Rapid Diagnostic Procurement Guide
Confirm the Intent
First, know exactly what you want the test to detect and how it will fit into your clinical service.
Check the manufacturer's instructions for use for the following:
- test condition or marker
- What the test is detecting: antigen, antibody, or other analyte.
- The target patient population.
- Whether intended for professional use or for self-testing.
- its role in a screening, diagnostic or established testing pathway
-Any restrictions related to symptoms or time since exposure.
Tests for the same condition do not necessarily have to be interchangeable. For example, an antibody test might address a different clinical question than an antigen test.
The responsible clinical or laboratory team must approve suitability prior to purchase. WHO guidance emphasises that a diagnostic product should be suitable for the users and the setting where the test is to be performed.
Match the Sample to the Assay
“Blood test” is not a sufficiently specific procurement specification.
A kit may accept serum, plasma, venous whole blood, capillary whole blood, or some combination of these. Likewise, a respiratory test may require a particular type of swab and collection site.
Review the acceptable specimen type, collection device, sample volume and handling requirements. Don’t think a kit validated for one type of specimen can be used on another type. Specimen incompatibility is a particular risk in the procurement of diagnostics, according to WHO.
Product Documentation Review
Request documents for the exact product supplied, including the manufacturer catalogue number and version.
Your procurement file should identify the product, the intended use, the applicable regulatory status and supplier traceability. Confirm local requirements; don’t assume that an overseas certificate by itself is permission for local use.
Furthermore, a manufacturer’s quality management certificate is not the same as evidence of the clinical performance of a particular test. “Both must be properly reviewed.
Check the exact product’s current listing and public report, where relevant, and WHO prequalification. The WHO prequalified option is not available for all rapid test categories.
WHO procurement guidance recommends that quality and performance requirements are documented with appropriate evidence to substantiate the claims for the products.
Quality control should include planning and staff training.
Rapid testing is still a controlled process.
Before you introduce a product, confirm the training required for specimen collection, test timing, result interpretation, invalid results and documentation.
Review the requirements for control material, new lot checks and external quality assessment as appropriate. The quality plan should specify who performs these checks and what happens when the results are not acceptable.
The presence of a visible control line does not prove that each collection and testing step was correct. WHO guidance describes the limitations of built-in controls and the need for broader quality assurance.
Agree on Delivery and After-Sales Support
Set expectations for delivery, traceability of batches and the process for reporting damaged or unsuitable goods before you issue the purchase order.
Ask about the supplier’s procedures for dealing with product complaints, product recalls, short deliveries, and technical questions. Keep records to link batches received with the purchase order and subsequent stock movements.
Review replenishment lead times and contingency arrangements for critical test services. The alternative product may require technical approval and training prior to use.
Why Elumia Med Store?
Elumia Med Store is an online catalogue of medical equipment and healthcare consumables for healthcare buyers in the UAE with delivery across the country. It also includes supporting supplies like alcohol swabs and blood collection products.
When you are going to buy diagnostics, send your approved specs and check if each item you need is available. Before ordering any rapid diagnostic kit, you are considering requesting the exact product details, documentation, pack contents, storage requirements and remaining shelf life.
Visit Elumia Med Store to see our healthcare supplies and talk about your procurement needs.
Final Thoughts
Reliable rapid testing starts with careful buying. Please pay as much attention to intended use, specimen compatibility, performance claims, and quality control as you do to price and turnaround time.
A documented checklist makes it easier for purchasing and technical teams to collaborate. Confirming the full testing requirements prior to ordering will help your facility reduce inappropriate purchases and promote a more uniform diagnostic service.
Questions and Answers
1. What should I check first when buying rapid diagnostic kits?
Verify specimen type and intended use. The kit must be appropriate for the clinical question, patient population, testing environment and staff that will use it.
2. Is a high percentage of accuracy sufficient to choose a rapid test?
No. Look at sensitivity, specificity, confidence intervals, study conditions and reference method. Qualified staff should determine whether the evidence supports your intended use.
3. Are the rapid diagnostic kits supplied with all the consumables required?
Not necessarily. Collection devices, controls, timers or readers may need to be purchased separately. Check the manufacturer’s kit contents and the “materials required but not provided” section.
4. What is the minimum remaining shelf life for a kit upon delivery?
Establish a minimum based on expected usage, delivery frequency, and product requirements. Document it before purchase so that the inventory can be put to reasonable use before it expires.
5. Do rapid tests with a control line need quality control?
Yeah. A built-in control line is not a substitute for the total quality assurance process. Follow the manufacturer's instructions and your facility's controls, personnel competency, lot checks and quality assessment requirements.