A patient is in the hospital with bacterial meningitis. It needs to be determined whether the patient has...?

an infection with Neisseria meningitidis or Haemophilus influenzae. It needs to be detrmined through the Scientific Method. What organism caused the problem? What are the experements required to answer the hypothesis: Stains, biochemical, and media for each organism and the expected results. What is the conclusion of the problem based on the expected results?

I understand what types of bacterial meningitis which is being asked for, the Haemophilus influenzae and Neisseria meningitis. I do not understand what would determine what one caused the bacterial meningitis. Even if you test both types of meningitis what determines which one goes with the bacterial meningitis, I thought they were both bacterial meningitis. I am so confused please help me.

A simple gram stain of spinal fluid could determine the bacteria. Neisseria are gram negative diplococci and Haemophilus are small gram negative coccobacilli ( fat rods)If you planted both on a sheep blood agar and chocolate agar, the Haemophilus would grow on both and the neisseria would only grow on the chocolate.

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