Which newborn reflex elicits the following reaction: Head turns to one side - the way the head is facing, the arm/leg is stretched out while the other is bent?
Tonic neck reflex.
Moro reflex.
Startled reflex.
Babinski reflex.
The Correct Answer is A
Choice A reason:
The tonic neck reflex, also called the fencing posture, occurs when a baby's head is turned to one side. The arm and leg on that side stretch out, while the opposite arm and leg bend up at the elbow. This reflex lasts until the baby is about 5 to 7 months old. This reflex matches the description of the question.
Choice B reason:
The Moro reflex, also called the startle reflex, is the baby's reaction to being startled. The cause is often a loud sound, a sudden movement, or even their own cry. As an adult, you may jump or gasp when you are startled. A baby will throw back their head, extend their arms and legs, cry, then pull their arms and legs back in. This reflex does not match the description of the question.
Choice C reason:
The startled reflex is not a distinct reflex in newborns. It is another name for the Moro reflex, which is explained.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Human placental lactogen (hPL) is a hormone produced by the placenta that helps regulate the metabolism of the mother and fetus, but it is not used as the basis for pregnancy tests. It plays a role in modulating the metabolic state of the mother during pregnancy to facilitate the energy supply of the fetus.
B. Estrogen (estriol) is another hormone produced by the placenta, which is important for maintaining pregnancy and preparing the body for childbirth. However, it is not the hormone detected by pregnancy tests. Estriol levels increase significantly during pregnancy but are not used as a marker for pregnancy tests.
C. Progesterone (progestin) is crucial for maintaining the uterine lining and supporting early pregnancy. While it is essential for a successful pregnancy, it is not the hormone that pregnancy tests detect. Progesterone helps prevent uterine contractions and supports the endometrium.
D. Human chorionic gonadotropin (hCG) is the hormone detected by pregnancy tests. It is produced by the placenta shortly after the embryo attaches to the uterine lining. The presence of hCG in the blood or urine is a reliable indicator of pregnancy, which is why it is the basis for pregnancy tests.
Correct Answer is B
Explanation
Choice A reason:
If the client reports frequent uterine contractions , it is not indicative of a distended bladder. Postpartum uterine contractions are normal and necessary to help the uterus return to its pre-pregnancy size.
Choice B reason:
The fundus (the top portion of the uterus being palpable to the right of the midline suggests a distended bladder. A full bladder can displace the uterus, causing the fundus to deviate from the midline.
Choice C reason:
Having less than 2.5 cm of rubra lochia on a perineal pad is related to the amount of vaginal discharge after birth and does not provide information about bladder distention.
Choice D reason:
The client's report of increased thirst may indicate dehydration or the body's response to fluid loss during childbirth but is not directly related to bladder distention.
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