In suspected epiglottitis, from which specimen is the diagnostic sample most appropriately collected?

In suspected epiglottitis, from which specimen is the diagnostic sample most appropriately collected?

• A. Blood
• B. Throat swab
• C. Nasopharyngeal swab
• D. Sputum

Answer: (A)

In suspected epiglottitis, confirming invasive Haemophilus influenzae type b infection is the goal. Blood culture is the most appropriate diagnostic specimen because bacteremia is common in invasive Hib disease and will reliably identify the pathogen. Throat or nasopharyngeal swabs primarily reflect colonization rather than disease and won’t distinguish an invasive infection from benign carriage. Sputum isn’t a reliable source for this condition and can be difficult to obtain cleanly, plus it may not contain the organism. Directly sampling the epiglottis is dangerous in this setting due to the risk of airway obstruction, so blood is the best option for diagnosis.

In suspected epiglottitis, confirming invasive Haemophilus influenzae type b infection is the goal. Blood culture is the most appropriate diagnostic specimen because bacteremia is common in invasive Hib disease and will reliably identify the pathogen. Throat or nasopharyngeal swabs primarily reflect colonization rather than disease and won’t distinguish an invasive infection from benign carriage. Sputum isn’t a reliable source for this condition and can be difficult to obtain cleanly, plus it may not contain the organism. Directly sampling the epiglottis is dangerous in this setting due to the risk of airway obstruction, so blood is the best option for diagnosis.