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Recent Artery Conversations

Serology for Evaluating Effectiveness of Vaccination
APR.10.2021

Lately I have been receiving patients who want to know if they have developed protection against Covid-19 after they have been vaccinated. We are offering them to do SARS-CoV-2 IgG and IgM spike or nucleocapside depending on the vaccine. But if still it hasn´t been approved to consider results in order to know the effectiveness of the vaccine, what advice can you give me? Here in Mexico City people are afraid that they didn´t received a good vaccine because of temperature, application, content, etc.
Please share.

Potassium - Critical Low End
APR.08.2021

Would participants mind sharing their Potassium critical low cutoff values. Arrhythmogenicity of high potassium levels is well documented and while posting this I am searching through PUBMED about the same for low potassium levels.
Please share.

Methemoglobin QC Materials
APR.08.2021

As most of you are aware that there is an increase in the use of sodium nitrite as a suicidal agent. I was wondering what everybody was using for QC material for the analysis of methemoglobin. Is there a commercial source for this, especially for elevated amounts (the RNA QC does have a methemoglobin, but all three levels are normal)? Any and all help would be appreciated.
Please share.

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