The child who is at highest risk of contracting pertussis is the:
partially vaccinated 4-year-old.
infant born at term.
child who came in contact with an infected person.
newborn whose mother was vaccinated with DTaP in the third trimester.
The Correct Answer is A
Rationale:
A. A partially vaccinated 4-year-old is at highest risk for pertussis because incomplete vaccination provides suboptimal immunity, leaving the child vulnerable to infection.
B. An infant born at term may have some passive maternal antibodies if the mother was vaccinated, offering partial protection.
C. A child who came in contact with an infected person is at risk, but the degree of susceptibility depends on immunity status. A fully vaccinated child has significantly lower risk.
D. A newborn whose mother received DTaP in the third trimester typically has transplacental antibodies, providing temporary protection during the first few months of life.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale:
A. Isolation from daycare is generally recommended while the child is symptomatic to prevent transmission, but a fixed 7-day period is not always necessary; symptom resolution varies.
B. Antipyretics should be given as needed for fever or discomfort, not routinely every 4 hours for multiple days.
C. Acute bronchiolitis typically presents with symptoms that peak within 1–3 days, with gradual improvement. Most children experience complete resolution within 10–14 days, which is important for caregivers to understand to prevent unnecessary concern or overuse of medications.
D. Antibiotics are not indicated for viral bronchiolitis, even if nasal discharge becomes purulent, as the infection is viral and antibiotics are ineffective.
Correct Answer is D
Explanation
Rationale:
A. Pubarche (development of pubic hair) may occur, but it is not usually the first sign in girls.
B. Leukorrhea (vaginal discharge) can appear later but is not the initial sign of puberty.
C. Rapid onset acne may accompany puberty but is not the earliest or most obvious sign.
D. Breast enlargement (thelarche) is typically the first and most noticeable sign of precocious puberty in girls.
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