The student nurse learns that the hormone necessary for milk production is
Estrogen.
Prolactin.
Progesterone.
Lactogen.
The Correct Answer is B
The correct answer is choice B. Prolactin.
Choice A reason:
Estrogen. Estrogen is a hormone that plays a role in the development of the mammary glands and the ductal system during pregnancy. However, estrogen does not directly produce milk.
In fact, high levels of estrogen during pregnancy inhibit milk secretion by blocking prolactin. Therefore, estrogen is not the hormone necessary for milk production. • Choice B reason:
Prolactin. Prolactin is the hormone responsible for the production of breast milk. Prolactin is secreted by the pituitary gland in response to suckling or nipple stimulation. Prolactin levels rise during pregnancy and peak after delivery, when the sudden drop in estrogen and progesterone allows prolactin to take over and initiate lactation. Therefore, prolactin is the hormone necessary for milk production. • Choice C reason:
Progesterone. Progesterone is a hormone that also contributes to the development of the mammary glands and the alveoli during pregnancy. However, like estrogen, progesterone does not directly produce milk. Progesterone also inhibits milk secretion by blocking prolactin during pregnancy. Therefore, progesterone is not the hormone necessary for milk production. •
Choice D reason:
Lactogen. Lactogen is not a hormone, but a general term for any substance that stimulates lactation. There are different types of lactogens, such as human placental lactogen (hPL), which is produced by the placenta during pregnancy and has some lactogenic effects on the mammary glands. However, hPL is not the main hormone responsible for milk production. That role belongs to prolactin. Therefore, lactogen is not the hormone necessary for milk production.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Rupture of the membranes is not a reliable sign of true labor, as it can occur before or during labor, or be artificially induced by the provider. • Choice B reason:
Patterns of contractions can vary depending on the stage and phase of labor, and can also be influenced by factors such as hydration, activity, and medication. Contractions alone do not indicate true labor unless they are accompanied by cervical changes. • Choice C reason:
Changes in the cervix, such as effacement (thinning) and dilation (opening), are the most accurate indication of true labor. Cervical changes are caused by the pressure of the presenting part and the force of the contractions. The nurse should assess the cervix periodically to determine the progress of labor. • Choice D reason:
The station of the presenting part refers to the relationship of the fetal head to the maternal ischial spines, which are bony landmarks in the pelvis. The station can range from -5 (high) to +5 (low), with 0 being at the level of the ischial spines. Station does not indicate true labor, as it can vary depending on the parity, pelvic shape, and fetal position of the client.
Correct Answer is C
Explanation
Choice A reason:
Acrocyanosis (choice A) is a common and relatively normal finding in newborns, especially in the first few days of life. It refers to the bluish discoloration of the hands and feet due to peripheral vasoconstriction. Acrocyanosis alone does not necessarily indicate significant difficulty with oxygenation and is usually a transient and benign condition.
Choice B reason:
A respiratory rate of 54 breaths/minute (choice B) is within the normal range for a newborn. The normal respiratory rate for a newborn can range from 30 to 60 breaths per minute. While an abnormal respiratory rate outside this range may be a concern, a rate of 54 breaths/minute is not indicative of significant oxygenation difficulty by itself.
Choice C reason:
Nasal flaring in a newborn is a concerning sign that suggests the baby is experiencing difficulty with oxygenation. When a newborn is having trouble getting enough oxygen, they may instinctively open their nostrils wider (nasal flaring) to increase the airflow into the nose and improve oxygen intake. This is a compensatory mechanism to overcome respiratory distress and is often seen in newborns with respiratory problems. Nasal flaring is an important clinical sign that indicates the baby may be struggling to breathe adequately and requires further evaluation and intervention by the healthcare team.
Choice D reason:
Abdominal breathing (choice D) is a normal breathing pattern in newborns. Newborns predominantly use their diaphragm to breathe, which results in abdominal movements during respiration. This is a normal and expected finding in healthy newborns and does not necessarily suggest oxygenation problems.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.