A nurse is caring for a child who is suspected of having pertussis. The nurse should recognize that the pathophysiology of pertussis includes which of the following?
The infection mainly affects the nostrils.
The infection is viral in nature.
The toxins released by the bacteria attack epithelial cell cilia.
The lungs and airway become inflamed.
Secretions are produced and are challenging to expel.
Correct Answer : C,D,E
A. Pertussis primarily affects the respiratory tract rather than just the nostrils.
B. Pertussis is caused by the bacterium Bordetella pertussis, making it a bacterial infection, not viral.
C. The bacteria release toxins that damage the cilia of the epithelial cells in the respiratory tract, disrupting their function.
D. Inflammation occurs in the lungs and airway due to the infection, contributing to symptoms such as cough.
E. The infection leads to excessive secretions that are difficult to expel, resulting in the characteristic whooping cough associated with pertussis.
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Correct Answer is B
Explanation
A. Using a booster seat until the child reaches the appropriate height for a seatbelt is correct and aligns with safety guidelines for child passengers.
B. Allowing a child to ride in the front seat while still using a booster seat is unsafe; children should remain in the back seat until they are at least 13 years old.
C. Ensuring that the child wears a helmet while riding a bicycle is an important safety measure and demonstrates understanding of injury prevention.
D. Teaching the child to avoid running into the street without looking shows awareness of pedestrian safety and the need for supervision and education about traffic safety.
Correct Answer is A
Explanation
A. A child with varicella (chickenpox) should return to school only after all the blisters have crusted over, indicating that the infectious stage has passed and they are no longer contagious.
B. Receiving the varicella vaccine does not apply to children who already have the infection; vaccination is preventive, not a treatment for those already infected.
C. Completing one week of antiviral medication is not a sufficient criterion for returning to school, as the child may still be contagious until all lesions are crusted.
D. Returning to school as soon as the rash appears is not safe, as the child is highly contagious during the initial rash stage and until all lesions have crusted.