The nurse discussing fetal development describes the hormone responsible for suppressing the maternal immunological response to the fetus, thereby facilitating physiological acceptance of the pregnancy. Which hormone is the nurse describing?
A.
Estrogen
B.
Human chorionic gonadotropin
C.
Human placental lactogen
D.
Progesterone
ANS: D
Progesterone helps to suppress maternal immunological responses to fetal antigens, thereby preventing maternal rejection of the fetus. Estrogen enhances myometrial activity, promotes myometrial vasodilation, increases maternal respiratory center sensitivity to carbon dioxide, softens fibers in the cervical collagen tissue, increases the pituitary secretion of prolactin, increases serum-binding proteins and fibrinogen, decreases plasma proteins, and increases sensitivity of the uterus to progesterone in late pregnancy. Human placental lactogen regulates glucose availability for the fetus and promotes fetal growth by altering maternal protein, carbohydrate, and fat metabolism. Human chorionic gonadotropin maintains the corpus luteum during early pregnancy until the placenta has sufficiently developed to produce adequate amounts of progesterone.
You might also like to view...
A parent confides in the school nurse that her 8-year-old twins argue and bicker constantly. What is the best response by the nurse?
a. Express alarm at the constant aggression. b. Voice concern and investigate referral for counseling. c. Inquire about what punitive action the parents have taken to stop it. d. Offer reassurance that such behavior is normal for 8-year-olds.
The illustration below identifies which type of chart?
a. Productivity b. Organizational c. Resource d. Staffing
An older Chinese client experienced a stroke that left him with right-sided weakness and now refuses to participate in physical therapy until his son is present. The nurse should initially inter-pret this behavior as:
1. A sign of post-stroke depression 2. An illustration of cultural collectivism 3. A response to the therapy-induced pain 4. An example of a healthy father-son relationship
A client receives his first dose of fluphenazine. The next day, he comes in from sitting outside, and the nurse observes that he is confused. His temperature is 103°F
His pulse rate is 116 beats per minute, and his respirations are 34 breaths per minute. His blood pressure is 100/50 mm Hg. What does the nurse suspect? A) Anaphylaxis B) Serotonin syndrome C) Neuroleptic malignant syndrome D) Parkinsonism