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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Wearing a supportive bra can actually help to manage engorgement, so it's not recommended to avoid wearing one during the day.
Choice B rationale:
Cold compresses are typically applied after feeding to reduce swelling, not before. Applying them before might hinder the milk let-down reflex.
Choice C rationale:
Frequent feeding can help to alleviate engorgement by ensuring that the breasts are being emptied regularly.
Choice D rationale:
Stopping breastfeeding until finishing antibiotics is not advisable, as it can lead to decreased milk supply and potential issues with engorgement. Antibiotics prescribed by a healthcare provider are usually safe to take while breastfeeding, and interrupting breastfeeding can exacerbate the engorgement problem. This choice is not appropriate for managing breast engorgement and is therefore incorrect.
Correct Answer is C
Explanation
Choice A rationale:
Activating respiratory arrest procedures is not necessary in this situation. The newborn's respiratory rate, although slightly elevated, does not indicate respiratory arrest. Instead, such procedures are reserved for situations where the newborn has stopped breathing or is in acute respiratory distress.
Choice B rationale:
Requesting an order for supplemental oxygen may be premature. The newborn's respiration rate of 44/min, although shallow with periods of apnea, is still within the normal range for a newborn. Providing supplemental oxygen should be considered when the newborn is showing signs of significant respiratory distress or if oxygen saturation levels are low.
Choice C rationale:
The most appropriate action in this scenario is to continue routine monitoring of the newborn's respiratory rate and overall condition. Newborns often exhibit irregular breathing patterns, including periods of apnea, especially in the first few hours after birth. As long as the newborn's color, heart rate, and overall appearance are stable, routine monitoring is appropriate.
Choice D rationale:
There is no need to report the observation to the charge nurse immediately, as the newborn's respiratory rate and pattern fall within the expected range for a 12-hour-old newborn.
Reporting should be considered when there are significant deviations from the norm or if the newborn's condition deteriorates.
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