For the estimation of blood sugar, blood is collected in a fluoride bulb

• Blood is collected in a fluoride bulb for estimation because fluoride prevents the breakdown of glucose in the blood.
• It stops an enzyme called enolase, which is needed for glycolysis
• This helps keep the glucose level stable and ensures accurate test results.
• Without fluoride, blood cells would continue using glucose, leading to lower readings.
• That’s why fluoride bulbs are important for glucose estimation in blood tests.