be looking for expired or near-expired items, medications stored outside their designated location, unlabeled or improperly labeled products, and any items that do not appear in the system.

This is not a glamorous task, but it is one of the highest-value things a pharmacy team can do before an audit. The issues found during a pre-audit walk are issues you can resolve quietly. The same issues found during the actual audit become findings.

Auditors look at records as much as they look at shelves. Receiving logs, waste documentation, return-to-stock records, transfer documentation, and cycle count records all tell a story about how your pharmacy manages inventory on a day-to-day basis.

Before an audit, pull a sample of recent documentation and review it the way an auditor would. Are records complete? Are signatures present where required? Are dates accurate? Are there gaps that would be difficult to explain?

Incomplete documentation is often more damaging than a physical discrepancy, because it suggests a process failure rather than an isolated error. A missing item can be explained. A pattern of incomplete records is harder to defend.

Every pharmacy has something it knows is not quite right — a location that tends to drift, a process that is inconsistently followed, a documentation gap that has been on the list to fix. The time to address those issues is before the audit, not in the middle of it.

I have seen pharmacy teams try to make corrections during an active audit, and it rarely goes well. Auditors are trained to notice when things are being adjusted in real time. It raises questions about what else might be in the process of being corrected.

If you have known gaps, address them in the weeks before the audit with a documented corrective action. That documentation itself becomes evidence of a functioning quality process — which is exactly what auditors want to see.

The people who work in your pharmacy every day are your best asset during an audit. They know the space, the workflows, and the inventory better than anyone. But they also need to know what an audit involves and how to respond to questions.

Brief your team before the audit. Let them know who the auditors are, what areas will be reviewed, and how to handle questions they cannot answer on the spot. The right answer to a question you are unsure about is always to say you will find out and follow up — not to guess.

A calm, prepared team communicates confidence. That confidence is noticed.

The goal of audit preparation is not to pass a single review. It is to build the kind of operational discipline that makes every audit a routine event rather than a high-stakes one.

At IMC Pharma, we work with health systems to establish the processes, documentation habits, and data practices that support continuous inventory readiness. When those foundations are in place, an audit is not something you prepare for. It is something you are always ready for.

That is the standard worth building toward.