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Sample Answer for NURS 6501 ALTERATIONS IN CELLULAR PROCESSES Included After Question



At its core, pathology is the study of disease. Diseases occur for many reasons. But some, such as cystic fibrosis and Parkinson’s Disease, occur because of alterations that prevent cells from functioning normally. 

Understanding of signals and symptoms of alterations in cellular processes is a critical step in diagnosis and treatment of many diseases. For the Advanced Practice Registered Nurse (APRN), this understanding can also help educate patients and guide them through their treatment plans. 

For this Discussion, you examine a case study and explain the disease that is suggested. You examine the symptoms reported and explain the cells that are involved and potential alterations and impacts.  



Be sure to review the Learning Resources before completing this activity.
Click the weekly resources link to access the resources.  


To prepare: 

By Day 1 of this week, you will be assigned to a specific scenario for this Discussion. Please see the “Course Announcements” section of the classroom for your assignment from your Instructor. 


Post an explanation of the disease highlighted in the scenario you were provided. Include the following in your explanation: 

The role genetics plays in the disease. 
Why the patient is presenting with the specific symptoms described. 
The physiologic response to the stimulus presented in the scenario and why you think this response occurred. 
The cells that are involved in this process. 
How another characteristic (e.g., gender, genetics) would change your response. 

Read a selection of your colleagues’ responses. 


Respond to at least two of your colleagues on 2 different days and respectfully agree or disagree with your colleague’s assessment and explain your reasoning. In your explanation, include why their explanations make physiological sense or why they do not. 

A Sample Answer For the Assignment: NURS 6501 ALTERATIONS IN CELLULAR PROCESSES


Meagan Marie Mihalik 

YesterdayNov 28 at 9:38pm 

Manage Discussion Entry 

                In this week’s case study, the patient presents with a chief complaint of a sore throat and multiple other symptoms that resulted in a positive strep test. Strep throat, also known as bacterial pharyngitis, is caused by the presence of Streptococcus group A bacteria that is spread by respiratory droplets and is the most common cause of pharyngitis in children (Chauhan, et al., 2016). In a recent meta-analysis, 37% of children less than 18 years old were diagnosed with Group A Strep and presented to an outpatient center for treatment for a sore throat in comparison to only 15% of adults (Ashurst & Edgerley-Gibb, 2022). 

                The patient presented with a sore throat, reddened posterior pharynx with white exudate, and 3+ tonsils- all due to the presence and colonization of the streptococcus bacteria. The positive sign of anterior and posterior cervical adenopathy is due to the infection and the body’s response to try and fight the infection. The patient was prescribed ten days’ worth of amoxicillin and after consumption, immediately experienced swelling of the tongue and lips, difficulty breathing, and wheezing. The patient was having an anaphylaxis reaction to the antibiotics. An anaphylaxis response is IgE mediated and results in mast cells releasing a large amount of histamine and leukotrienes that cause bronchospasm and edema (Vaillant, Vashisht, & Zito, 2022). 

                Even after antibiotic treatment, some children get recurrent strep throat due to a genetic basis. A study performed by Dr. Shane Crotty and Dr. Jennifer Dan (2019), explored the germinal centers of both children with a normal rate of infection and those with recurrent tonsillitis. Their findings suggested that children with recurring strep throat had smaller germinal centers with fewer B and helper T cells which are responsible for producing antibodies and fighting invading pathogens. Upon further research, it was discovered that the genetic component was identified as two variants in the HLA genomic region which are associated with increased susceptibility to recurrent tonsillitis as well as protecting against the disease. If a child presented with recurring group A streptococcus pharyngitis, it may warrant a different response than treating with just antibiotics, such as referring them to an ENT for a tonsillectomy. 



Ashurst, J. V., & Edgerley-Gibb, L. (2022). Streptococcal Pharyngitis. National Library of Medicine. Retrieved from https://www.ncbi.nlm.nih.gov/books/NBK525997/ 

Chauhan, S., Kashyap, N., Kanga, A., Thakur, K., Sood, A., & Chandel, L. (2016). Genetic diversity among group A streptococcus isolated from throats of healthy and symptomatic children. Journal of Tropical Pediatrics, 62(2), 152-157. doi:10.1093/tropej/fmv092 

Crotty, S., & Dan, J. (2019). Recurrent group A streptococcus tonsillitis is an immunosusceptibility disease involving antibody deficiency and aberrant TFH cells. Science Translational Medicine, 11(478). doi:DOI: 10.1126/scitranslmed.aau3776 

Vaillant, A. A., Vashisht, R., & Zito, P. M. (2022). Immediate hypersensitivity reactions. StatPearls. doi:https://www.ncbi.nlm.nih.gov/books/NBK513315/ 

 ReplyReply to Comment 



Collapse SubdiscussionSuzanne Olesko 

Suzanne Olesko (She/Her) 

