ATFirst™ · Cardiac marker and CRP rapid tests
ATFirst™ CRP Rapid Test (C-Reactive Protein)
A qualitative lateral flow cassette that shows whether C-reactive protein in serum is raised above the level defined in the insert.
- Professional use
- Serum
- 20 tests per kit
Intended use
C-reactive protein is an acute-phase protein made by the liver. Its concentration in blood rises when there is inflammation, for example in bacterial infection or after tissue injury, and falls again as the inflammation resolves. A CRP rapid test shows, qualitatively, whether that rise is present.
The ATFirst™ cassette is for professional use. It indicates whether CRP in a serum specimen is above the level defined in the insert, and so supports clinical assessment where inflammation is suspected. First Diagnostic™ Corporation distributes it with its other ATFirst™ rapid tests.
Specifications
| Brand | ATFirst™ |
|---|---|
| Catalog number | 85226400025 |
| Format | Lateral flow cassette |
| Analyte / target | C-reactive protein (CRP) |
| Specimen | Serum |
| Pack size | 20 tests — confirm at quotation |
| Intended user | Healthcare professionals |
| Regulatory | Documentation available on request |
| Instructions for use | Supplied with each kit; current insert on request |
How the test works
CRP in the specimen binds to anti-CRP antibody carried on colored particles. As the mixture moves along the membrane, a second anti-CRP antibody at the test line holds the complex in place; a control line shows that the strip has run correctly. This is the usual arrangement for a test of this type, and the insert describes the exact line layout and how to read it. Background: how lateral flow tests work.
What to confirm in the insert
For CRP the single most important figure is the level at which the test line becomes visible, because that level decides what a result means clinically. It is stated in the insert supplied with each kit, together with specimen handling, sample volume, read window, storage and interpretation.
Ask sales@firstdiagnostic.com for the current insert before you order. Published inserts are collected on the product inserts page.
Limitations
- CRP is non-specific. A raised result shows that inflammation is likely, not where it is or what is causing it.
- A CRP result does not on its own separate bacterial from viral infection and is not a basis for prescribing decisions without clinical assessment.
- The cassette gives no numeric value. Where a concentration or a trend is needed, use a quantitative laboratory method.
- It does not provide the high-sensitivity measurement used in cardiovascular risk assessment.
Frequently asked questions
Can whole blood be used?
The catalog lists serum. Use only the specimen types named in the insert.
Does the test give a CRP value?
No. It is a qualitative visual test.
How is it supplied?
20 tests per kit under catalog number 85226400025, confirmed at quotation. Regional supply is described on our country station page, and distributors can apply through the distributor application.
Related rapid tests
- Cardiac marker and CRP rapid tests — Category overview.
- ATFirst™ cardiac troponin I rapid test — Cardiac marker cassette.
- ATFirst™ cardiac 3-in-1 combo rapid test — Three cardiac markers.
- ATFirst™ Flu A & B rapid test — Influenza antigen test.
Ask for a CRP rapid test quotation
We answer quote requests with pricing, lead time and the documentation available for your market.
Regulatory status: Products shown on this website are for professional in vitro diagnostic use. They are not cleared, approved or authorized by the U.S. Food and Drug Administration and are not offered for sale in the United States. Product availability and regulatory status vary by country; contact us for the status in your market.