In what position should a patient be placed for a lumbar puncture?

For a lumbar puncture, the patient should be placed in the lateral recumbent position. This position allows access to the lower lumbar region of the spine, which is essential for the procedure. Being in a lateral recumbent position facilitates the opening of the intervertebral spaces and enables easier insertion of the needle between the vertebrae.

It also helps to flex the spine, which can increase the space between the vertebrae, making the procedure safer and more effective. Additionally, this position minimizes discomfort for the patient and reduces the risk of complications during the procedure. Proper positioning is crucial to ensure the success of the lumbar puncture and to obtain cerebrospinal fluid for analysis without damaging surrounding structures.

Other positions, such as supine or sitting, may not provide the same access and could potentially complicate the procedure. Being in a prone position is particularly unsuitable, as it obstructs access to the lumbar region entirely. Thus, the lateral recumbent position is the preferred and most effective choice for performing a lumbar puncture.