After an emergency birth, the nurse encourages the woman to breastfeed her newborn.
The primary purpose of this activity is to:.

Choice A rationale:
Bronchoscopy is not the essential test for diagnosing cystic fibrosis. Bronchoscopy is a procedure that allows the healthcare provider to visualize the airways and lungs but is not the primary test for cystic fibrosis diagnosis. Cystic fibrosis is primarily diagnosed through genetic testing and sweat chloride testing.
Choice B rationale:
Serum calcium levels are not specific to cystic fibrosis diagnosis. Serum calcium levels are typically used to assess calcium balance in the body and are not directly related to cystic fibrosis diagnosis.
Choice C rationale:
Urine creatinine levels are not specific to cystic fibrosis diagnosis. Urine creatinine levels are often used to assess kidney function and muscle breakdown but are not diagnostic for cystic fibrosis.
Choice D rationale:
Sweat chloride test is essential in establishing the diagnosis of cystic fibrosis. Cystic fibrosis is characterized by the abnormal transport of chloride across cell membranes, leading to salty sweat. The sweat chloride test measures the amount of chloride in the sweat and is a key diagnostic test for cystic fibrosis. Values above a certain threshold (typically 60 mmol/L) are suggestive of cystic fibrosis.

Choice A rationale:

Facilitate maternal-newborn interaction. Facilitating maternal-newborn interaction is an important aspect of breastfeeding, but it is not the primary purpose of encouraging breastfeeding immediately after an emergency birth. The primary purpose is to initiate the lactation cycle, allowing the newborn to receive essential colostrum, the first milk rich in antibodies and nutrients, which aids in the development of the newborn's immune system.

Choice B rationale:

Stimulate the uterus to contract. While breastfeeding can stimulate uterine contractions due to oxytocin release, the primary purpose of encouraging breastfeeding in this context is not to contract the uterus but to initiate the lactation cycle for the newborn's benefit.

Choice C rationale:

Prevent neonatal hypoglycemia. Breastfeeding can help prevent neonatal hypoglycemia by providing the newborn with a constant supply of nutrients, but the primary purpose immediately after an emergency birth is to initiate the lactation cycle and provide colostrum, not solely to prevent hypoglycemia.

Choice D rationale:

Initiate the lactation cycle. Initiating the lactation cycle is the correct answer because breastfeeding immediately after birth helps the woman's body start producing milk and provides the newborn with colostrum, essential for their health and development. Colostrum is rich in antibodies and nutrients, offering vital protection and nourishment to the newborn.