Which of these is a characteristic of a preterm infant?

Choice A reason:

This is a normal WBC for a newborn. According to MedlinePlus, the normal amount of white blood cells (WBCs) found in the bloodstream of a newborn infant is between 4,500 and 10,000 per microliter of blood. The reference ranges for WBC count established by Mayo Medical Laboratories for infants from birth to 2 years are as follows:.

• Birth: 9.0 to 30.0 x 10 9 /L.

• 1 to 7 days: 9.4 to 34.0 x 10 9 /L.

• 8 to 14 days: 5.0 to 21.0 x 10 9 /L.

• 15 days to 1 month: 5.0 to 20.0 x 10 9 /L.

• 2 to 5 months: 5.0 to 15.0 x 10 9 /L. Therefore, a newborn's WBC of 15,000 is within the normal range and does not indicate any problem.

Choice B reason:

You must call the doctor. This is not a correct answer because there is no need to call the doctor for a normal WBC in a newborn. Calling the doctor unnecessarily may cause anxiety and a waste of time and resources.

Choice C reason:

This indicates a severe infection. This is not a correct answer because a WBC of 15,000 does not necessarily indicate a severe infection in a newborn. A high WBC, also called leukocytosis, may be related to infection, but it can also be caused by other factors such as stress, inflammation, trauma, medication, or blood disorders. Moreover, the type and severity of infection can be better assessed by looking at the differential count of the different types of white blood cells (neutrophils, eosinophils, basophils, monocytes, and lymphocytes) and other signs and symptoms.

Choice D reason:

This is a lab error. This is not a correct answer because a WBC of 15,000 is not likely to be a lab error in a newborn. Lab errors can occur due to improper collection, handling, or analysis of blood samples, but they are rare and usually detected by quality control measures. A WBC of 15,000 is within the normal range for a newborn and does not require repeating the test unless there is a strong suspicion of an error or an inconsistency with other results or clinical findings.

Choice A reason:

Attachment phase is not one of Rubin's phases of role attachment. Rubin's theory of maternal role adaptation describes three stages that the mother goes through during the postpartum period: taking in, taking hold and letting go.

Choice B reason:

Letting go phase is the last stage of Rubin's theory of role attachment. It occurs when the mother accepts her new role and gives up her old roles. She also comes to terms with the reality of the birthing experience and the characteristics of her baby.

Choice C reason:

Taking hold phase is the second stage of Rubin's theory of role attachment. It occurs when the mother becomes interested in caring for the infant and learning about her baby and herself. She may be critical about her care-giving abilities and need positive reinforcement.

Choice D reason:

Taking in phase is the first stage of Rubin's theory of role attachment. It occurs right after the birth of the child, when the mother is passive and focused on her own needs, especially sleeping and eating. She may have limited interactions with her infant and prefer to talk about her experiences during labor, birth, and pregnancy. This matches the description of the new mother in the question, so this is the correct answer.