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.

Answer and Explanation

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.

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Correct Answer is A

Explanation

choice A.

Infant of an Rh-negative mother and a father who is Rh-positive and homozygous for the Rh factor.

Rh incompatibility occurs when a woman is Rh-negative and her baby is Rh-positive. This can cause hemolytic disease of the neonate (HDN), a condition where the mother’s antibodies destroy the baby’s red blood cells.

Choice B is wrong because if both the mother and the baby are Rh-negative, there is no risk of Rh incompatibility.

Choice C is wrong because if the father is heterozygous for the Rh factor, there is a 50% chance that the baby will be Rh-negative and not affected by Rh incompatibility.

Choice D is wrong because if both the mother and the baby are Rh-positive, there is no risk of Rh incompatibility.

A. Respiratory rate of 36 breaths/minute at rest B. Appetite slowly increasing C. Temperature above 37.7° C (100° F) D. New, frequent coughing E. Turning blue or bluer than normal

Correct Answer is ["C","D","E"]

Explanation

The parents should notify the physician if the infant has a temperature above 37.7° C (100° F), new frequent coughing, or turning blue or bluer

than normal. These are signs of infection, respiratory distress, or cyanosis, which could indicate complications after cardiac surgery.

Choice A is wrong because a respiratory rate of 36 breaths/minute at rest is within the normal range for an infant.

Choice B is wrong because an appetite slowly increasing is a positive sign of recovery and does not require immediate attention.

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

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Naxlex Comprehensive Predictor Exams

Which infant would be more likely to have Rh incompatibility?

Correct Answer is A

Explanation

A nurse is conducting discharge and teaches parents about the care of their infant after cardiac surgery. The nurse instructs the parents to notify the physician if the conditions occur. (Select all that apply.)

Correct Answer is ["C","D","E"]

Explanation

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