Heart rate

Cardiovascular Response: When exercising the muscles requires a constant supply of oxygen, it is the hearts job to make sure there is enough oxygen being pumped round the body for the muscles, the heart has to pump harder and faster as more oxygen is required to get round the body to the muscles in use otherwise they will fatigue quicker. If this is repeated regularly, then over time the heart will become stronger as will become more used to the higher demands. At the start of exercise, the…

size of the left ventricle, increase in stroke volume, increased cardiac output, increase in contractility, and an increase in blood flow to myocardium. The muscular walls of the heart thicken especially in the left ventricle, which leads to a more powerful contraction. The increased thickness of the walls of the heart also increases contractility, which causes an increased stroke…

Nursing interventions for Mrs. J at the time of the admission The interventions for Mrs. J are starting of oxygen through nasal cannula because her O2 saturation is 82% and heart rate of 118/min to help in decreasing workload of the heart. She should be closely monitored and as mentioned in scenario patient is admitted to Telemetry unit because she need immediate and close monitoring. Stat EKG and EBGs should be done to find out baseline. Vital sign should be monitored closely including…

Although these drugs may help maintain a normal heart rhythm, they can cause side effects, including: nausea, dizziness, and fatigue. Rarely, they may cause ventricular arrhythmias – life-threatening rhythm disturbances originating in the heart’s lower chamber. These medications may be needed indefinitely. Even with medications, there is a chance of another episode of atrial fibrillation. The patient may be prescribed medications to control the heart rate and…

of the heart and blood vessels. The heart is the strongest pumping muscle in the body. Important mechanics of the heart allows the heart to properly do its job The heart is responsible for intrinsic cardiac conduction, the cardiac cycle, and cardiac output. The blood vessels in the cardiovascular system are just as important. The blood vessels aid in blood flowing to body tissue, maintaining blood pressure, and controlling blood volume using resistance. A special characteristic of the heart is…

Stage training is an organized and systematic method of cardiorespiratory training that gives athletes and clients defined parameters for exercise intensity. These parameters will illicit specific physiological adaptations while decreasing the risk of overtraining and injury (Clark, Sutton, & Lucett, 2014). It is important to properly understand what each training zone is designed to do and how they should be implemented to maximize their effects. Hans Selye’s theory of general adaptation…

Heart disease is the leading cause of death in the United States. Public Health is working on lowering those number to a target number by 2020. The goal for public health is to improve the health of the heart and the quality of life. They plan on doing this by having prevention, detection and treatment for factors that are and might be of risk. Having early identification and treatment for heart attacks can help reduce future cardiovascular events. Health disease is a public health concern…

Sometimes when we ingest certain substances, we can stimulate foci (nodes that pace the heart at a certain speed) in the heart which can give us the feeling of “skipping a beat.” The feeling of “skipping a beat” is actually another beat that follows the original beat quickly which gives us that feeling. A lot of factors can stimulate other foci such as atrial and junctional in our heart. These factors, according to Dr. Dubin, includes adrenaline (epinephrine) released by adrenal glands,…

creates an imbalance of acid. To compensate with this imbalance the body speeds up its breathing taking in more oxygen and it also speed up the heart allowing the oxygen to be transported to the muscle faster. The human body cannot keep up with this for long. Eventually the heart and lungs reach their maximum work efforts and it can only neutralize the lactic acid for a short period of time. This buildup of lactic acid is what causes the muscles to feel fatigued and soar the next day. Once the…

located in the upper chamber of the heart. This special pathway is as follow: the sinoatrial node, atrioventricular node, his-purkinje network. The impulse starts in a small bundle of specialized cell which is known as the sinoatrial node located in the right atrium. The sinoatrial node sets the rate and rhythm of the heartbeat. The atrioventricular node slows the electrical signal before it enters the ventricles. It is located in the center of the heart between the atria and the ventricles…