Intro to Arterial Blood Gases & Pulmonary Physiology ress 141
Identify the characteristics of acids and bases Identify the electrolytes commonly measured in the blood serum such as sodium, bicarbonate, chloride and potassium and their effect on homeostasis In order for the human body to grow and function effectively, it needs to be able to maintain a constant state of well-being. This condition is referred to as homeostasis. Homeostasis requires that an organisms internal environment remains constant and therefore will resist changes that may occur. Cellular function depends on chemical and enzymatic processes, which must efficiently take place within the cells and tissues. These processes require homeostasis. The environment that surrounds these processes must remain in balance or the chemical reactions will not occur properly, and the physiologic processes will suffer. An inability to maintain homeostasis can result in sickness, disease, or death. Take for example oxygen, carbon dioxide, and dissolved food. These chemicals move in or out of cells by diffusion. Another chemical that relies on homeostasis to move in or out of cells is glucose. Diffusion defects can occur anywhere in the body but as respiratory therapists, we worry about pulmonary diffusion defects because this deficiency affects pulmonary gas exchange resulting in hypoxemia, a low concentration of oxygen in the blood. One of the most important components of the chemical environment is the pH or acid-base balance of the surrounding fluids that take part in cellular metabolism and organ function. Acids and bases are found extensively throughout the human body and require buffer systems to keep them at acceptable levels. This proper level of acids and bases is referred to as the pH. The pH is used to measure how well the body is maintaining homeostasis. Prompt In your own words, provide detailed responses to the following: Explain the primary goal of acid-base balance in terms of homeostasis. Identify the two organ systems that are responsible for acid-base balance and explain how they specifically maintain this balance. In detail describe how you would know that an ABG result was a) an acute respiratory acidosis and b) a metabolic acidosis. Include a medical condition that can cause each. Explain the specific meaning of the following terms as they relate to ABG physiology: Ventilation Diffusion External Respiration Internal Respiration Requirements (read these carefully): Submit your answers, in your own words, as an essay form, complete sentences, in at least 500 words on a Word document (excluding the prompt, title, cover page, citations/references, quotations). You must cite at least three references in IWG format to defend and support your position. This is a formal written project, grammar, and spelling count. Quotes are not included in the word count. Note: All “Assignments will be automatically run through the Vericite plagiarism checking program. VERICITE Everyone check your Vericite score after youve submitted your Week’s Assignment. If the score is higher than 20%, you will need to make the appropriate corrections. If your Vericite score is high, go in and review the report and identify all those items that are matching to published sources. Next, put these matches into your own words. Corrections will need to be done before the Assignment’s deadline (Saturday at midnight Mountain time). Any adjustments made to these correct after the due date will receive a deduction in points for a late submission.