A nurse is caring for a child who has bacterial meningitis. Which of the following findings should indicate to the nurse that the child can be removed from droplet precautions?

Managing infectious diseases in a hospital setting requires knowledge of transmission-based precautions. The nurse must apply evidence-based guidelines regarding the efficacy of antimicrobial therapy in reducing the pathogen load of Neisseria meningitidis or Haemophilus influenzae to prevent respiratory droplet spread. Choice A rationale . Nuchal rigidity is a clinical symptom of meningeal irritation but does not correlate with the level of contagiousness. A patient may still shed pathogens even as physical symptoms improve. Precautions are based on pathogen clearance rather than the resolution of stiffness. Choice B rationale . Droplet precautions can typically be discontinued once the patient has received appropriate intravenous antibiotic therapy for 24 hours. This duration is sufficient to reduce the bacterial load in the nasopharynx, making the patient non-infectious to others in the environment. Choice C rationale . Cerebrospinal fluid cultures can remain negative for various reasons and often take several days to process. Waiting for a final negative culture is not the standard clinical trigger for removing droplet precautions. The 24-hour antibiotic rule is the priority. Choice D rationale . A temperature below 37.4 degrees C (99.3 degrees F) indicates a reduction in the inflammatory response but does not confirm the absence of communicable bacteria. Fever resolution is a sign of recovery, not a definitive indicator for ending isolation..