Kerning's sign is associated with the symptoms of disease?

ESIC Nursing Officer 2016 (shift-1)

Medical Surgical Nursing

Easy

Appeared in: ESIC Nursing Officer 2016 (shift-1)

Explanation

Kernig's sign is a classic physical examination finding that indicates meningeal irritation.
Meningitis is the inflammation of the meninges, the protective membranes covering the brain and spinal cord, which is the underlying cause of the irritation.
The sign is elicited by flexing the patient's hip and knee to 90 degrees and then attempting to extend the knee. A positive sign is resistance or pain in the hamstrings, preventing full extension.
This pain occurs because extending the leg stretches the inflamed and irritated meninges and spinal nerve roots.

Option A: Encephalitis is inflammation of the brain tissue itself. While it can present with altered mental status, Kernig's sign is more specific to inflammation of the meninges (meningitis).
Option C: Appendicitis is inflammation of the appendix, causing abdominal pain. Its characteristic signs are abdominal, such as McBurney's point tenderness, not meningeal signs like Kernig's.
Option D: A vertebral prolapse (herniated disc) causes nerve root compression, leading to radicular pain. The specific test for this is the Straight Leg Raise (SLR) test, not Kernig's sign.

Visual 1: Diagram - A clear illustration of how to perform Brudzinski's neck sign, where passive neck flexion causes involuntary hip and knee flexion, providing a comparison to Kernig's sign.
Visual 2: Infographic - A comparative chart showing the key diagnostic signs for Meningitis (Kernig's, Brudzinski's), Appendicitis (McBurney's point), and a Herniated Disc (Straight Leg Raise test) to help differentiate these conditions.

Clinical Relevance

Nursing practice connection: Use the key finding related to Clinical signs of meningitis to guide bedside assessment, documentation, and the next nursing action.
Prompt recognition of meningeal signs like Kernig's is critical for the early diagnosis and treatment of meningitis, a medical emergency that can lead to severe neurological damage or death if delayed.
Nurses are often the first to assess patients and must be able to perform and interpret these signs to facilitate rapid medical intervention, including initiating isolation precautions for suspected bacterial meningitis.
What if? - If a patient has a positive Kernig's sign but the CSF analysis shows a lymphocytic predominance and normal glucose, the cause is more likely to be viral meningitis rather than bacterial meningitis, which typically shows a neutrophilic predominance and low glucose. This distinction is crucial for determining the course of treatment.

How to Approach the Question

Identify the key term in the question: 'Kernig's sign'.
Analyze the image, which provides a visual definition of the Kernig's sign test maneuver, confirming your understanding.
Recall the pathophysiology indicated by a positive Kernig's sign, which is irritation or inflammation of the meninges.
Evaluate the options to determine which disease is characterized by meningeal inflammation. Meningitis is the direct inflammation of the meninges.
Eliminate the other options by considering their primary locations and characteristic signs (brain parenchyma for encephalitis, abdomen for appendicitis, and spinal nerve roots for vertebral prolapse).

Concept Tested & Keywords

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