question archive You are at a baseball game and another fan experiences dizziness and nearly faints in the stands next to you
You are at a baseball game and another fan experiences dizziness and nearly faints in the stands next to you
Subject:BiologyPrice:4.87 Bought7
You are at a baseball game and another fan experiences dizziness and nearly faints in the stands next to you. You tell him that you are a paramedic and will walk him to your car where you have your medical equipment. He reports that he has had a headache off and on since he had a tooth extracted four days ago.
Although he is feeling very weak, his blood pressure is normal. When you listen to his heart you note that he has a pronounced murmur. He reports having had rheumatic fever 15 years ago. You examine his fingernails an find one that has tiny petechial hemorrhages under it.
1. What are petechial hemorrhages?
2. Which cardiovascular infectious condition is this?
3. What is the most likely causative organism and the route of transmission?
4. What's the connection, if any, with rheumatic fever?
5. What type of culture would a physician most like order, and why?
6. What is the treatment? Is there a way to prevent the condition?
7. What are the staining and morphological characteristics of this disease agent?
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Answer:
1. Petechial hemorrhage can be defined as hemorrhage(escape of blood from the blood vessel) into the skin forming petechiae . This kind off hemorraghe are small and discrete.
2. This condition is known as Infective endocarditis
3. Enterococci and Streptococcus bovis. The route of transmission is digestive tract commonly
4.Both rheumatic fever and endocarditis mainly affects the mitral valave.moreover cuasative organism are some what same.
5. Blood culture results are usually done,Doctors then identify and see which antibiotics will kill them. Sometimes the blood cultures don't grow any bacteria, even if a person has IE. This is called culture-negative endocarditis, and it requires antibiotic treatment
6. Antibiotics usually are given for 2 to 6 weeks through an intravenous (IV) line inserted into a vein, moreover surgical replacement of heart valve is done if required
7. Gram +ve , cocci in nature
