A nurse is caring for an infant who has pertussis. Which of the following precautions should the nurse implement?

Choice A reason:

Breast changes are considered a presumptive sign of pregnancy. This means they are subjective indications reported by the woman and may not be definitive evidence of pregnancy. During pregnancy, the woman's breasts may undergo various changes such as tenderness, enlargement, and darkening of the areolas. These changes are primarily due to hormonal fluctuations and increased blood flow to the breast tissue.

Choice B reason:

Ballottement is not a presumptive sign of pregnancy. Ballottement is a clinical maneuver performed by a healthcare provider to assess the mobility of the fetus in the amniotic fluid. It involves tapping on the cervix and feeling for a rebound from the floating fetus. While it is an indication of pregnancy, it is not considered a presumptive sign as it requires a trained professional to detect.

Choice C reason:

Urinary frequency is a presumptive sign of pregnancy. During pregnancy, the growing uterus can put pressure on the bladder, leading to increased urinary frequency. However, urinary frequency can also be caused by other factors such as urinary tract infections, so it is not a definitive sign of pregnancy.

Choice D reason:

Nausea, specifically morning sickness, is a presumptive sign of pregnancy. Many pregnant women experience nausea and vomiting, especially during the first trimester, due to hormonal changes. However, nausea can also be caused by various other conditions, making it a presumptive rather than a confirmatory sign of pregnancy.

Choice E:

A positive pregnancy test is a probable sign of pregnancy rather than a presumptive sign. Pregnancy tests detect the presence of human chorionic gonadotropin (hCG), a hormone produced during pregnancy. A positive test provides strong evidence of pregnancy, but it is not considered a presumptive sign as it is an objective finding rather than a subjective symptom reported by the woman.

Choice C reason: The infant makes babbling sounds. At 6 months of age, it is typical for infants to engage in babbling sounds. Babbling is a significant milestone in language development during infancy. It involves the repetition of consonant-vowel combinations (e.g., "ba-ba,”. "ma-ma") and is an essential precursor to later language skills, such as forming words and sentences. The nurse should expect the 6-month-old infant to be making these babbling sounds as part of their normal development.

Choice A reason:

The infant has a pincer grasp. A pincer grasp is the ability to pick up small objects using the thumb and index finger. This fine motor skill typically develops around 9 to 12 months of age. At 6 months old, infants have not yet acquired the pincer grasp. Therefore, the nurse should not expect the 6-month-old infant to demonstrate this skill during the assessment.

Choice D reason:

The infant crawls on their hands and knees. Crawling is a gross motor skill that usually emerges between 7 to 10 months of age. While some infants may start crawling earlier or later, it is not a skill that is typically present in a 6-month-old. Therefore, the nurse should not anticipate the 6-month-old infant to be crawling on their hands and knees during the assessment.

Choice B reason:

The infant drops objects with the expectation of someone picking them up. This behavior, known as "object permanence,”. is a cognitive milestone that develops around 8 to 12 months of age. At 6 months old, infants have not yet fully developed this concept. They might drop objects as part of their exploratory behavior, but they do not yet understand the expectation of someone picking them up. Therefore, the nurse should not expect the 6- month-old infant to exhibit this specific behavior during the assessment.