Heart failure is a major and growing public health problem. When heart failure is diagnosed, there is an abnormality in the structure or function of the heart. The most common cases involve systolic or diastolic myocardial ventricular dysfunction, or both. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get Original Essay In the recent case study, Ms. Brown was admitted to the ED with severe shortness of breath or dyspnea, a common symptom of CHF. Dyspnea refers to shortness of breath and discomfort. In Mrs. Brown's case, however, she was diagnosed with a level of severity due to her abnormal respiratory rate of 24 breaths/minute. This leads to further complications and may be the result of hypoxia. Furthermore, hypoxia is due to a reduction in the amount of oxygen present in body tissues which is below physiologically adequate levels. Oxygen deficiency may be the result of hemoglobin's reduced ability to release oxygen during its normal functioning. The role of the systemic circulation in oxygen delivery results from the product of cardiac output and arterial oxygen concentration. However, when there is a normal level of arterial oxygen concentration in the presence of inadequate oxygen supply to the tissues, heart failure can occur. This explains the O2 levels examined by Mrs. Brown as 85% with ambient air. In addition to this, Ms. Brown's heart rate was incredibly high: 120 beats per minute. This result shows that your heartbeat is irregular and presents another problem regarding tachycardia. As a result, blood pumping is ineffective and deprives the rest of the body of the oxygen it needs. Because his heart can't pump enough blood, his body doesn't have the oxygen it needs for metabolic processes. As the nurse examined Mrs. Brown using an ECG machine, the documents confirmed atrial fibrillation as a result of her heart failure, including clinical manifestations of dyspnea, hypoxia, tachycardia. . These circumstances result in poor blood flow which must be treated immediately to avoid further complications for Mrs Brown. Ms Brown's records show she has a history of being diagnosed with heart failure which was noted two years ago. The appearance of these clinical manifestations demonstrates that it is chronic heart failure. Most patients who develop heart failure and present to hospital require appropriate treatment to improve their current state of health. The nurse is a key element in this situation as she monitors and reports any changes in the patient's condition. The body's cells use oxygen to transfer the energy stored in food into a usable form. This process, called cellular respiration, allows cells to use energy to perform vital functions. This includes strengthening muscles (including involuntary muscles like the heart) and moving materials in and out of cells. Without oxygen in the body, cells can function for a limited period. Long-term oxygen depletion leads to cell death and ultimately the death of the organism. Cells also use oxygen to assist in cellular respiration. This type of respiration is called aerobic cellular respiration. In this process the stored energy is converted into a usable form, mostly..