Correct Answer: D

Rationale: Before administering the hepatitis B vaccine to a newborn infant, the nurse must obtain parental consent. Hepatitis B vaccine is typically given at birth, 1 month, and 6 months of age. Checking the infant for jaundice, checking the temperature, and requesting a hepatitis blood screen are unnecessary in this context. Parental consent is crucial for any medical intervention involving minors.

Correct Answer: C

Rationale: The most common indication for amniocentesis in the third trimester is the determination of fetal lung maturity. This assessment is essential to evaluate the fetus's readiness for extrauterine life. Checking for alpha-fetoprotein (AFP) in the amniotic fluid is more commonly associated with midtrimester amniocentesis to identify chromosomal abnormalities. Assessing for intrauterine infection is not a primary reason for amniocentesis in the third trimester. While checking fetal cells for chromosomal abnormalities is a common indication for midtrimester amniocentesis, it is not the most common indication in the third trimester.

Correct Answer: A

Rationale: Sex role identification begins during infancy as infants can identify body parts by the end of the first year. Preschoolers often engage in masturbation and sex play. School-age children continue to develop awareness of their sexual identity, including behaviors like hugging and kissing. Early adolescence sees further development influenced by sexual maturation and experimentation with sex roles. Therefore, the correct statement is that sex role identification begins in infancy. Choices B, C, and D are incorrect as they misrepresent the timeline of the development of sex role identification in children.

Correct Answer: C

Rationale: The correct answer is 'Devices that apply pressure alone are available over the counter.' Acupressure over the Neiguan acupuncture point can be used as a complementary alternative therapy to relieve nausea during pregnancy. It can be performed with devices that apply pressure alone, which are available over the counter. Acupressure devices that apply electrical impulses over this point require a prescription. It is not safe to try any type of complementary alternative therapy during pregnancy, as some may be harmful to the mother and fetus. Therefore, the nurse should instruct the client about the availability of over-the-counter pressure devices for acupressure, which are generally safe to use.

Correct Answer: D

Rationale: Amniotic fluid should be clear and may include bits of vernix, the creamy white fetal skin lubricant. Therefore, the nurse would most appropriately document the findings. Checking the client's temperature, reporting the findings to the nurse-midwife, and obtaining a sample of the amniotic fluid for laboratory analysis are not necessary in this situation. Cloudy, yellow, or foul-smelling amniotic fluid suggests infection, while green fluid indicates that the fetus passed meconium before birth. If abnormalities are noted, the nurse should notify the nurse-midwife.