CAMRT Radiography Practice Exam

Where is the injection site for a Myelogram procedure?

1. Intravenous site

2. Subarachnoid space

3. Pectoral region

4. Intramuscular area

The correct answer is: Subarachnoid space

The injection site for a Myelogram procedure is the subarachnoid space. This is the area between the arachnoid membrane and the pia mater, where cerebrospinal fluid (CSF) is located. During a Myelogram, a contrast dye is injected into this space to enhance the visibility of the spinal cord and nerve roots during imaging. This technique is primarily used to diagnose conditions such as spinal stenosis, herniated discs, or tumors in that region. The other options are not suitable for this procedure. An intravenous site refers to where fluids or medications are administered directly into a vein, which is not sufficient for a Myelogram. The pectoral region is related to the chest area and has no relevance to spinal imaging. An intramuscular area, while an appropriate site for certain types of injections, does not provide access to the spinal canal necessary for the Myelogram. Thus, the subarachnoid space is the correct and targeted area for this injection, allowing for precise visualization and evaluation of the spinal structures.