When palpating the child's cervical lymph nodes, the nurse notes that they are tender, enlarged, and warm. The best explanation for this is:.

The correct answer is choice B. Administer supplemental oxygen before and after suctioning.

Choice A rationale:

Expect symptoms of respiratory distress when suctioning. While respiratory distress can occur during and after suctioning, it is not the main nursing consideration. The primary goal is to minimize any potential complications and ensure the child's safety during the procedure, which can be achieved by following appropriate guidelines.

Choice B rationale:

Administer supplemental oxygen before and after suctioning. Correct Answer. Administering supplemental oxygen before and after suctioning is crucial to maintain adequate oxygenation during and after the procedure. Suctioning can temporarily decrease oxygen levels and cause desaturation, especially in a child who has undergone heart surgery. Providing supplemental oxygen helps prevent hypoxia and supports respiratory function.

Choice C rationale:

Perform suctioning at least every hour. Frequent suctioning at least every hour is not a standard nursing practice, especially for a child who has had heart surgery. Suctioning should only be performed as needed based on the child's clinical condition, and excessive suctioning can irritate the airway and lead to complications.

Choice D rationale:

Suction for no longer than 30 seconds at a time. While limiting the duration of suctioning is important to prevent hypoxia and trauma to the airway, the specific duration of 30 seconds is not a universal rule. Suctioning should be performed for the shortest effective duration to minimize the risk of complications, but the optimal time can vary based on the child's condition and the type of suctioning being used.

The correct answer is Choice D: Refer children with sore throats for throat cultures.

Choice A rationale:

Recommending salicylates instead of acetaminophen for minor discomforts is not relevant to the prevention of rheumatic fever. Rheumatic fever is primarily associated with untreated streptococcal infections, particularly streptococcal pharyngitis (strep throat), which can lead to complications such as rheumatic fever if left untreated. The choice of pain relievers like salicylates or acetaminophen doesn't play a significant role in preventing rheumatic fever.

Choice B rationale:

Encouraging routine cholesterol screenings is not relevant to the prevention of rheumatic fever. Rheumatic fever is an immune-mediated inflammatory response to certain strains of Streptococcus bacteria, particularly Streptococcus pyogenes. Cholesterol screenings are more related to assessing cardiovascular risk and are not directly linked to preventing rheumatic fever.

Choice C rationale:

Conducting routine blood pressure screenings is not directly related to the prevention of rheumatic fever. Blood pressure screenings are important for identifying hypertension and other cardiovascular risk factors, but they do not have a direct impact on preventing rheumatic fever, which is primarily a complication of untreated streptococcal infections.

Choice D rationale:

Refer children with sore throats for throat cultures. This is the correct choice. Rheumatic fever often develops as a result of untreated streptococcal pharyngitis (strep throat). Throat cultures are crucial for diagnosing streptococcal infections and determining the appropriate course of treatment with antibiotics. By identifying and treating streptococcal infections promptly, the risk of developing rheumatic fever can be significantly reduced.