straight line blood set /strāt/ [ME, streght] , a common device, composed of plastic components, for delivering blood infusions. It includes plastic tubing, a clamp, a drip chamber, and a filter. Some kinds of straight-line blood sets contain filters within drip chambers; others have separate filters. The latter kind can be filled by squeezing the attached drip chamber, but it must not be squeezed itself or it may rupture. The former kind can be filled by squeezing the section of the blood set that contains the filter and the drip chamber. Before infusion, the filter of either kind is tapped with the fingers to dislodge any trapped air bubbles. Compare component drip set, component syringe set, microaggregate recipient set, Y-set.
