Inverness Medical Innovations

Clearview

• Clearview - HCG
• Clearview - EASY HCG
• Clearview - Exact Strep A
• Clearview - hCG Combo
• Clearview - RSV
• Clearview - EASY LH
• Clearview - Exact Influenza A&B
• Clearview - Careplan VpH Glove
• Clearview IM
• Clearview - Chlamydia MF
• Clearview - D-dimer
• Clearview - H.pylori
• Clearview - iFOB
• Clearview - TB ELISA
• Clearview - Malaria
• Clearview Exact PBP2a

Frequently Asked Questions

 

• What swabs can be used with Clearview Exact Strep A?
• Can saliva or sputum samples be used with Clearview Exact Strep A?
• If I want to perform bacterial culture in addition to the Clearview Exact Strep A test do I need to take two swabs from the patient?
• The extraction procedure did not show the correct pink to yellow colour change. What does this mean?
• Can the kit be used directly from the fridge?
• The test line has appeared but it is fainter than the control line. How should this result be interpreted?
• A Patient was recently treated with antibiotics but still shows a positive result with Clearview Exact Strep A. Bacterial culture was negative.

 

What swabs can be used with Clearview Exact Strep A?

Any polyester (Dacron-tipped) swabs can be used (like the ones supplied in the test).  It is not possible to use calcium alginate or cotton tipped swabs.

 

Can saliva or sputum samples be used with Clearview Exact Strep A?

No. The test has only been validated for throat swab samples.

 

If I want to perform bacterial culture in addition to the Clearview Exact Strep A test do I need to take two swabs from the patient?

Two swabs may be taken but it is possible to use the same throat swab to perform both tests.  Inoculate the blood agar plate first and then perform the Clearview Exact Strep A. It is not possible to perform bacterial culture after the Clearview Exact Strep A test because the organisms will have been killed during the extraction procedure.

 

The extraction procedure did not show the correct pink to yellow colour change. What does this mean?

This would indicate an error in the test procedure.  It is essential that the correct extraction procedure is followed otherwise the Strep A antigen will not be extracted from the swab.

 

Can the kit be used directly from the fridge?

No.  All components should be allowed to equilibrate at 20^oC to 30^oC for a minimum of 30 minutes before use. Clearview Exact Strep A can be stored at room temperature; the temperature storage range is 2^oC to 30^oC

 

The test line has appeared but it is fainter than the control line.  How should this result be interpreted?

The presence of a test line no matter what strength is indicative of a positive result providing that the test was read at the correct read time.  The strength of the test line depends on the amount of Streptococcus group A antigen in the sample; hence low-level antigen would result in a weak test line being generated.

 

A Patient was recently treated with antibiotics but still shows a positive result with Clearview Exact Strep A.  Bacterial culture was negative.

Clearview Exact Strep A is an antigen detection test for Streptococcus group A so will detect both viable and non-viable organisms.  The positive result is due to non-viable Streptococcus group A organisms which have not yet cleared from the body. The same is true for any other rapid Strep A test.