The nurse administers vitamin K to the newborn for what reason?

Bacteria that synthesize vitamin K are not present in the newborn's intestinal tract.

Vitamin K prevents the synthesis of prothrombin in the liver and must be given by injection.

The supply of vitamin K is inadequate for at least 12 months, and the newborn musti supplemented throughout infancy.

Most mothers have a diet deficient in vitamin K, which results in the infant being deficient.

Answer and Explanation

The Correct Answer is A

A) Bacteria that synthesize vitamin K are not present in the newborn's intestinal tract:
Newborns are born with a sterile gastrointestinal tract, meaning they do not yet have the intestinal bacteria necessary to synthesize vitamin K. Vitamin K is essential for the activation of clotting factors, and without sufficient vitamin K, newborns are at risk for bleeding disorders, particularly a condition known as vitamin K deficiency bleeding (VKDB). Administering vitamin K by injection shortly after birth ensures the baby has adequate levels to prevent bleeding.
B) Vitamin K prevents the synthesis of prothrombin in the liver and must be given by injection:
This statement is incorrect. Vitamin K does not prevent the synthesis of prothrombin; rather, it is essential for the liver to synthesize clotting factors, including prothrombin. The injection of vitamin K in newborns is necessary to provide adequate levels of vitamin K to support proper blood clotting, as newborns cannot produce enough on their own at birth due to the absence of gut bacteria that normally produce it.

C) The supply of vitamin K is inadequate for at least 12 months, and the newborn must be supplemented throughout infancy:
While it is true that newborns have a limited supply of vitamin K at birth, this deficiency is typically addressed with a single injection given shortly after birth. Supplementing vitamin K throughout infancy is generally not required, as the infant's gastrointestinal tract will start to develop the necessary bacteria to synthesize vitamin K within the first few weeks to months of life. The first dose of vitamin K prevents bleeding disorders, and in most cases, additional supplementation is not necessary.

D) Most mothers have a diet deficient in vitamin K, which results in the infant being deficient:
While maternal diet does play a role in the newborn's initial vitamin K levels, it is not the primary reason for the deficiency. Vitamin K deficiency in newborns is primarily due to the lack of gut bacteria necessary to produce it, rather than maternal diet. The practice of administering vitamin K to all newborns ensures that they receive adequate levels to prevent bleeding, regardless of maternal dietary intake.

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Correct Answer is A

Explanation

A) Wash your hands before and after you use the bathroom and change your sanitary pad:
The most important instruction for preventing postpartum infection is proper hand hygiene. The risk of infection in the postpartum period is high, especially because the perineum and cervix are healing after delivery. By washing hands before and after using the bathroom or changing sanitary pads, the mother reduces the risk of introducing harmful bacteria into the vaginal area. Proper hand hygiene helps minimize the risk of urinary tract infections (UTIs), wound infections, and endometritis, which are all common postpartum complications.

B) Do not take tub baths for eight weeks:
While it is true that taking tub baths can potentially introduce bacteria into the vaginal area, particularly if the perineum is healing from a tear or episiotomy, this is a secondary concern. The priority is hand hygiene, which directly prevents infection by limiting bacterial exposure. The recommendation to avoid tub baths is generally valid for the first 6 weeks, but it is less critical than hand washing.

C) Use tampons instead of pads as they are better at inhibiting bacterial growth:
Using tampons is not recommended in the postpartum period because they can increase the risk of toxic shock syndrome and can irritate the vaginal area or interfere with uterine healing. Pads are preferred to absorb lochia (postpartum discharge) and are safer for vaginal healing. Tampons do not inhibit bacterial growth more effectively than pads, and the use of tampons can actually increase the risk of infection, so this option is incorrect.

D) Douche with a mild antiseptic twice a day for two weeks, starting at day three:
Douching is not recommended during the postpartum period. It can disrupt the natural vaginal flora, increase the risk of infections like vaginitis, and delay the healing process. The vagina has its own natural defense mechanisms, and douching with antiseptics is unnecessary and can do more harm than good. Instead, the focus should be on keeping the area clean and dry and practicing proper hand hygiene.

A. "Babies usually breathe in and out through their noses so they can feed without choking." B. "You are right. I will report the baby's small nasal openings to the pediatrician right away.* C. *Everything about babies is small. It truly is amazing how everything works so well." D. "The baby does rarely open his mouth but you can see that he isn't in any distress.

Correct Answer is A

Explanation

A) "Babies usually breathe in and out through their noses so they can feed without choking.":
Newborns are obligate nasal breathers, meaning they primarily breathe through their noses rather than their mouths, which helps coordinate breathing with feeding. This nasal breathing mechanism helps prevent aspiration and ensures that babies can feed while still breathing. It is perfectly normal for a baby to primarily use their nose for breathing, especially in the early days of life, and no cause for concern should be raised about small nasal openings unless the baby is showing signs of respiratory distress.

B) "You are right. I will report the baby's small nasal openings to the pediatrician right away.":
A small nasal opening is common in newborns and is not usually a cause for alarm unless it interferes with breathing, feeding, or shows signs of a more significant anatomical issue. There is no immediate need to report it unless the baby is having trouble breathing or feeding. The nurse should offer reassurance instead.

C) "Everything about babies is small. It truly is amazing how everything works so well.":
While this response may seem comforting, it is not very informative. It dismisses the mother’s concern rather than providing a clear and educational explanation. Reassuring the mother with factual information about why babies breathe through their noses and how this works effectively for them would be more helpful.

D) "The baby does rarely open his mouth but you can see that he isn't in any distress.":
This response minimizes the importance of the mother’s question and doesn’t fully address her concern. While it’s true that babies rarely open their mouths to breathe, the explanation needs to focus on the physiological reasoning behind it. The nurse should also reassure the mother that nasal breathing is normal in newborns and not typically a concern unless signs of distress are present.

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The nurse administers vitamin K to the newborn for what reason?

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Naxlex Comprehensive Predictor Exams

A nurse is giving discharge instructions to a new mother. What is the most important instruction to address the prevention of postpartum infection?

Correct Answer is A

Explanation

A mother asks whether or not she should be concerned that her baby never opens his mouth to breathe when his nose is so small. Which of the following is the nurse's best response?

Correct Answer is A

Explanation

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