My baby has ESR result of 50 ( lab limit is 29-30) and hemoglobin level of 10.5, is it a problem?

my baby daughter is 2yr and 7 months and was bad cold and cough was three weeks then she had breathing difficulties.then doctor given drop for nose ,then it came relief ,and doctor asked to do FBC and ESR test then the doctor highlighted that ESR level is high report result is 50 ( required limit is 29-30) and also himoglobin level was 10.5 doctor I am in confused mind what is this issue and do we need to repeat same test after one month kindly advise me .

Thanking you

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