Heart failure represents a major and growing public health problem. When a person is diagnosed with heart failure, they have an abnormality in their heart structure or function. The most common cases involve systolic or diastolic dysfunction of the ventricular myocardium, or both. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an original essay In the recent case study, Ms. Brown admitted to the emergency room with severe shortness of breath or dyspnea, a common symptom of CHF. Dyspnea involves shortness of breath and difficulty breathing. However, in Ms. Brown's case, this problem was diagnosed with some degree of severity due to her abnormal respiratory rate of 24 breaths/minute. This leads to further complications and may respectively be the result of hypoxia. Additionally, hypoxia is caused by a reduction in the amount of oxygen present in body tissues below physiologically adequate levels. Oxygen deficiency may be the result of the reduced ability of hemoglobin to release oxygen in its normal function. The role of systemic circulation in oxygen delivery results from the product of cardiac output and arterial oxygen concentration. However, when arterial oxygen concentration is normal in the presence of insufficient tissue oxygen supply, heart failure can occur. This explains why the O2 levels examined by Ms. Brown were 85% with ambient air. Additionally, Ms. Brown's pulse was incredibly high, at 120 beats/minute. This finding proves that his heart rhythm is irregular and presents another problem regarding tachycardia. As a result, blood pumping is not effective and deprives the rest of his body of the oxygen it needs. Because his heart can't pump enough blood, his body lacks the oxygen needed for metabolic processes. As the nurse tested Ms. Brown using an ECG machine, the logs confirmed atrial fibrillation resulting from her heart failure, including the clinical manifestations of dyspnea, hypoxia, and tachycardia. . These circumstances lead to poor blood circulation which must be treated immediately to avoid further complications for Ms. Brown. Ms. Brown's records show she has a history of heart failure diagnosis noted two years ago. The appearance of these clinical manifestations proves that it is a case of chronic heart failure. Most patients who develop heart failure and are hospitalized require appropriate treatment to improve their current health status. The nurse plays a key role in this situation by monitoring and reporting any changes in the patient's condition. Cells in the body use oxygen to transfer energy stored in food into a usable form. This process, called cellular respiration, allows cells to harness energy to perform vital functions. This includes the fueling of muscles (including involuntary muscles such as the heart) and the movement of materials into and out of cells. Without oxygen in the body, cells can function for a limited period of time. Long-term depletion of oxygen leads to cell death and ultimately death of the organism. Cells also use oxygen to facilitate cellular respiration. This type of respiration is called aerobic cellular respiration. In this process, stored energy is converted into a usable form, primarily by reacting glucose and.