The nurse is assessing the dental status of an 18-month-old child. How many teeth should the nurse expect to examine?

Correct Answer: C

Rationale: An 18-month-old child should have approximately 12 teeth. In general, children begin dentition around 6 months of age. During the first 2 years of life, a quick guide to the number of teeth a child should have is as follows: Subtract the number 6 from the number of months in the age of the child. In this example, the child is 18 months old, so the formula is 18 - 6 = 12. The correct answer is 12. Choice A (6) is incorrect as it does not consider the child's age. Choices B (8) and D (16) are incorrect as they do not align with the dental development timeline and the specific age of the child in question.

Correct Answer: C

Rationale: The correct order of tasks when performing an abdominal assessment is to first inspect the abdomen visually, then auscultate to assess bowel sounds without altering them, followed by percussing to assess the presence of tympany or dullness, and finally palpating to feel for any tenderness, masses, or organ enlargement. Placing palpation or percussion before auscultation, as in choices A, B, and D, can affect the bowel sounds and examination findings, making them incorrect sequences.

Correct Answer: A

Rationale: The correct answer is to change the intravenous tubing on total parenteral nutrition solutions every 24 hours. This frequency is necessary due to the high risk of bacterial growth associated with TPN solutions. Changing the tubing every 24 hours helps prevent contamination and bloodstream infections. Choices B, C, and D are incorrect because waiting longer intervals increases the risk of introducing harmful bacteria into the patient's system, leading to potentially severe complications.

Correct Answer: D

Rationale: The correct answer is the vaginal sponge. The vaginal sponge, when used with foam or jelly contraception, acts as a barrier method that can reduce the transmission of HIV and other STDs, in addition to preventing pregnancy. In contrast, IUDs, Norplant, and oral contraceptives are effective in preventing pregnancy but do not provide protection against the transmission of HIV and STDs. IUDs prevent pregnancy by affecting sperm movement and survival, Norplant releases hormones to prevent ovulation, and oral contraceptives work by inhibiting ovulation. However, these methods do not create a physical barrier against HIV and STD transmission. It is important to counsel clients using methods like IUDs, Norplant, and oral contraceptives to also use chemical or barrier contraceptives to lower the risk of HIV or STD transmission.

Correct Answer: C

Rationale: Parents are the primary force in sex education in a child's life. Parents play a central role in shaping a child's understanding of sex from an early age. They provide continuous guidance, values, and information about sex and relationships. While the school nurse is involved in formal sex education and counseling within the school setting, parents have the most direct and significant impact on a child's sex education. Peers become more influential during adolescence, but their information may not always be accurate or appropriate. The media also exert significant influence on children's perceptions of sex through various forms of entertainment like movies, TV shows, and video games, but parents remain the primary educators on this subject.