The nurse is assessing the respiratory system of a newborn. Which anatomic differences place the infant at risk for respiratory compromise? (Select All that Apply.)
The nasal passages are narrower.
The tongue is smaller.
There are significantly fewer alveoli.
The larynx is more funnel shaped.
The trachea and chest wall are less compliant.
Correct Answer : A,C,D,E
A. Narrower nasal passages can lead to increased airway resistance and difficulty in breathing, as infants are primarily nasal breathers.
B. A smaller tongue does not directly contribute to respiratory compromise; however, it can pose a risk for airway obstruction if the tongue falls back against the oropharynx.
C. Significantly fewer alveoli mean less surface area for gas exchange, which can impair oxygenation and carbon dioxide elimination.
D. A more funnel-shaped larynx can predispose infants to upper airway obstruction and increase the work of breathing.
E. Less compliant trachea and chest wall make it harder for the infant to expand the lungs, leading to increased work of breathing and potential respiratory distress.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Substituting cow's milk if breast milk is not availablE. Cow's milk is not recommended as a substitute for breast milk or infant formula for infants under 12 months old due to its low iron content and potential for causing gastrointestinal irritation.
B. Advising fluid intake per feeding of 5 or 6 ounces: The appropriate fluid intake for a 2-week- old infant is typically guided by feeding cues and may vary from feeding to feeding. Providing a specific volume of fluid per feeding may not be appropriate, as infants should be fed on demand.
C. Advocating iron supplements with bottle-feeding: Iron supplementation is generally recommended for breastfed infants starting at around 4 months of age, but it is not typically necessary for formula-fed infants during the first few weeks of life. Additionally, iron
supplementation should be prescribed and monitored by a healthcare provider rather than advocated as a general guideline.
D. Discouraging the addition of fruit juice to the diet: This is the most effective anticipatory guidance because it aligns with current recommendations from pediatric healthcare
organizations. Fruit juice offers little nutritional value for infants and can contribute to dental caries and excessive calorie intake. It is generally recommended to avoid giving fruit juice to infants under 1 year old.
Correct Answer is C
Explanation
A. Height in girls increases rapidly after menarche and usually ceases immediately after
menarchE. Height increases during adolescence are not directly related to menarche. Growth in girls typically continues for several years after menarche, although at a slower rate compared to the pre-pubertal growth spurt.
B. Boys' growth spurts usually begin between the ages of 8 and 14 years and end between the ages of 13½ and 17½ years: While boys do experience a growth spurt during adolescence, the timing and duration of growth spurts can vary widely among individuals. Growth typically
continues beyond the age of 14, with some boys reaching their full adult height in their late teens or early twenties.
C. Peak height velocity (PHV) occurs at approximately 12 years of age in girls or about 6 to 12 months after menarchE. Peak height velocity refers to the period of most rapid growth during adolescence. In girls, PHV typically occurs around the age of 12, with growth continuing for some time after menarche.
D. Boys reach PHV and peak weight velocity (PWV) at about 16 years of agE. Boys generally experience PHV and PWV later than girls, typically occurring around the age of 14 to 16. These milestones mark the period of most rapid growth in boys, with height and weight increasing significantly during this time.
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