A child with acute lymphocytic leukemia (ALL) who is receiving chemotherapy via a subclavian IV infusion has an oral temperature of 103 degrees. In assessing the IV site, the nurse determines that there are no signs of infection at the site. Which intervention is the most important for the nurse to implement?

Correct Answer: A

Rationale: Obtaining a specimen for blood cultures is crucial in this situation as it helps identify the source of infection, if present, and guide appropriate treatment. This is important in a child with leukemia receiving chemotherapy to prevent potential complications and ensure timely intervention. Assessing the CBC may provide overall information on the child's condition but may not specifically identify a potential infection. Monitoring the oral temperature is important but obtaining blood cultures takes precedence in this scenario. Administering acetaminophen can help reduce fever but does not address the need to identify a possible infection source.

Correct Answer: A

Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.

Correct Answer: A

Rationale: In infants, laughing readily and turning from back to side are indicative of normal development. These behaviors indicate that the thyroid therapy is effective, as they suggest the baby is achieving age-appropriate milestones. A 5-month-old infant should be able to laugh readily and turn from back to side, showing progress in motor and social development. Choices B, C, and D describe behaviors that are not specific to the expected developmental milestones of a 5-month-old. Strong Moro and tonic neck reflexes, clenched fists, and limited ability to lift the chest when lying on the abdomen are not necessarily indicative of the effectiveness of thyroid therapy for hypothyroidism.

Correct Answer: D

Rationale: Administering the HPV vaccine at this visit is essential to establish immunity against HPV, thus reducing the risk of HPV infection and cervical cancer. Vaccination is a proactive measure to protect the adolescent's health in the future. Choice A is incorrect because although protective barriers can reduce the risk of HPV transmission, the vaccine provides broader protection. Choice B is incorrect as it makes a generalization about adolescent behavior that is not relevant to vaccination. Choice C is incorrect as it suggests that delaying vaccination would not impact coverage, which is inaccurate as earlier vaccination provides broader protection against HPV strains.

Correct Answer: A

Rationale: The ability to laugh readily and turn from back to side indicates the effectiveness of thyroid therapy and normal development in a 5-month-old. These behaviors suggest improved muscle tone and motor skills, which are positive outcomes of thyroid hormone replacement therapy for hypothyroidism. Choices B, C, and D describe developmental milestones that are not specific indicators of the effectiveness of thyroid therapy in treating hypothyroidism in a 5-month-old.