YesterdayNov 28 at 9:43pm 

Manage Discussion Entry 

Case Discussion 1 

            In this scenario, an otherwise healthy 16-year-old boy is diagnosed with strep pharyngitis (strep throat) via an in-office rapid strep test, which tests for group A streptococcus bacteria (Cohen et al., 2016). He was prescribed penicillin, which is the antibiotic of choice for a patient with no known allergy to penicillin given that there is no strain of group A streptococcus bacteria that is resistant to it (“Centers for Disease Control,” 2022). Unfortunately for this young man, upon taking his first dose of penicillin he experienced an anaphylactic response, as evidenced by lip and oral swelling and breathing difficulties. This response is the most rapid and severe, and characteristic of a Type I hypersensitivity reaction, or IgE-mediated response resulting from the sensitization of mast cells by the binding of IgE to Fc protein receptors on the plasma membranes (McCance & Huether, 2019). Once sensitized, further exposure results in degranulation and release of histamine causing bronchial constriction and increased vascular permeability producing the breathing difficulties and lip and oral swelling respectively seen in this patient (Patterson & Stankewicz, 2020; McCance & Huether, 2019). Though type IV (IgG-mediated) hypersensitivity reactions are found in penicillin allergies, the primary result of this would be related to a delayed hypersensitivity mechanism resulting in dermatologic symptoms, not reported in this case (McCance & Huether, 2019). 

            Of note, Type I allergic responses can only occur with prior sensitization of the Fc proteins on mast cells. This patient was presented as having no known drug allergies, and while he could have taken penicillin in the past, which could have resulted in sensitization without evidence of allergic reaction, consideration should be given to the possibility that the patient carries a genetic erroneous beta (b)-lactam allergy. This could result in the allergic reaction without previously having taken the drug (Bhattacharya, 2010). Knowing the patient has a serious sensitivity to penicillins, the clinician should be aware of a cross-sensitivity to cephalosporins due to similarities in the chemical structure (Patterson & Stankewicz, 2020). Though research has shown females have a greater predisposition to penicillin allergy than males, the case presentation demonstrates a clear hypersensitivity reaction in this patient (Park et al., 2007). 


Bhattacharya, S. (2010). The Facts About Penicillin Allergy: A Review. Journal of Advanced Pharmaceutical Technology and Research, 1(1), 11–17. 

Centers for Disease Control and Prevention. (2022, June 27). Pharyngitis (strep throat): Information for clinicians. Centers for Disease Control and Prevention. https://www.cdc.gov/groupastrep/diseases-hcp/strep-throat.html#:~:text=Penicillin%20or%20amoxicillin%20is%20the,that%20is%20resistant%20to%20penicillin. 

Cohen, J. F., Bertille, N., Cohen, R., & Chalumeau, M. (2016). Rapid antigen detection test for group A streptococcus in children with pharyngitis. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.cd010502.pub2 

McCance, K., & Huether, S. (2019). Pathophysiology: The biologic basis for disease in adults and children (8th ed.). Elsevier. 

Park, M. A., Matesic, D., Markus, P. J., & Li, J. T.-C. . (2007). Female sex as a risk factor for penicillin allergy. Annals of Allergy, Asthma & Immunology, 99(1), 54–58. https://doi.org/10.1016/s1081-1206(10)60621-7 

Patterson, R. A., & Stankewicz, H. A. (2020). Penicillin Allergy. PubMed; StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK459320/ 

 ReplyReply to Comment 



Collapse SubdiscussionMeagan Marie Mihalik 

Meagan Marie Mihalik 

8:54pmNov 29 at 8:54pm 

Manage Discussion Entry 

Hello Suzanne, 

Great explanation of the type I hypersensitivity presented in this week’s case study. I was interested to learn about the genetic component and the possibility of the beta (b)-lactam allergy you spoke of and did not consider it when I was reviewing this patient. My assumption was that the patient likely took penicillin before making him hypersensitive to it now. Upon further research, I found an article that studied the prediction of penicillin allergy through genome mapping. This study researched 387 patients with immediate allergic reactions to B-lactams and found significant associations between gene variants HLA-DRA and an allergy to penicillin (Gueant, et al., 2015). It is important to note that this study confirmed predictors of penicillin allergies but not to cephalosporins. Although rare, it is interesting to understand that there could be a genetic component to those with allergies to penicillin.  Another aspect to consider with this case study is how recurring strep throat could be a genetic component. Germinal centers of individuals with recurrent strep were found to be smaller, there were fewer B and helper T cells and two variants in the HLA genomic region could make them more susceptible to tonsillitis (Crotty & Dan, 2019).  



Crotty, S., & Dan, J. (2019). Recurrent group A streptococcus tonsillitis is an immunosusceptibility disease involving antibody deficiency and aberrant TFH cells. Science Translational Medicine, 11(478). doi:DOI: 10.1126/scitranslmed.aau3776 

Gueant, J.-L., Romano, A., Cornejo-Garci, J.-A., Oussalah, A., Chery, C., Blanca-Lopez, N., . . . Gaeta, F. (2015). HLA-DRA variants predict penicillin allergy in genome-wide fine-mapping genotyping. Journal of Allergy and Clinical Immunology, 135(1), 253-259. doi:https://doi.org/10.1016/j.jaci.2014.07.047 

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