Correct Answer: A

Rationale: Conducting a survey to assess dietary habits and physical activity levels should be the initial step in developing a community outreach program to address childhood obesity. By gathering data through a survey, the healthcare provider can identify specific needs, preferences, and challenges within the community. This information is crucial for designing tailored interventions that are more likely to be effective. Developing educational materials (Choice B) can come after understanding the community's needs through the survey. Partnering with local schools (Choice C) and organizing community events (Choice D) are important strategies but should be planned based on the data obtained from the survey to ensure relevance and impact.

Correct Answer: C

Rationale: Fever can indicate a severe infection, such as pyelonephritis, in a client with a urinary tract infection and requires immediate intervention. Hematuria and dysuria are common symptoms of a urinary tract infection but may not always require immediate intervention unless severe. Urinary frequency is also a common symptom and does not indicate the severity of the infection as fever does.

Correct Answer: D

Rationale: Decreased deep tendon reflexes are a critical finding in hypokalemia that indicates severe potassium deficiency affecting neuromuscular function. Immediate intervention is necessary to prevent life-threatening complications such as respiratory failure or cardiac arrhythmias. Muscle weakness, irregular heart rate, and increased urinary output are also associated with hypokalemia but do not pose the same level of urgency as decreased deep tendon reflexes.

Correct Answer: C

Rationale: The most important information for the nurse to obtain before implementing a community health program targeting teenage smoking is the prevalence and patterns of smoking among teenagers. Understanding this data is crucial to tailor the program to the specific needs and behaviors of the target group, ensuring it addresses the root causes effectively. Choices A, B, and D are unrelated to the specific needs of the target group and do not provide essential information for designing an effective smoking cessation program for teenagers.

Correct Answer: A

Rationale: Recognizing signs of infant dehydration is crucial for ensuring the health and well-being of infants. Dehydration can be life-threatening for infants if not addressed promptly. Proper diaper changing techniques, while important for hygiene, can be learned incrementally. The immunization schedule and breastfeeding positions are also essential topics, but identifying signs of dehydration takes precedence as it requires immediate attention to prevent serious complications.