The Strep A Rapid Test - Pack of 20 cards by NADAL - NAL VON MINDEN is an innovative and highly effective diagnostic tool for the rapid detection of group A streptococcal antigen. This test is designed to provide results in just 5 minutes, making it ideal for use in clinical and home settings.

Intended Use

The NADAL® Strep A cassette is an immunochromatographic method for the qualitative determination of group A streptococcal antigen in throat swabs. This test is specifically indicated for the diagnosis of group A streptococcal infections, a condition that can cause sore throat, fever, and other complications if not treated promptly.

Reagents and Materials Provided

• 20 NADAL® Strep A cassette tests containing a membrane sensitized with rabbit anti-streptococcus A antibodies and colloidal gold.


• Dropper included for precise application.


• Extraction reagent No. 1: sodium nitrite 1.0 M (7 ml).


• Extraction reagent No. 2: acetic acid 0.4 M (7 ml).


• 20 extraction tubes to facilitate sampling.


• Additional material according to 39/42/EEC: 20 sterile throat swabs CE 0086.


• Positive control: Group A Streptococcus in solution (1×10⁸ organisms/ml) with 0.1% sodium azide as preservative.


• Tube rack and detailed instructions for use.

Test Performance

The Strep A Rapid Test offers exceptional performance, ensuring high accuracy in diagnosis. The main performance parameters are listed below:

• Sensitivity: 97.6% (95% CI, 93.8% to 99.4%)


• Specificity: 97.5% (95% CI, 93.7% to 99.3%)


• Positive predictive value (PPV): 95.3%


• Negative predictive value (NPV): 98.7%


• Accuracy: 97.5%

In a sample of 244 patients, the test provided 238 correct results without the need to perform a culture, demonstrating its reliability and speed.

Advantages of the Strep A Rapid Test

• Fast results in just 5 minutes.


• Easy to use, also suitable for home use.


• High sensitivity and specificity for accurate diagnosis.


• Complete materials provided for simple and quick execution.

Choose the Strep A Rapid Test - Pack of 20 cards for timely and accurate diagnosis of group A streptococcal infections. Make sure you always have this essential tool for the health of your family and your patients.