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Questions and Answers
What is the typical use of a 15-17 gauge venipuncture needle?
What is the typical use of a 15-17 gauge venipuncture needle?
- Collection of donor units (correct)
- Used on older children and adult patients with small veins
- Routine venipuncture on patients with normal veins
- Transfer needle rather than for blood collection
When are 22 gauge venipuncture needles typically used?
When are 22 gauge venipuncture needles typically used?
- As a transfer needle rather than for blood collection
- For routine venipuncture on patients with normal veins
- For syringe draws on difficult veins (correct)
- On the veins of infants and children
What is the primary use of 20-21 gauge venipuncture needles?
What is the primary use of 20-21 gauge venipuncture needles?
- Transfer needle rather than for blood collection (correct)
- Collection of donor units
- Routine venipuncture on patients with normal veins
- Used on older children and adult patients with small veins
Which gauge needle is considered the standard for routine venipuncture on patients with normal veins?
Which gauge needle is considered the standard for routine venipuncture on patients with normal veins?
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When are 23 gauge venipuncture needles typically used?
When are 23 gauge venipuncture needles typically used?
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Study Notes
Venipuncture Needle Gauges
- 15-17 Gauge Needles: Typically used for high-volume blood draws, transfusions, or when blood flow needs to be quick and efficient.
- 22 Gauge Needles: Commonly used for routine blood draws, especially in patients with smaller veins or when the volume required is moderate.
- 20-21 Gauge Needles: Primarily used for general venipunctures and intravenous (IV) placements, providing a balance between flow rate and vein preservation.
- Standard Gauge for Routine Venipuncture: The 21 gauge needle is considered the standard for routine venipuncture in patients with normal vein sizes due to its adequate lumen for blood draw while minimizing trauma.
- 23 Gauge Needles: Typically used for pediatric patients or in cases where veins are very small, as they cause less trauma and discomfort during the procedure.
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