| A | B |
| capillaries | microscopic blood vessels that contain a mixture of arterial and venous blood |
| capillary action | process by which blood flows freely into a capillary tube in microcollection procedures |
| interstitial fluid (tissue fluid) | all the fluid except blood that is found in the space between tissues |
| microcollection | collecting a small amount of blood |
| POCT | point-of-care testing |
| finger to use in capillary puncture | 3rd or 4th fingers |
| appropriate site for infant - capillary puncture | heel stick |
| cyanosis | where skin and mucous membranes are blue because of oxygen deficiency |
| average skin puncture depth for adults | 2mm to 3mm |
| average skin puncture depth for infants- heel stick | should not exceed 2mm |