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Questions about Chlorhexidine Gluconate (CHG)

1. What are the contraindications of CHG? How does this compare to PVP-I?
2. What did Dr. Maki’s study, cited by the CDC in it’s classifying 2% CHG formulations as “preferred”, actually test?
3. Doesn’t the CDC state that that we must use ChloraPrep^® for maintaining catheter sites?
4. If the CDC states that a 2% CHG formulation is "preferred", then why is there a need for combinations products such as ChloraPrep^® and Chlorascrub™, which contain CHG and alcohol?
5. Why is alcohol sometimes included in CHG formulations?
6. Is CHG approved as a safe drug?
7. Doesn’t the CDC recommend ChloraPrep^® and not Betadine^® for catheter site maintenance?