A nurse is collecting data from a newborn. Which of the following anatomical landmarks should the nurse use to measure chest circumference?

Sternal notch.

Nipple line.

Lower ribcage border.

Axillae.

Answer and Explanation

The Correct Answer is B

The nurse should use the lower ribcage border to measure chest circumference.

Choice A rationale:

The sternal notch is not an appropriate landmark for measuring chest circumference. It is a notch at the top of the sternum and not indicative of chest circumference.

Choice B rationale:

When measuring the chest circumference of a newborn, the correct anatomical landmark to use is the nipple line. This method ensures that the measurement is taken at a consistent and reproducible location across different individuals, providing an accurate assessment of the chest size relative to growth and development standards. It's important to position the measuring tape at the level of the nipples, encircling the chest at its largest point, which typically aligns with the nipple line.

Choice C rationale:

The lower ribcage border is also not suitable as it may vary significantly with respiratory movements and is not a stable landmark for consistent measurements.

Choice D rationale:

The axillae (armpits) are not used as a landmark for measuring chest circumference. It is not a standardized anatomical point for this purpose.

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Correct Answer is D

Explanation

A. This is not a primary consideration before bathing a newborn. The timing of the last feeding is more relevant to assessing the risk of hypoglycemia rather than determining readiness for a bath.

B. This temperature is slightly below the recommended range for newborns (36.5°C to 37.5°C). Bathing should be delayed until the newborn's temperature is stable.

C. While care of the umbilical cord is important, it does not determine the timing of the first bath. The cord can be kept dry even if the baby is bathed.

D. Ensuring that the newborn has maintained a stable body temperature for at least 2 hours is crucial before giving the first bath. Bathing can cause a drop in body temperature, so it's essential that the newborn's thermoregulation is stable to avoid hypothermia.

A. Changing conjugated bilirubin to unconjugated. B. Synthesis of vitamin K. C. Changing unconjugated bilirubin to conjugated bilirubin. D. Removal of meconium.

Correct Answer is C

Explanation

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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A nurse is collecting data from a newborn. Which of the following anatomical landmarks should the nurse use to measure chest circumference?

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Naxlex Comprehensive Predictor Exams

The nurse admits a newborn to the admission nursery and prepares to bathe the baby for the first time after assessing which of the following?

Correct Answer is D

Explanation

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

Correct Answer is C

Explanation

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A nurse is reinforcing teaching with a client who is postpartum about bathing her newborn. Which of the following statements by the client indicates a need for further teaching?

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Which newborn is at the lowest risk for elevated unconjugated bilirubin levels?

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

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