What gauge needle is used for an elderly patient?

For elderly patients, it is advisable to use a smaller needle gauge when drawing blood. This helps minimize discomfort and reduces trauma to their veins. Typically, a 21-gauge needle is suitable for elderly patients, but the healthcare professional may adjust the needle size based on the patient's specific needs. Smaller gauge needles (such as 23- or 25-gauge) may also be used to reduce discomfort further, especially if the patient has fragile or delicate veins.