Oxygen was first admitted to the client with chest pain more than 100 years ago (Metcalfe, 2011). Chest pain is a broad category that can contain many different conditions, but for the purposes of this analysis we focus primarily on a myocardial infarction. A myocardial infarction is primarily referred to as a heart attack and occurs when one or more coronary arteries leading to the heart reduce or completely stop blood flow (Tuipulotu, 2013). The administration of high concentrations of oxygen to patients with chest pain is now integrated into guidelines, protocols and care pathways, even in the absence of clear supporting evidence (Nicholson, 2004). A high concentration of oxygen means that up to 60% of it is administered (Knott, 2012). More recent research has suggested that the use of oxygen in this scenario is unnecessary and may lead to unwanted side effects, especially in normoxic cardiac patients (Moradkham & Sinoway, 2010). The purpose of this comparative analysis is to deconstruct and understand both the benefits and risks of the commonly known practice of administering oxygen to the client with chest pain. By completing this analysis using recent and appropriate evidence, more improved practice can be provided and understood. Oxygen is widely used in both chronic and acute cases, in emergency medicine, in hospital or emergency medical services (Nicholson, 2004). Just like any other form of medication, oxygen is a drug that, if used incorrectly, could cause potential harm, even death (Luettel, 2010). Oxygen is admitted to the patient with chest pain for two main reasons. The first is through the increase in arterial oxygen tension, which in opposition causes a decrease in acute ischemic damage, and therefore in time of the entire infarcted area (Moradk...... at the center of the document .... ..or those patients with chest pain, in order to maintain oxygen saturation near 100%, unconsciously realizing that the patient is exposed to significant periods of hyperoxia (Moradkham & Sinoway, 2010). to poor health monitoring capabilities (Moradkham & Sinoway, 2010 From reading this essay it is clear that there is a strong demand and need for further clinical research on the effectiveness of oxygen in patients with chest pain). healthcare providers fully understand the effects of oxygen on the body. By completing and implementing more up-to-date and revised evidence and research on the effect of oxygen on the client with chest pain, better practice can be put in place to ensure that the patient be well. receive the best care to save his life.