How to Prevent Stockouts in a Cath Lab

A risk based approach to protecting procedure readiness without carrying uncontrolled excess inventory. The purpose is to help teams make a clearer, better documented decision without turning a commercial checklist into a clinical recommendation.

Quick answer

Cath lab demand is sensitive to case mix, physician preference, emergency activity, size ranges and long international lead times. A stronger approach produces a replenishment model that protects critical references and escalates risk before stock reaches zero.

This cluster article supports the broader guide on Hospital Medical Supply Chain Management: A Practical Framework. The main search topic for this guide is cath lab inventory management. Related language includes prevent medical device stockouts, cath lab consumables inventory, cardiology supply chain, but the article uses those terms only where they help the reader rather than repeating them mechanically.

Why this matters

Medical inventory has to be viewed as usable coverage, not simply units on a shelf. Reserved, quarantined, damaged, expired and short dated stock may all be physically present while remaining unavailable for normal use.

For cath lab managers, hospital stores, procurement and cardiology operations, the practical risk is not limited to price. A wrong reference, incomplete pack, uncertain shelf life, late shipment or unsupported alternative can create rework, unused inventory and avoidable delays. A useful buying process therefore connects the technical request, commercial offer and receiving standard.

The best time to resolve ambiguity is before the purchase order. Once goods are dispatched, every unclear field becomes harder and more expensive to correct. The controls below are designed to move important questions to the beginning of the process.

Key checks

These checks should be adapted to product risk and organisational policy. A routine low risk item and a sterile implantable or procedure critical device should not automatically receive the same depth of review.

A practical workflow

1. Step 1: Build a catalogue level critical item list. Record the owner, evidence and completion date so the action can be checked later.
2. Step 2: Measure consumption and variability by exact reference. Record the owner, evidence and completion date so the action can be checked later.
3. Step 3: Set minimum, reorder and escalation levels. Record the owner, evidence and completion date so the action can be checked later.
4. Step 4: Review scheduled cases against usable inventory. Record the owner, evidence and completion date so the action can be checked later.
5. Step 5: Track open orders and delayed lines every week. Record the owner, evidence and completion date so the action can be checked later.
6. Step 6: Conduct a root cause review after every significant stockout. Record the owner, evidence and completion date so the action can be checked later.

A workflow is only useful when exceptions are visible. If a field is unknown, mark it as unknown and assign an owner. Do not fill the gap with an assumption merely to complete the form. The decision record should show what was confirmed, what remained conditional and which stakeholder accepted the residual risk.

Documentation and verification

Reliable supply decisions depend on exact item records, observed lead times, lot and expiry information, and a visible link to scheduled activity. Each figure should have a defined source and owner so that teams can distinguish facts from assumptions.

A mature supply chain records exceptions as carefully as routine movement. Stockouts, urgent transfers, short dated acceptance and supplier delays should feed the next forecast and replenishment review rather than disappear after the immediate issue is solved.

For every important document, record the document title, issuing organisation, product or company scope, version or validity date, source and date reviewed. This simple index helps prevent a valid document from being attached to the wrong product or reused after it becomes outdated.

Minimum decision record

• The original request and clinician or technical approval where required
• The exact quoted product identity, pack and quantity
• Supplier assumptions, deviations and proposed alternatives
• Quality, regulatory and traceability evidence proportionate to risk
• Price basis, landed cost assumptions, lead time and shelf life
• Approval names, dates and any conditions
• Receiving checks and final disposition of discrepancies

Questions to ask before approval

• Can the supplier demonstrate the critical references described in the RFQ, and can the answer be connected to the exact quoted product?
• Can the supplier demonstrate the size curve described in the RFQ, and can the answer be connected to the exact quoted product?
• Can the supplier demonstrate the case schedule described in the RFQ, and can the answer be connected to the exact quoted product?
• Can the supplier demonstrate the open orders described in the RFQ, and can the answer be connected to the exact quoted product?
• Can the supplier demonstrate the alternatives described in the RFQ, and can the answer be connected to the exact quoted product?

Ask suppliers to answer against each RFQ line rather than in a general email. A line level response makes it easier to compare offers, detect partial matches and transfer the approved information into the purchase order.

Common mistakes

• Forecasting only by total guidewires, balloons or stents. Correct it by returning to the approved requirement, recording the missing evidence and resolving the gap before the order or release decision.
• Treating all sizes as interchangeable inventory. Correct it by returning to the approved requirement, recording the missing evidence and resolving the gap before the order or release decision.
• Waiting for the monthly count to identify a shortage. Correct it by returning to the approved requirement, recording the missing evidence and resolving the gap before the order or release decision.
• Relying on unconfirmed supplier availability. Correct it by returning to the approved requirement, recording the missing evidence and resolving the gap before the order or release decision.

Most procurement errors are not caused by one dramatic failure. They develop through several small gaps, such as an abbreviated name, an unrecorded assumption and a receiving check that compares quantity but not reference. Closing those gaps consistently is more effective than adding a large document request after a problem occurs.

Practical example

The lesson is not that every enquiry must become slow. A structured template is usually faster because it reduces repeated emails and makes approval requirements visible from the start.

Final checklist

• ✓ Critical references has been reviewed: Identify products whose absence can cancel or materially delay a procedure.
• ✓ Size curve has been reviewed: Track usage by exact reference and size rather than only product family.
• ✓ Case schedule has been reviewed: Link planned procedures and known complexity to upcoming demand.
• ✓ Open orders has been reviewed: Track confirmed quantity, supplier status and expected usable arrival date.
• ✓ Alternatives has been reviewed: Maintain clinician reviewed contingency options where appropriate.

Before closing the file, confirm that the purchase order reflects the approved quotation rather than an earlier draft. At receiving, compare the physical label and condition with the same approved record. This completes the link between request, order and delivered product.

Frequently asked questions

Related AJA guides

• Hospital Medical Supply Chain Management: A Practical FrameworkA practical framework connecting demand planning, sourcing, receiving, inventory control and clinical availability.
• Medical Device Shelf Life and Expiry ManagementA practical guide to remaining shelf life requirements, FEFO controls, short dated decisions and receiving records.
• UDI, Lot Numbers and Traceability in Medical Device PurchasingAn operational guide to recording product identifiers and building a traceability trail from quotation to use or disposal.
• Demand Forecasting for High Value Medical DevicesA practical forecasting method for products with variable demand, size ranges, high cost and expiry exposure.

Browse the medical device product catalogue, review the brand sourcing profiles or read about AJA International’s quality and compliance approach.

Official resources and further reading

• WHO health product procurement resources
• FDA Unique Device Identification system
• AccessGUDID public device database

Editorial review: Prepared for publication in 2026. Regulatory, registration and product information can change, so readers should confirm current requirements and manufacturer documentation before acting.