Blood obtained from parts of the body that are located at some distance from the heart.
Example: Blood drawn from the earlobe, fingertip, or heel pad.
Source:
PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1125 (https://doi.org/10.1515/pac-2016-1120)