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Answered by: Dr Sri Viknarajan
How do KKM diognose a POSITIVE COVID patient from the laboratory test result? Dr Hisham said, “based on our current guidelines for interpretation of pcr results :
Must have detected E gene (screening target) & RdRp (confirmatory target)
He futhermore added, “ some kits that are being used by private labs do come with three targets which include the E gene, RdRp and N gene.
So if there are instances where only N is detected & if the Ct value is above 37, we advised to repeat pcr after 48 hr, with freshly collected nasopharyngeal swab”
My question is, if the result came from private hospital only N gene is detected (RdRp and E gene -ve), can the private hospital sent the patient as a positive covid patient to covid hospital without repeating the test? The individiual is asymptomatic,no travelling history, no close contact.
Can N gene detected alone can be diignose as a POSITIVE covid patient? I ve read somewhere, it is presumptive positive.
Thank you for your time. Really appreciate your respond
The following answers regarding your current queries are just general descriptions. Click on this link (DoctorOnCall) for a private consultation with our doctors.
Accroding to Dr Noor Hisham, current guidelines for interpretation of pcr results must have detected E gene (screening target) & RdRp (confirmatory target) nasopharyngeal swab. You may consult a MOH doctor by clicking Ask Doctor at the Ministry of Health website (COVID-19 Portal) to ask any health issues related to COVID-19 starting from 8.30 am to 5.00 pm.
After 5.00 pm till 12.00 am, please direct your enquiries to our DoctorOnCall website at this link https://www.doctoroncall.com.my/tanya/.