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Case study #1 A 10 year old child developed a severe sore throat, high fever, an

ID: 132418 • Letter: C

Question

Case study #1 A 10 year old child developed a severe sore throat, high fever, and swollen lymph nodes. Her mother took her to the pediatrician, who diagnosed strep throat, following a positive react to a rapid strep test. The pediatrician prescribed a 10-day regimen of oral amoxicillin and told the mother to bring the child back to the office in two weeks to rescreen her for the bacteria. After 4 days of carefully administering the antibiotic to her child, the child was much better and the mother forgot to give her the medication. To save money, she did not take the child back to the physician for a follow-up exam. About 3 weeks later, the child developed joint aches, nodules under the skin of her arms, and odd spasms of the neck and limbs. The child was returned to the doctor, who performed an electrocardiogram (displays heartbeat), which was abnormal. A. B. C. Identify the disease. what is the causative organism? what lead to the development of this disease? (human action & bacterial mechanism & virulence factor involved) Case Study #2 old diabetic woman came into the ER with a fever of 104"F, chills, and labored breathing. She produced th blood. The woman reported a recent history of a mild cold to the examining physician. A thick sputum flecked wi chest X-ray revealed extensive infiltration in the lower lobes of both lungs. The sputum microscopy and culture on blood agar. The gram-stain revealed gram-positive diplococcic and muccoid colonies with no hemolysis on the blood agar was collected for A. B. What is the causative bacterium? What led you to this conclusion? what is the optimal treatment for this patient?

Explanation / Answer

Case study 1:

A. The disease is Rheumatic fever.

B. It is caused by bacteria called Streptococcus.

C. A strep throat infection lead to the Rheumatic fever. Virulence factors include M protein and lipoteichoic acid, hyaluronic acid.

Case study 2:

A. Causative bacteria is streptococcal pharyngitis. These bacteria have a mucoid or smooth colonial morphology lead to the conclusion that bacteria is Streptococcus.

B. Penicillin is the first treatment of choice. Amoxicillin is equally effective.

Case study 3:

A. Upper Respiratory infection are diagonosis for the patient.

B. Blood test , Throat swab, Chest X ray are some of the test that are needed to confirm the test.

C. Patchy spot on the lungs represent pulmonary nodule. It is formed from large growth in lungs.

D. CT scan give the idea of the stage