What is the term for creating a surgical airway in the front of the neck (cervical region) to remove copious secretions?

Correct Answer: B

Rationale: The correct answer is B: Tracheostomy. Tracheostomy involves creating a surgical airway in the front of the neck to remove copious secretions. This procedure allows direct access to the trachea to facilitate breathing and clear secretions. Bronchoscopy (choice A) involves visualizing the airways with a scope, not creating a surgical airway. Thoracentesis (choice C) is a procedure to remove fluid from the chest cavity, not the airway. Underwater seal drainage (choice D) is used for managing chest tube drainage, not creating a surgical airway.

Correct Answer: C

Rationale: The correct answer is C: Paraplegia. Paraplegia refers to the paralysis of the lower half of the body, including both legs and often the trunk and pelvic organs. This term specifically indicates paralysis below the waist. Hemiplegia (A) refers to paralysis on one side of the body, not the trunk and legs. Tetraplegia (B) is paralysis of all four limbs and the trunk, not specifically the trunk, legs, and pelvic organs. Hemiparesis (D) is weakness on one side of the body, not a complete paralysis of the trunk, legs, and pelvic organs.

Correct Answer: A

Rationale: The correct answer is A: Ocrelizumab. It is the drug of choice for progressive multiple sclerosis due to its proven efficacy in reducing disease progression and disability in clinical trials. Ocrelizumab specifically targets B cells, which play a key role in the pathogenesis of multiple sclerosis. Dimethyl fumarate (B) and Teriflunomide (C) are more commonly used for relapsing-remitting multiple sclerosis rather than progressive forms. Fluoroquinolones (D) are antibiotics and have no role in the treatment of multiple sclerosis.

Correct Answer: C

Rationale: The correct answer is C: Dopamine. Parkinson's disease is primarily caused by the loss of dopamine-producing neurons in the brain. Dopamine is crucial for controlling movement, mood, and cognition. Serotonin (A) is not directly related to Parkinson's. Adrenaline (B) is involved in the fight-or-flight response, not Parkinson's. GABA (D) is an inhibitory neurotransmitter, not typically associated with Parkinson's disease.

Correct Answer: B

Rationale: The correct answer is B: Brudzinski sign. This sign is used to diagnose meningitis because it involves the involuntary flexion of the hips and knees when the neck is flexed. This reflex is indicative of meningeal irritation and is a classic sign of meningitis. A: Homan's sign is used to assess for deep vein thrombosis, not meningitis. C: Startle reflex is a normal response to a sudden unexpected stimulus, not specific to meningitis. D: Anterior drawer test is used to assess for ligamentous instability in the knee, not related to meningitis.