Correct Answer: A

Rationale: The correct way to position a client's neck for palpation of the thyroid is to have it flexed toward the side being examined. This positioning helps to better access and palpate the thyroid gland. Option B, hyperextending the neck directly backward, is incorrect as it can make palpation more difficult and uncomfortable for the client. Option C, flexing the neck away from the side being examined, is also incorrect as it may obscure the thyroid gland, making it harder to palpate. Option D, flexing the neck directly forward, is not ideal for thyroid palpation as it does not provide the best access to the gland.

Correct Answer: D

Rationale: An 8- to 9-month-old infant can string vowels and consonants together. The first words, such as 'Mama,' 'Daddy,' 'bye-bye,' and 'baby,' begin to have meaning. A 1- to 3-month-old infant produces cooing sounds. Babbling is common in a 3- to 4-month-old. Single-consonant babbling occurs between 6 and 8 months of age. Therefore, the milestone of the infant saying 'Mama' is the most appropriate for a 9-month-old, indicating early language development. The other choices are developmentally inaccurate for a 9-month-old infant.

Correct Answer: B

Rationale: The correct answer is B: secondary prevention. The client is currently receiving secondary prevention care. Secondary prevention focuses on early detection of disease, prompt intervention, and health maintenance for clients experiencing health problems. In this case, the electrolyte imbalance is a health problem that requires treatment to prevent further complications. Choices A, C, and D are incorrect because primary prevention is focused on health promotion and specific protections against illness before it occurs, tertiary prevention is aimed at helping rehabilitate clients after the illness is diagnosed and treated, and health promotion is a broader concept that includes activities aimed at improving overall health and well-being rather than targeting a specific health problem like an electrolyte imbalance.

Correct Answer: B

Rationale: The most appropriate toys for 2- and 3-year-old children in a day-care setting are blocks and push-pull toys. Toddlers enjoy objects of different textures like clay, sand, finger paints, and bubbles, as well as push-pull toys, large balls, and sand and water play. They also like activities such as blocks, painting, coloring with large crayons, large puzzles, and playing with trucks or dolls. Finger paints and card games may be more suitable for older children. Videos and cutting-and-pasting toys are generally more appropriate for preschoolers. Blocks and push-pull toys are beneficial for young children as they help in developing fine motor skills, hand-eye coordination, spatial awareness, and creativity. These toys also encourage imaginative play and problem-solving, making them ideal choices for toddlers.

Correct Answer: C

Rationale: The main goal of Healthy People 2010 is the elimination of health disparities among the U.S. population. This initiative outlines specific objectives to improve the overall health of Americans by addressing disparities in health outcomes. Choice A, reduction of health care costs, is not the primary goal of Healthy People 2010, although it may be a beneficial outcome. Choice C, investigation of substance abuse, is not a main goal of Healthy People 2010; while substance abuse may be a factor in health disparities, the primary focus is on broader disparities. Choice D, determination of an acceptable morbidity rate, is not the main focus of Healthy People 2010; instead, it aims to address health disparities in different population groups.