Which procedure is being performed in the following image?

AIIMS Rishikesh NO - 2019

Medical Surgical Nursing

Medium

Appeared in: AIIMS Rishikesh NO - 2019

Explanation

The image displays the classic positioning and technique for a lumbar puncture.
A needle is shown being inserted into the lumbar subarachnoid space, which is the defining action of this procedure.
The purpose is to access cerebrospinal fluid (CSF), which is done between the L3-L4 or L4-L5 vertebrae to avoid spinal cord injury.
The inset diagram confirms the needle's destination is the spinal canal, ruling out other procedures.

Option B: While 'Spinal tapping' is a correct and commonly used synonym for Lumbar Puncture, 'Lumbar Puncture' is the more formal and precise medical term. In an exam setting, the most formal term is often considered the best answer.
Option C: Bone marrow aspiration involves collecting bone marrow, not cerebrospinal fluid. The procedure is performed on a bone, most commonly the posterior iliac crest (hip bone), not the spinal canal.
Option D: Abdominal tapping, or paracentesis, involves inserting a needle into the peritoneal cavity of the abdomen to drain ascitic fluid. The image clearly shows the procedure being performed on the patient's back.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of a lumbar puncture procedure from a medical illustration as background academic context rather than a clinical decision trigger.
A lumbar puncture is a critical diagnostic tool for suspected central nervous system infections like meningitis, subarachnoid hemorrhage, and certain neurological disorders like Guillain-Barré syndrome.
Nurses play a vital role in patient positioning, maintaining asepsis, correctly labeling CSF samples, and monitoring for complications, especially post-lumbar puncture headache.
A key safety check is to rule out increased intracranial pressure (ICP) before the procedure, as performing an LP in such cases can lead to fatal brainstem herniation.

How to Approach the Question

First, carefully analyze the provided image. Identify the patient's position, the anatomical location of the procedure, and the equipment being used.
Observe that the patient is in a side-lying, curled position and a needle is being inserted into the lower back.
Note the inset diagram, which clarifies that the needle is entering the space around the spinal cord between the vertebrae.
Evaluate the options based on your visual analysis. 'Lumbar Puncture' and 'Spinal tapping' refer to this exact procedure.
Eliminate 'Bone marrow aspiration' (done on the hip bone) and 'Abdominal tapping' (done on the abdomen) as they occur at different anatomical sites.
Between 'Lumbar Puncture' and 'Spinal tapping', recognize that 'Lumbar Puncture' is the more formal medical term and is generally preferred as the 'best' answer when both synonyms are offered.

Concept Tested & Keywords

Concept Tested: Identification of a lumbar puncture procedure from a medical illustration.
Stem keywords: procedure, image
Lead-in keywords: Which
Clinical cues: Patient in lateral decubitus position.
Clinical cues: Needle insertion in the lumbar spine.

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