What technique can minimize bruising when drawing blood from geriatric patients?

Applying the tourniquet more loosely and over clothing is an effective technique to minimize bruising when drawing blood from geriatric patients. Older adults often have more fragile skin and blood vessels, making them more susceptible to bruising and tissue damage. By using a looser tourniquet, there is less pressure applied to the veins, reducing the likelihood of rupturing small blood vessels. Additionally, placing the tourniquet over clothing provides a layer of protection that can help further decrease potential damage to the skin and underlying tissues.

This technique is particularly important for the geriatric population, as they may have age-related changes in their vasculature, including thinner skin and reduced elasticity of blood vessels. The goal is to facilitate venous filling and visibility while minimizing trauma to the tissues surrounding the vein.