Question

Which of the following is NOT an appropriate location of intraosseous access?

A) Distal radius.
B) Proximal humerus.
C) Sternum.
D) Iliac crest.
E) All of the above are appropriate location for IO access.

Answer 1

The sternum is not an appropriate location for intraosseous access due to its proximity to vital organs, which could be at risk during the procedure.

Step-by-step explanation:

The question posits which location is NOT an appropriate site for intraosseous (IO) access. Intraosseous access involves inserting a needle into the marrow cavity of a bone to provide a non-collapsible entry point into the systemic venous system. This is often used in medical emergencies when traditional venous access is difficult or impossible. The locations commonly used for IO access include the proximal tibia, distal tibia, and proximal humerus. Historically for procedures like bone marrow transplantation, the iliac crest has been used due to easy accessibility and isolation from vital organs.

Based on the listed options, the sternum is NOT an appropriate location for IO access in most cases, particularly because of the danger it poses to the underlying vital organs, such as the heart and great vessels. In an emergency situation, the sternum's proximity to vital organs makes it a riskier choice for IO access compared to other locations mentioned.