Stella L Financialis Case Study

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Section 1: Test used to identify unknown. Stella L. Dallas is a 92 years old female patient that was taken to the Emergency Room after showing sings/symptoms of a respiratory distress. Once Ms. Dallas was admitted into the ER a sample of sputum was collected from the patient to try to identify the pathogen that is causing her illness. Patient has been a resident in a nursing home for the past ten years, she also has been bedridden and had suffered asthma most of her adult life. Prior to this incident Ms. Dallas was recovered from a bacterial (staph) pneumonia fallowing treatment with amoxicillin for four weeks. Based on the signs/symptoms and previous condition of Ms. Dallas the diagnosis is recurrent pneumonia. After identifying the cause…show more content…
However the doctor should choose the appropriate antibiotic based on different number of things, such as age, symptoms or allergies due to the used of wrong antibiotic. In the case of Ms. Dallas she is allergic to cephalosporin even though cephalosporin can be used to treat a wide variety of bacterial infections, including respiratory tract infections this antibiotic cannot be giving to the patient. In order to find the right antibiotic that would help our patient fight pneumonia we needed to run an antimicrobial susceptibility test. A Kirby-Bauer test was conducted; the following tests will show us how effective a certain antibiotics can be when given to specific bacterium. We placed four different antibiotics on a Mueller-Hinton agar enriched with starch, and incubated at 37 degrees Celsius for seven days. This process will control the rate of diffusion of the antibiotic being tested. The diffusion area is known as zone of inhibition. In regards to Ms. Dallas’s we tested four different antibiotics clindamycin, amoxicillin, erythromycin, and tetracycline. They showed a zone of inhibition of 20mm, 0mm, 30mm, and 25mm respectively. Out of the four antibiotics we tested one antibiotic that showed the most susceptibility to C. pseudodiphtheriticum was erythromycin with a zone of inhibition of 30 mm only 23 mm was required to be susceptible. After completing the Kirby-Bauer sensitivity test erythromycin was the most susceptible, therefore will be recommended to Ms. Dallas to treat C. pseudodiphtheriticum that caused her pneumonia. The recommended 250 to 500 mg every 6 to 12 hours; maximum: 4 g daily (merk manual). When it comes to prescribing antibiotic to patient Antimicrobial selectivity is important, we need to make sure the antibiotics will not harm the patient but instead will inhibit the growth of bacterium. When taking

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