In the eclipse collection method, which gauge needle is used?

In the eclipse collection method, which gauge needle is used?

• A. 19 gauge
• B. 23 gauge
• C. 20 gauge
• D. 21 gauge

Answer: (D)

The question is about choosing the right needle size for the Eclipse collection method, which means balancing how fast blood should flow into the collection tubes with patient comfort and sample quality. A 21-gauge needle offers a good middle ground: its lumen is large enough to provide a steady, reliable draw into evacuated tubes, reducing the chance of slow collection or underfilling, but not so large that it causes unnecessary pain or tissue trauma. A larger bore like 19 gauge would be more painful and harsher on tissue, while a smaller bore like 23 gauge would slow the flow and complicate timely tube filling. A 21 gauge is a standard choice in many phlebotomy procedures and aligns well with the Eclipse system’s collection needs. Remember that needle gauge is inversely related to diameter: lower numbers mean bigger bore, higher numbers mean smaller bore, so 21G hits the balance often used for routine collections.

The question is about choosing the right needle size for the Eclipse collection method, which means balancing how fast blood should flow into the collection tubes with patient comfort and sample quality. A 21-gauge needle offers a good middle ground: its lumen is large enough to provide a steady, reliable draw into evacuated tubes, reducing the chance of slow collection or underfilling, but not so large that it causes unnecessary pain or tissue trauma. A larger bore like 19 gauge would be more painful and harsher on tissue, while a smaller bore like 23 gauge would slow the flow and complicate timely tube filling. A 21 gauge is a standard choice in many phlebotomy procedures and aligns well with the Eclipse system’s collection needs. Remember that needle gauge is inversely related to diameter: lower numbers mean bigger bore, higher numbers mean smaller bore, so 21G hits the balance often used for routine collections.