The nurse administers vitamin K to the newborn for which reason?
Most mothers have a diet deficient in vitamin K, which results in the infant’s being deficient.
Vitamin K prevents the synthesis of prothrombin in the liver and must be given by injection.
Bacteria that synthesize vitamin K are not present in the newborn’s intestinal tract.
The supply of vitamin K is inadequate for at least 3 to 4 months, and the newborn must be supplemented.
The Correct Answer is C
Bacteria that synthesize vitamin K is not present in the newborn’s intestinal tract. Vitamin K is essential for blood clotting, and newborns are at risk of bleeding problems due to their lack of vitamin K. Therefore, vitamin K is given by injection to prevent hemorrhagic disease in the newborn.
Choice A is wrong because most mothers do not have a diet deficient in vitamin K, and vitamin K deficiency in newborns is not related to the maternal diet.
Choice B is wrong because vitamin K does not prevent the synthesis of prothrombin in the liver, but rather enhances it. Prothrombin is a clotting factor that requires vitamin K for its production.
Choice D is wrong because the supply of vitamin K is not inadequate for at least 3 to 4 months, but rather for a few days until the newborn’s intestinal bacteria start producing it.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
choice D. Make a follow-up home visit to parents as soon as possible after the infant’s death. This is because a competent, qualified professional should visit the family at home as soon as possible after the death and provide the family with printed information about SIDS.
Choice A is wrong because explaining how SIDS could have been predicted and prevented is inappropriate.
SIDS cannot be prevented or predicted. Discussions about the cause will only increase parental guilt.
Choice B is wrong because the parents should be asked only factual questions to determine the cause of death. Interviewing parents in-depth concerning the circumstances surrounding the infant’s death may be intrusive and stressful.
Choice C is wrong because parents should be allowed and encouraged to make a last visit with their infant. Discouraging parents from making a last visit with the infant may deprive them of an opportunity to say goodbye and grieve.
Correct Answer is C
Explanation
Uterine atony.
This is when the uterus does not contract enough to stop the bleeding from the placental site after delivery. It is the most common cause of postpartum hemorrhage, accounting for up to 80% of cases. Uterine atony can be caused by factors such as prolonged or augmented labor, large baby, multiple pregnancies, infection, or retained placenta.
The woman in question has some risk factors for uterine atony, such as a large baby and augmentation of labor with Pitocin.
The other choices are wrong because:
A . Retained placental fragments: This is when parts of the placenta remain attached to the uterine wall and prevent it from contracting properly. It is the second most common cause of postpartum hemorrhage.
However, there is no indication in the question that the woman had any difficulty with the delivery of the placenta or that it was incomplete
B. Unrepaired vaginal lacerations: This is when there are tears or cuts in the vagina or cervix that cause bleeding. It is a less common cause of postpartum hemorrhage.
However, there is no indication in the question that the woman had any trauma during delivery or that she was examined for lacerations
D. Puerperal infection: This is when there is an infection in the uterus or other parts of the reproductive tract after delivery.
It can cause fever, pain, and bleeding. It is a rare cause of postpartum hemorrhage.
However, there is no indication in the question that the woman had any signs or symptoms of infection, such as fever, chills, or foul-smelling discharge.
Normal ranges for blood loss after delivery are less than 500 mL for vaginal birth and less than 1000 mL for C-section.
Any amount above these thresholds can be considered postpartum hemorrhage and requires prompt evaluation and treatment.
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