A primipara at 20-weeks gestation is scheduled for an ultrasound. In preparing the client for the procedure, the nurse should explain that the primary reason for conducting this diagnostic study is to obtain which information?
Chromosomal abnormalities
Sex and size of the infant
Lecithin-sphingomyelin ratio
Fetal growth and gestational age.
The Correct Answer is D
A. Chromosomal abnormalities:
While an ultrasound can sometimes identify structural abnormalities, it's not the primary tool for detecting chromosomal abnormalities. Genetic testing or procedures like amniocentesis are more specific for this purpose.
B. Sex and size of the infant:
An ultrasound is indeed used to determine the sex of the baby and assess its size and growth.
C. Lecithin-sphingomyelin ratio:
The lecithin-sphingomyelin ratio is typically assessed in tests related to fetal lung maturity, which is not the primary purpose of a routine ultrasound.
D. Fetal growth and gestational age:
This is one of the primary purposes of a routine ultrasound during pregnancy. It helps evaluate the baby's growth and ensures it aligns with the expected gestational age.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Cries vigorously when stimulated:
Explanation: Vigorous crying is a positive sign in a newborn. It indicates that the baby is responsive, breathing effectively, and is capable of establishing the necessary air exchange.
B. A positive Babinski reflex:
Explanation: The Babinski reflex is a normal reflex in infants where the toes spread out when the sole of the foot is stimulated. While it is a normal reflex in newborns, it might not necessarily indicate the immediate transition to extrauterine life.
C. Heart rate of 220 beats/minute:
Explanation: A heart rate of 220 beats per minute in a newborn is higher than the normal range. It could be a sign of tachycardia, and this finding might require further evaluation by healthcare providers.
D. Flexion of all four extremities:
Explanation: Flexion of extremities is a normal response in a newborn, but it might not specifically indicate successful transition. It's a common response seen in healthy newborns.
Correct Answer is C
Explanation
Calcium:
Calcium is essential for the development of fetal bones and teeth, but it is not specifically linked to preventing neural tube defects like anencephaly.
Iron:
Iron is crucial for preventing anemia in pregnancy, supporting increased blood volume. However, it is not directly associated with preventing neural tube defects.
Folic acid:
Folic acid is vital for preventing neural tube defects, including anencephaly. It's recommended for women of childbearing age and especially during the early stages of pregnancy.
Vitamin D:
Vitamin D is important for bone health, but its primary function is not directly related to preventing neural tube defects like anencephaly.
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