The nurse administers vitamin K intramuscularly as prophylaxis to the newborn based on which of the following rationales?
Select one:
Vitamin K will increase erythropoiesis.
Vitamin K will enhance bilirubin breakdown.
Vitamin K will stop Rh sensitization.
Vitamin K will promote blood clotting ability. Vitamin K will promote blood clotting ability.
The Correct Answer is D
Choice A Reason: Vitamin K will increase erythropoiesis. This is an incorrect statement that confuses vitamin K with erythropoietin. Erythropoietin is a hormone that stimulates red blood cell production in the bone marrow. Vitamin K does not affect erythropoiesis.
Choice B Reason: Vitamin K will enhance bilirubin breakdown. This is an incorrect statement that confuses vitamin K with phototherapy. Phototherapy is a treatment that exposes the newborn's skin to light, which converts bilirubin into water-soluble forms that can be excreted by the liver and kidneys. Bilirubin is a yellow pigment that results from the breakdown of red blood cells. High levels of bilirubin can cause jaundice and brain damage in newborns. Vitamin K does not affect bilirubin metabolism.
Choice C Reason: Vitamin K will stop Rh sensitization. This is an incorrect statement that confuses vitamin K with Rh immune globulin. Rh immune globulin is an injection given to Rh-negative mothers who deliver Rh-positive babies, to prevent them from developing antibodies against Rh-positive blood cells in future pregnancies. Rh sensitization is a condition where the mother's immune system atacks the baby's blood cells, causing hemolytic disease of the newborn. Vitamin K does not affect Rh sensitization.
Choice D Reason: Vitamin K will promote blood clotting ability. This is a correct statement that explains the rationale for administering vitamin K as prophylaxis to newborns. Vitamin K is essential for the synthesis of clotting factors in the liver. Newborns have low levels of vitamin K at birth due to poor placental transfer and lack of intestinal bacteria that produce vitamin K. Therefore, they are at risk of bleeding disorders such as hemorrhagic disease of the newborn.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason: Frequent voiding encourages sphincter control. This is an incorrect statement that has no relevance to labor and delivery. Sphincter control refers to the ability to contract and relax the muscles that control urination and defecation. It is not affected by frequent voiding.
Choice B Reason: A full bladder impedes oxygen flow to the fetus. This is an incorrect statement that confuses a full bladder with a prolapsed cord. A prolapsed cord is a condition where the umbilical cord slips through the cervix before the baby and becomes compressed by the fetal head, which can reduce oxygen flow to the fetus. A full bladder does not affect oxygen flow to the fetus.
Choice C Reason: Frequent voiding prevents bruising of the bladder. This is an incorrect statement that exaggerates the effect of a full bladder on the bladder wall. A full bladder may cause some pressure or discomfort on the bladder, but it does not cause bruising or damage.
Choice D Reason: A full bladder can impede fetal descent. This is a correct statement that explains why it is important for the nurse to assess the bladder regularly and encourage the laboring client to void every 2 hours.
Correct Answer is A
Explanation
Choice A Reason: Place the infant skin to skin with the mother and re-check temperature in 30 minutes. This is because skin-to-skin contact is an effective and safe method of increasing the infant's temperature and promoting thermoregulation. Skin-to-skin contact also has other benefits such as enhancing bonding, breastfeeding, and maternal-infant attachment.
Choice B Reason: Check the infant's CBC and blood cultures, as this is a sign of probable sepsis. This is an unnecessary action that may cause undue stress and discomfort to the infant and the mother. A slightly decreased temperature in a full-term infant is not a sign of probable sepsis, but rather a common finding that may be due to environmental factors, such as exposure to cold air or wet linens.
Choice C Reason: Return the infant to the nursery for close observation under warming lights. This is an undesirable action that may interfere with the early initiation of breastfeeding and bonding between the mother and the infant. Warming lights are not recommended for routine use in healthy newborns, as they may cause dehydration, hyperthermia, or eye damage.
Choice D Reason: Notify the physician immediately and suggest orders for placement in an incubator. This is an excessive action that may indicate a lack of knowledge or confidence on the part of the nurse. An incubator is not indicated for a stable, full term infant with a slightly decreased temperature, as it may expose the infant to unnecessary interventions, infections, or separation from the mother.
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