The nurse is taking a health history on an adolescent. Which best describes how the chief complaint should be determined?

The correct answer is choice C: Oral rehydration solution (ORS).

Choice A rationale:

Clear liquids, 1 to 2 ounces at a time, might not be sufficient to adequately rehydrate a child with severe dehydration. Clear liquids lack the necessary electrolytes and glucose content to effectively combat dehydration and replace lost fluids.

Choice B rationale:

Administration of antidiarrheal medication is not the initial step in managing severe dehydration caused by acute diarrhea and vomiting. Antidiarrheal medications can slow down the gastrointestinal motility, which may exacerbate the problem by delaying the elimination of the causative agent and prolonging the dehydration.

Choice C rationale:

Oral rehydration solution (ORS) is the recommended initial intervention for managing severe dehydration caused by acute diarrhea and vomiting. ORS contains the appropriate balance of electrolytes (sodium, potassium, chloride) and glucose to replace lost fluids and electrolytes, thereby helping to rehydrate the child effectively. It is absorbed even when digestion is impaired due to the illness.

Choice D rationale:

Intravenous fluids might be necessary if the child's condition is very severe and oral intake cannot be maintained. However, it's not the first-line intervention. Oral rehydration is preferred whenever feasible because it is less invasive and can be administered even in mild to moderate dehydration cases.

The correct answer is choice B. Cardiac valve damage.

Choice A rationale:

Pulmonary hypertension is not a common complication of rheumatic fever. Rheumatic fever primarily affects the heart, joints, skin, and brain, and pulmonary hypertension is not a typical manifestation of this condition.

Choice B rationale:

Cardiac valve damage is a common and serious complication of rheumatic fever. Rheumatic fever is caused by an autoimmune reaction to untreated streptococcal infections, particularly Streptococcus pyogenes. The immune response targets not only the streptococcal bacteria but also the body's own tissues, especially heart valves. This can lead to inflammation of the heart valves, a condition known as rheumatic heart disease. Over time, repeated bouts of rheumatic fever can result in significant damage to the heart valves, leading to valve insufficiency or stenosis. This can ultimately cause heart failure and other cardiovascular complications.

Choice C rationale:

Seizures are not a common complication of rheumatic fever. Rheumatic fever primarily affects the heart and other body systems, but it does not typically lead to seizures.

Choice D rationale:

Cardiac arrhythmias are possible complications of rheumatic fever, but they are not as common or significant as cardiac valve damage. The inflammation and scarring caused by rheumatic fever can disrupt the electrical pathways of the heart, potentially leading to arrhythmias. However, the more prevalent and severe consequence of rheumatic fever is the damage to the heart valves.