Assertion: syringe's needle | /r/ObjectUse | used for blood donation
Facets:
value: most commonly
type: DEGREE
Source sentences:
text: 21-gauge needles are most commonly used for drawing blood for testing purposes, and 16- or 17-gauge needles are most commonly used for blood donation, as the resulting lower pressure is less harmful to red blood cells (it also allows more blood to be collected in a shorter time).