Why do they draw so much blood for a blood test?

Answered by 1 Apollo Doctors

Dr Shaik Kalam

General Practitioner

MD (Physician)
3+ Yrs

Consult Now

They only draw 10 mililitres max

Dr. Shaik Suggests...

Take a Rapeseed Allergy Test Test or Take a HLA - (Class II ) Typing Test

Book Rapeseed Allergy Test Test Book HLA - (Class II ) Typing Test

Answered 24/07/2025

More COMPLETE BLOOD COUNT (CBC) Health Queries

View all

My 7.5 year old son has been unwell for the past 15 days. He gets a fever every 6 to 8 hours. He is being treated with antibiotics, fever syrup, and multivitamins. We have done all the blood tests, and everything came back negative. What could be the reason for this persistent fever? What should we do next, as it has already been 15 days? We are worried because we do not know what is happening. Please advise.

Answered by Apollo Doctors

CBC test can aid in early recognition of COVID-19 in patients

Answered by Apollo Doctors

I am suffering from cold and fever. Please help me understand if my report is normal? Please reply, I shall be very thankful to you sir.

Answered by Apollo Doctors

Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.