Sammanfattning
Intraosseous administration of fluids and drugs is valuable when vascular access is difficult to achieve. Intraosseous needles
are useful tools in such cases. Sampling of aspirates through such needles have raised concern regarding the possibility that
aspirated bone marrow particles could damage analysis equipment.
We recommend that point-of-care equipment should be used as far as possible when intraosseous aspirates are analyzed. This is
especially relevant when whole blood (i.e. blood gases) is analyzed.
When centrifuged, possibly occurring bone marrow particles are deposited in the pellet, whereas the supernatant essentially
corresponds to plasma. We have successfully analyzed creatinine, morphine and troponin in such samples. Leucocytes and
platelets, which are formed in the bone marrow, may cause falsely elevated values when intraosseous aspirates are analyzed. The
risk of hemolysis, and its potential effect on certain analyses, should be considered.