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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
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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