A mother brings her preteen daughter to the clinic for her first female examination. During the health assessment, the nurse should implement which technique to determine if the client has reached the age of menarche?

Choice A reason: Assessing for presence of a supernumerary breast nipple is not a relevant technique to determine if the client has reached the age of menarche. A supernumerary breast nipple is an extra nipple that develops along the embryonic milk line, usually in the chest or abdomen. It is a congenital anomaly that affects about 1% to 5% of the population, and it has no relation to the onset of menstruation.

Choice B reason: Using the Tanner staging to determine sexual maturity is a valid technique to determine if the client has reached the age of menarche. The Tanner staging is a scale that assesses the development of secondary sexual characteristics, such as breast growth, pubic hair growth, and genital development, in relation to the chronological age of the child. The Tanner staging can help estimate the stage of puberty and the likelihood of menarche, which usually occurs around Tanner stage 3 or 4 in girls.

Choice C reason: Palpating for evidence of temporary gynecomastia is not an appropriate technique to determine if the client has reached the age of menarche. Gynecomastia is the enlargement of breast tissue in males, due to hormonal imbalance, medication side effects, or other causes. It is a common condition that affects up to 70% of adolescent boys, and it usually resolves spontaneously within a few months or years. Gynecomastia has no relevance to the onset of menstruation in girls.

Choice D reason: Calculating approximate age menstruation should occur is not a reliable technique to determine if the client has reached the age of menarche. The age of menarche varies widely among individuals, depending on genetic, environmental, nutritional, and psychosocial factors. The average age of menarche in the United States is about 12.5 years, but it can range from 8 to 16 years. Therefore, calculating the approximate age of menarche based on averages or norms may not reflect the actual situation of the client.

Choice A reason: Positioning the infant on the stomach occasionally when awake and active is the best response that the nurse can give to the mother. This is because it can help prevent and correct the flat head syndrome, also known as plagiocephaly, by taking pressure off the back of the head and allowing the skull to reshape naturally. It can also promote the infant's motor development and strengthen the neck and shoulder muscles. However, the nurse should also remind the mother to always place the infant on the back when sleeping, as this is the safest position to reduce the risk of sudden infant death syndrome (SIDS) .

Choice B reason: Turning the infant on the left side braced against the crib when sleeping is not a good response that the nurse can give to the mother. This is because it can increase the risk of SIDS, as the infant may roll over to the stomach or suffocate from the bedding or the crib. It can also worsen the flat head syndrome by creating another flat spot on the left side of the head.

Choice C reason: Placing a small pillow under the infant's head while lying on the back is not a good response that the nurse can give to the mother. This is because it can increase the risk of SIDS, as the pillow may cover the infant's face or cause the infant to overheat. It can also interfere with the natural reshaping of the skull and cause neck strain.

Choice D reason: Propping the infant in a sitting position with a cushion when not sleeping is not a good response that the nurse can give to the mother. This is because it can put too much pressure on the spine and the pelvis, which are still developing in the infant. It can also limit the infant's movement and exploration, which are important for learning and development.