A nurse is caring for a newborn. How many blood vessels should the nurse expect to observe in the newborn's umbilical cord?

Choice A: The correct answer is (a) Bleeding. The purpose of administering vitamin K to a newborn following delivery is to prevent bleeding complications. Vitamin K plays a crucial role in the synthesis of blood clotting factors, specifically factors II, VII, IX, and X. Newborns have low levels of vitamin K at birth, and it takes a few days for their bodies to start producing it. This places them at risk of developing vitamin K deficiency bleeding (VKDB), which can lead to serious bleeding problems, including bleeding into the brain (intracranial haemorrhage). By giving the newborn a vitamin K injection, this deficiency is corrected, reducing the risk of bleeding complications.

Choice B rationale

(b) Infection. Administering vitamin K to a newborn is not intended to prevent infections. Vitamin K is essential for blood clotting and does not have a direct role in preventing or treating infections. Infection prevention measures involve proper hygiene practices and vaccination, but vitamin K is unrelated to this aspect of care.

Choice C rationale

(c) Potassium deficiency. Administering vitamin K to a newborn has no impact on potassium levels. Potassium is a different essential nutrient that plays a vital role in various physiological processes, but it is not related to blood clotting. The administration of vitamin K is specific to preventing bleeding complications, not addressing potassium deficiency.

Choice D rationale

(d) Hyperbilirubinemia. The correct answer is not (d) Hyperbilirubinemia. Vitamin K administration is not aimed at preventing or treating hyperbilirubinemia, a condition characterized by elevated levels of bilirubin in the blood. Hyperbilirubinemia is related to the breakdown of red blood cells and the liver'sability to process bilirubin, whereas vitamin K's primary role is in the clotting cascade.

Choice A rationale:

The client's statement, "I need to schedule the test when the baby is usually active,”. is accurate and demonstrates a good understanding of the nonstress test (NST). The NST is typically performed to assess the baby's heart rate and movements when they are active, which provides better insights into the baby's well-being.

Choice B rationale:

The client's statement, "The baby's heart rate will be monitored during the test,”. is correct and indicates a solid grasp of the purpose of the NST. During the test, the baby's heart rate is continuously monitored to assess their overall well-being and any signs of distress.

Choice C rationale:

This is the correct answer. The client's statement, "I will have to lie on my back during the test,”. indicates a need for further teaching. In an NST, pregnant individuals are usually asked to lie on their left side, not on their back. The left lateral position enhances blood flow to the placenta and the baby, making it the preferred position for this test.

Choice D rationale:

The client's statement, "I will be able to go to the bathroom during the test as necessary,”. is accurate and demonstrates a good understanding of the NST procedure. Unlike some other prenatal tests, NST allows pregnant individuals to change positions, including using the bathroom if needed, to ensure their comfort during the monitoring process.