Correct Answer: D

Rationale: The correct answer is D: explain that the client should stay home for the next few days. Viral conjunctivitis is highly contagious, and the client should avoid close contact with others until it resolves. Returning to work while still contagious can lead to the spread of the infection to coworkers and customers. Choice A is incorrect because wearing a face mask may not provide sufficient protection against spreading the virus in a close work environment. Choice B is irrelevant to the situation as the focus should be on the client's health and preventing the spread of the infection. Choice C is also unrelated to the management of viral conjunctivitis and does not address the contagious nature of the condition.

Correct Answer: D

Rationale: The correct answer is D. Chest pain radiating to the left arm can be a sign of myocardial infarction (heart attack) and requires immediate intervention. This symptom is known as a classic presentation of a heart attack and warrants urgent medical attention to prevent further cardiac damage. Choices A, B, and C are not directly indicative of an acute cardiac event and may not require immediate intervention in this scenario. While heart rate, blood pressure, and respiratory rate are important vital signs to monitor, they do not specifically indicate the urgency associated with chest pain radiating to the left arm in a patient with a history of coronary artery disease.

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: C

Rationale: The correct answer is C. Sudden severe abdominal pain is a key clinical manifestation of a perforated ulcer. The sudden onset of severe pain is concerning for a perforation in the ulcer, which can lead to peritonitis if not promptly addressed. Choices A, B, and D are incorrect because hyperactive bowel sounds, a soft and nondistended abdomen, and a blood pressure of 110/70 mm Hg are not specific indicators of a perforated ulcer. Hyperactive bowel sounds may suggest increased gastrointestinal motility, a soft abdomen may not necessarily indicate a perforation, and a blood pressure of 110/70 mm Hg is within normal limits and does not directly relate to a perforated ulcer.

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.