NUR2063: Essentials of Pathophysiology
Title of Assignment:
Module 08 Written Assignment – Asthma Case Study
Purpose of Assignment:
This assignment will help the student evaluate of a respiratory disorder, which, if untreated, can be a serious condition. Students need to understand respiratory complications and how it can impact ventilation and respiration is important to the study for maintaining homeostasis in the body.
Course Competency(s):
· Evaluate pathophysiologic alterations that affect the neurologic and respiratory systems.
Content:
J.S. is a 42-year-old man who lives in the Midwest and is highly allergic to dust and pollen and has a history of mild asthma. J.S’s wife drove him to the emergency room when his wheezing was unresponsive to his fluticasone/salmeterol (Advair) inhaler. J.S. was unable to lie down, and began to use accessory muscles to breathe. J.S. is immediately started on 4 L oxygen by nasal cannula and intravenous (IV) D5W at 75 mL/hr. A set of arterial blood gases is sent to the laboratory. J.S. appears anxious and says that he is short of breath.
Vital signs
NUR2063: Essentials of Pathophysiology
BP = 152/84 HR = 124 bpm RR = 42 Temp = 100.40F
ABGs
pH = 7.31 PaCO2 = 48 HCO3 = 26 PaO2 = 55
Instructions:
Investigate the pathophysiology of asthma and the clinical manifestations of the disease. Analyze the case study provided and determine what symptoms support the diagnosis of asthma. Identify the treatment provided in the emergency department and determine what additional therapies are needed to mitigate the asthma symptoms and return the client to wellness.
1. Do you have any concerns with the numbers above?
2. Identify what may be causing (etiology) J.S. to have an exacerbation of asthma.
Prepare a 3-5 page paper outlining the causes of asthma, the symptoms that the client presents and the management of the disorder. Use at least one scholarly source to support your findings. Examples of scholarly sources include academic journals, textbooks, reference texts, and CINAHL nursing guides. Be sure to cite your sources in-text and on a References page using APA format.
You can find useful reference materials for this assignment in the School of Nursing guide: https://guides.rasmussen.edu/nursing/referenceebooks
Have questions about APA? Visit the online APA guide: https://guides.rasmussen.edu/apa
09/09/2021
NUR2063: Essentials of Pathophysiology
**Title: Asthma Case Study Analysis**
**Introduction:**
Asthma is a chronic respiratory disorder characterized by inflammation of the airways, resulting in reversible airflow obstruction and respiratory symptoms. This paper aims to investigate the pathophysiology of asthma, analyze the clinical manifestations presented in the case study of J.S., and discuss the management strategies for asthma exacerbation.
**Pathophysiology of Asthma:**
Asthma involves complex interactions between genetic predisposition and environmental factors. In individuals susceptible to asthma, exposure to triggers such as allergens, pollutants, respiratory infections, and exercise can lead to airway inflammation and hyperresponsiveness. This inflammation causes bronchoconstriction, mucus hypersecretion, and edema, resulting in airflow obstruction and symptoms like wheezing, dyspnea, coughing, and chest tightness.
**Clinical Manifestations in J.S.:**
In the case study, J.S. presents with worsening wheezing unresponsive to his usual inhaler, dyspnea, and accessory muscle use. His vital signs indicate tachycardia, tachypnea, and fever. Arterial blood gas analysis reveals respiratory acidosis with hypoxemia, indicating inadequate ventilation and gas exchange. These symptoms and findings support the diagnosis of an acute asthma exacerbation.
**Treatment in the Emergency Department:**
J.S. receives supplemental oxygen and intravenous fluids to support oxygenation and hydration. However, his respiratory distress persists, necessitating further intervention. The administration of short-acting beta-agonists such as albuterol via nebulization is essential to relieve bronchoconstriction and improve airflow. Additionally, systemic corticosteroids like methylprednisolone may be prescribed to reduce airway inflammation and prevent relapse.
**Additional Therapies:**
In addition to bronchodilators and corticosteroids, other therapies may be considered to manage severe asthma exacerbations. These include:
- Magnesium sulfate: Intravenous magnesium can act as a bronchodilator and anti-inflammatory agent, especially in patients with refractory symptoms.
- Continuous positive airway pressure (CPAP): Non-invasive ventilation techniques like CPAP can improve oxygenation and reduce respiratory effort in severe cases.
- Heliox therapy: A mixture of helium and oxygen may be used to decrease airway resistance and improve gas exchange in patients with significant airflow obstruction.
**Concerns with ABG Results:**
The ABG results indicate respiratory acidosis (low pH) with hypercapnia (high PaCO2) and hypoxemia (low PaO2). These findings suggest inadequate ventilation and impaired gas exchange, consistent with severe asthma exacerbation. The elevated bicarbonate (HCO3) level may indicate compensatory renal retention of bicarbonate to buffer the respiratory acidosis.
**Etiology of Asthma Exacerbation:**
Several factors may contribute to J.S.’s asthma exacerbation, including exposure to allergens (e.g., dust and pollen), respiratory infection, non-compliance with controller medications, and environmental triggers (e.g., smoke, pollution). In this case, inadequate control of asthma symptoms with his usual maintenance inhaler suggests a failure in asthma management or exposure to potent triggers precipitating the exacerbation.
**Conclusion:**
Asthma is a chronic respiratory condition characterized by airway inflammation and hyperresponsiveness, leading to reversible airflow obstruction and respiratory symptoms. Effective management of asthma exacerbations involves prompt recognition, aggressive treatment with bronchodilators and corticosteroids, and consideration of additional therapies based on the severity of symptoms.
References:
– National Asthma Education and Prevention Program. (2020). Expert panel report 3: Guidelines for the diagnosis and management of asthma (EPR-3). Bethesda, MD: National Heart, Lung, and Blood Institute.
– Global Initiative for Asthma (GINA). (2021). Global strategy for asthma management and prevention. Retrieved from https://ginasthma.org/
NUR2063: Essentials of Pathophysiology
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