What is the main distinction between venipuncture and capillary puncture?

The main distinction between venipuncture and capillary puncture lies in the source of blood collection. Venipuncture is a procedure where blood is drawn directly from a vein, which is typically larger and provides a larger volume of blood for testing. This process is generally used for routine blood tests or when a significant amount of blood is required for laboratory analysis.

On the other hand, capillary puncture involves obtaining blood from the capillaries, usually through a small puncture in the skin, often on a fingertip or heel. This method is commonly used for quick tests or when access to veins is difficult, such as in infants.

Understanding this distinction is crucial for phlebotomy practice, as it influences the technique used, the equipment needed, and the patient experience during the blood collection process.