Correct Answer: B

Rationale: A flat anterior fontanel indicates improved hydration in infants, as dehydration typically causes sunken fontanels.

Correct Answer: C

Rationale: Montelukast is a leukotriene receptor antagonist that helps reduce swelling and mucus production in the airways, making it useful for long-term asthma management.

Correct Answer: B

Rationale: The correct answer is B: Wear a dosimeter badge. When caring for a client with a sealed radiation implant, the nurse should wear a dosimeter badge to monitor radiation exposure. This badge helps measure the amount of radiation the nurse is exposed to during care. Choice A is incorrect because removing dirty linens after double-bagging is not directly related to managing radiation exposure. Choice C is incorrect as there is no specific time limit on visitors mentioned in the context of a sealed radiation implant. Choice D is incorrect as there is no evidence supporting the need for family members to stay a specific distance away from the client.

Correct Answer: C

Rationale: The correct instruction for a patient starting radiation therapy for esophageal cancer is to wear clothing over the area of radiation treatment. This helps to prevent irritation and protect the skin. Removing dye markings after each treatment (choice A) is unnecessary and not typically part of the patient's self-care. Applying a warm compress (choice B) can exacerbate skin irritation caused by radiation. Using a washcloth to bathe the treatment area (choice D) can potentially irritate the skin further, making it important to avoid.

Correct Answer: A

Rationale: Using Naegele's rule, to calculate the expected delivery date, you add one year, subtract three months, and add seven days to the first day of the last menstrual period. If the last menstrual period was in October, adding one year gives October of the following year. Subtracting three months gives July, and adding seven days gives the expected delivery date of July 11th. Therefore, the correct answer is 711. Choice B (1011) is incorrect as it doesn't follow Naegele's rule calculations. Choices C (411) and D (1211) are also incorrect as they do not align with the correct application of Naegele's rule.