Which fluid is used in the management of gastrointestinal tract (GIT) loss and burns?

Correct Answer: A

Rationale: The correct answer is A: Ringer's lactate. Ringer's lactate is used in managing GIT loss and burns due to its balanced electrolyte composition, which closely resembles the electrolyte content of plasma. It helps replace lost fluids and maintain electrolyte balance. Normal saline (B) lacks bicarbonate and may lead to metabolic acidosis. Dextrose (C) provides energy but does not address fluid and electrolyte losses. Blood (D) is not typically used for fluid resuscitation in these cases unless there is severe hemorrhage.

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: Step 1: Bacterial meningitis is commonly caused by Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Step 2: Staphylococcus aureus is not a common causative agent of bacterial meningitis. Step 3: Staphylococcus aureus is more commonly associated with skin and soft tissue infections. Summary: Choices A, B, and D are common causative agents of bacterial meningitis, while choice C, Staphylococcus aureus, is not commonly associated with this infection.

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.