A 10-month-old infant comes to the ER with nasal congestion, lethargy and a high-pitched cry. Which additional assessment finding along with these symptoms would be of greatest concern to the nurse?
The Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"B"}
When evaluating an infant presenting with systemic and neurological symptoms, clinicians must immediately screen for life-threatening conditions like bacterial meningitis. Recognizing the combination of altered mental status (lethargy), signs of increased intracranial pressure (a high-pitched cry), and systemic vascular changes is crucial for rapid intervention and avoiding severe complications.
Rationale for correct choices:
• Petechiae on the chest and abdomen: A high-pitched cry, lethargy, and irritability in an infant are concerning neurologic signs that may indicate meningitis. The presence of petechiae is especially alarming because it may signal meningococcal meningitis with septicemia. Petechial rash in an ill infant can rapidly progress to life-threatening sepsis and requires immediate evaluation and treatment.
• Lumbar puncture: A lumbar puncture is the priority diagnostic test for suspected meningitis because it allows cerebrospinal fluid (CSF) analysis to identify infection, inflammation, glucose and protein abnormalities, and causative organisms. Early diagnosis is essential for rapid initiation of antimicrobial therapy and prevention of neurologic complications.
Rationale for incorrect choices:
• Congested cough with pale yellow sputum: Although respiratory symptoms may indicate an upper respiratory infection or pneumonia, they are less concerning than neurologic symptoms combined with petechiae, which strongly suggest meningitis or meningococcemia.
• Temp of 101.2 tympanic: Fever is common in many childhood infections and alone is not the most concerning finding. Neurologic changes and petechial rash indicate a much more serious and potentially rapidly fatal condition.
• Poor feeding for the past two days: Poor feeding is significant in infants and may accompany infection or dehydration, but it is less emergent than petechiae associated with possible bacterial meningitis.
• Chest x-ray: A chest x-ray may be useful if pneumonia is suspected, but it is not the highest-priority diagnostic study when meningitis is strongly indicated by neurologic symptoms and petechial rash.
• CT scan of the head: CT imaging may be performed in certain neurologic conditions, especially before lumbar puncture if increased intracranial pressure is suspected, but it is not the first-line diagnostic test for meningitis in this scenario.
• Throat culture: A throat culture evaluates upper respiratory pathogens such as streptococcal infection but does not diagnose meningitis or explain the infant’s neurologic symptoms and petechiae.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","D","E"]
Explanation
Childhood immunization schedules are based on adaptive immune priming, booster dose timing, and age-specific antigen exposure responses. At 4 to 6 years, children receive booster vaccinations to reinforce waning immunity and ensure long-term protection against viral exanthems, bacterial toxins, and poliovirus infection before school entry.
Rationale:
A. MMR is administered as a second booster dose at 4 to 6 years to ensure sustained immunity against measles, mumps, and rubella. This reinforces memory B-cell response and prevents breakthrough infections during school exposure.
B. Hepatitis B series is typically completed in infancy with doses at birth, 1 to 2 months, and 6 to 18 months. No routine booster is required at 5 years unless the child is unimmunized or high-risk exposure.
C. Varicella vaccine requires a second dose at 4 to 6 years to improve seroconversion rates and long-term immunity against varicella-zoster virus, reducing risk of breakthrough chickenpox in school settings.
D. DTaP includes a preschool booster dose at 4 to 6 years to reinforce immunity against diphtheria, tetanus, and pertussis toxins, ensuring continued protection as antibody titers decline after primary series.
E. IPV (inactivated poliovirus vaccine) is given as a final booster dose at 4 to 6 years to maintain immunity against poliovirus and complete the primary immunization series before school entry requirements.
F. Hib vaccine series is completed in early childhood, typically by 15 to 18 months in healthy children. At 5 years, routine administration is not required unless the child has specific high-risk immunocompromised conditions.
Correct Answer is B
Explanation
Non-accidental trauma in pediatrics is strongly associated with developmental mismatch injuries, especially in non-ambulatory infants. Abuse-related fractures often involve long bones, high-force mechanisms, and inconsistent history. Infants are at highest risk due to limited mobility and inability to generate sufficient force for major skeletal injury.
Rationale:
A. Humerus fractures in school-aged children are commonly accidental, typically resulting from falls, playground activity, or sports-related trauma. The injury pattern is consistent with developmental mobility, making abuse less likely in this age group.
B. Femur fractures in an infant require significant force not typically encountered in normal caregiving or accidental falls. This pattern is highly concerning for non-accidental trauma, especially when the child is not ambulatory, making abuse the most likely cause.
C. Radius fractures in preschool-aged children commonly occur from falls onto an outstretched hand during play. This is a typical accidental injury pattern, reflecting normal gross motor activity and does not strongly indicate inflicted trauma.
D. Elbow fractures in teenagers are frequently associated with sports injuries or high-energy falls. At this developmental stage, exposure to physical activity makes accidental mechanisms far more probable than abuse-related injury.
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