Question

What is the Ice Test used for in the diagnosis of myasthenia gravis (MG)?

1) To assess for Lhermitte's sign in multiple sclerosis (MS) patients
2) To evaluate for a positive Babinski sign, indicating an upper motor neuron (UMN) problem
3) To observe for resolution of ptosis after applying a bag of ice over the eye for 2 minutes
4) To diagnose peripheral neuropathy in diabetes and Guillain-Barré syndrome (GBS) patients

Answer 1

The Ice Test is used in the diagnosis of myasthenia gravis (MG) by applying a bag of ice over the eye for 2 minutes and observing for the resolution of ptosis.

Step-by-step explanation:

The Ice Test is used in the diagnosis of myasthenia gravis (MG). It is performed by applying a bag of ice over the eye for 2 minutes and observing for resolution of ptosis (drooping of the eyelid). In patients with MG, the ice causes a temporary improvement in muscle strength and the eyelid lifts up. This test is specific to myasthenia gravis and helps differentiate it from other conditions.