You are working in the emergency department of a regional hospital in rural kentucky. a patient is brought in by emergency medical technicians (emt's). their initial report is suspected meningitis because the patient has a headache and stiff neck. the emts add that the patient's meningitis symptoms appear rather mild – he still has neck movement, and the headaches are not severe. the patient's overall condition is poor, however. he is very thin, has dark spots on his face and upper body, and open bloody-looking eruptions on his lips. his fever is 104 0 f, and his blood pressure is low. he also has severe diarrhea. 1. what is the first step in determining if the patient has meningitis? 2. this test reveals the presence of very large cells that appear to be eukaryotic, surrounded by a large capsule. what is the probable diagnosis? name some other eukaryotic organisms that can cause meningitis symptoms. 3. what groups of people are at risk for this infection? 4. how is

 1.  Meningitis is an infection of meninges, the membrane that protects the brain. To prove there is an infection in the brain, you can take a specimen of cerebrospinal fluid by lumbar puncture. The sample can be examined microscopically (for the presence of bacteria and leukocyte) or chemically(by looking at the protein count).

2. Cerebrospinal fluid should be sterile so the presence of eukaryotic cells means that the patient is meninges infected by bacteria. The diagnosis probably is meningitis bacteria. The capsule indicates the bacteria is Neisseria meningitidis, make the diagnosis become meningococcal meningitis.
Meningitis could also caused by Listeria monocytogenes, Haemophilus influenza, Streptococcus pneumoniae, or a virus.

3. The site of infection of meningitis could be from blood or direct contact to the cerebrospinal fluid. 
Direct contact needs an open wound from the skull or the vertebrae that allow the invasion. Any accident that has enough force to fracture the skull be at risk.
Bacteria can spread from blood in case of sepsis. Immunocompromised patient has a higher risk. Children, incomplete vaccination and living in high-density community also increase the risk.

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

A. mitochondrion b. nucleus