In a newborn infant, which of the following is the liver's job related to bilirubin?

Changing conjugated bilirubin to unconjugated.

Synthesis of vitamin K.

Changing unconjugated bilirubin to conjugated bilirubin.

Removal of meconium.

Answer and Explanation

The Correct Answer is C

Choice A rationale:

The liver's job related to bilirubin is not changing conjugated bilirubin to unconjugated. Conjugated bilirubin is the water-soluble form of bilirubin that is excreted in bile and urine. Unconjugated bilirubin, on the other hand, is the fat-soluble form, which is transported to the liver and conjugated to become water-soluble. The conversion goes from unconjugated to conjugated, not the other way around.

Choice B rationale:

The liver's job related to bilirubin is not the synthesis of vitamin K. The liver is responsible for synthesizing clotting factors, including factors II (prothrombin), VII, IX, and X, but not vitamin K itself. Vitamin K is obtained from dietary sources or supplements and is essential for blood clotting.

Choice C rationale:

This choice is the correct answer. The liver's primary function related to bilirubin is changing unconjugated bilirubin to conjugated bilirubin. As mentioned earlier, unconjugated bilirubin is produced from the breakdown of heme in old red blood cells, and it needs to be processed in the liver to become water-soluble and eventually excreted in bile and urine.

Choice D rationale:

The liver's job related to bilirubin does not involve the removal of meconium. Meconium is the first stool passed by a newborn, and its elimination is unrelated to the liver's function in processing bilirubin.

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Correct Answer is A

Explanation

Choice A rationale:

The correct guidance includes giving the newborn sponge baths until the cord stump falls off, which helps to keep the area dry. It is essential to keep the umbilical cord stump clean and dry to prevent infection. Submerging the cord stump in water could increase the risk of infection.

Choice B rationale:

Covering the cord with the diaper is not advisable. The diaper could trap moisture around the cord stump, leading to a higher risk of infection. The cord stump should be exposed to air as much as possible to aid in drying and healing.

Choice C rationale:

Washing the cord with mild soap and water is not necessary and could introduce moisture, which should be avoided. Instead, the stump should be cleaned gently with a soft, dry cloth if it gets dirty.

Choice D rationale:

Wrapping the cord in petroleum jelly gauze is not a recommended practice. Applying petroleum jelly or other substances to the cord stump can interfere with the drying process and increase the risk of bacterial growth, leading to infection.

A. Dry the baby thoroughly. B. Suctioning the mouth and nose with a bulb syringe to clear mucus. C. Observe the chest and abdomen. D. Count the number of respirations per minute.

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

Explanation

Choice A rationale:

Drying the baby thoroughly is not directly related to assessing the successful transition of the respiratory system. It is essential for warmth and comfort but does not provide specific information about the respiratory system.

Choice B rationale:

Suctioning the mouth and nose with a bulb syringe to clear mucus is important to ensure the airways are clear and the newborn can breathe effectively. This action helps assess the airway patency and successful initiation of breathing.

Choice C rationale:

Observing the chest and abdomen is crucial to assess the respiratory effort and symmetry. Normal chest movements and equal rise and fall of the abdomen indicate a successful transition of the respiratory system.

Choice D rationale:

Counting the number of respirations per minute is essential to determine if the respiratory rate falls within the expected reference range (around 30-60 breaths per minute for a newborn) and if there are any irregularities.

Choice E rationale:

Observing the color of the mucous membranes is important as cyanosis (blue discoloration) may indicate inadequate oxygenation. Pink mucous membranes are a positive sign, indicating a successful transition of the respiratory system.

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In a newborn infant, which of the following is the liver's job related to bilirubin?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reinforcing teaching with the parents of a newborn about caring for the umbilical cord stump. Which of the following instructions should the nurse include?

Correct Answer is A

Explanation

Exhibit 1. How can the nurse assess the successful transition of the respiratory system in the newborn? (Select All that Apply.).

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

Explanation

Exhibit 1. The names of the newborn reflexes are? Select all that apply.

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