Correct Answer: B

Rationale: Socioeconomic status plays a crucial role in determining health outcomes as it impacts access to resources, education, living conditions, and healthcare services. Individuals with higher socioeconomic status generally have better health outcomes due to easier access to quality healthcare, healthier living environments, and resources to make healthier lifestyle choices.

Correct Answer: C

Rationale: Parkinson's disease is a neurodegenerative disorder characterized by the loss of dopamine-producing neurons in the brain. Dopamine is a neurotransmitter responsible for coordinating smooth muscle movements. The decrease in dopamine levels leads to the motor symptoms associated with Parkinson's disease, such as tremors, rigidity, and bradykinesia. Serotonin, adrenaline, and GABA are not primarily implicated in the pathophysiology of Parkinson's disease.

Correct Answer: A

Rationale: Ringer's lactate is the preferred fluid for managing gastrointestinal tract (GIT) losses and burns due to its balanced electrolyte composition. It helps replace lost fluids and electrolytes, making it an ideal choice for resuscitation in such scenarios. Normal saline is commonly used for volume resuscitation but may not be the best choice for these specific conditions. Dextrose is a source of glucose and is not typically used as the primary fluid for GIT losses and burns. Blood transfusion is indicated for specific situations like severe hemorrhage or anemia but is not the primary fluid for GIT losses and burns.

Correct Answer: A

Rationale: Ocrelizumab is the drug of choice for progressive multiple sclerosis due to its efficacy in reducing disease activity and progression in patients with this form of the disease. Dimethyl fumarate, Teriflunomide, and Fluoroquinolones are not typically used as first-line treatments for progressive MS.

Correct Answer: D

Rationale: In a complete spinal injury, there is total loss of motor and sensory functions below the level of the injury. This means that both motor (ability to move) and sensory (ability to feel) functions are affected. It is important to distinguish between complete and incomplete spinal injuries, as complete injuries result in the loss of all functions below the level of injury, while incomplete injuries allow for some preservation of motor or sensory functions.