Answer:
Ventricular fibrillation a type of arrhythmia characterized by a very fast heart rate which causes no blood to reach vital organs causing cardiac arrest.While Atrial fibrillation is an atrial tachyarrhythmia characterized by the fact that the atria beat in an uncoordinated way at a very high rate that exceeds 350 beats per minute. As a result, the atria are no longer effective in pumping blood to the ventricles.
Explanation:
Under normal conditions the heart contracts rhythmically and synchronously. This contraction is the result of an electrical impulse that is generated in the atrium, reaches the ventricle and results in a heartbeat. In an arrhythmia there is an alteration of this mechanism that leads to the heart not contracting regularly, generating a rhythm disorder. The contraction of the ventricles pumps blood to the rest of the body. In ventricular fibrillation, the heart rhythm is very fast and chaotic (up to 300 beats per minute) and is characterized by not being able to provoke an efficient heart beat. Thus, the lack of contraction of the ventricles causes the blood to barely be pumped from the heart, producing a collapse of the cardiovascular system and cardiac arrest. Atrial fibrillation is characterized by disorganized and very rapid atrial activity (350-600 beats / min). This leads to an irregular ventricular response (150-200 beats / min) and an irregular pulse.During atrial fibrillation, the atrial contraction that helps fill the ventricles with blood is lost; this can significantly reduce cardiac output, particularly in patients with mitral stenosis, hypertension, or hypertrophic cardiomyopathy.It is associated with an increased risk of thromboembolism (formation of blood clots in the heart that can dislodge and go through the bloodstream until impacted on the a blood vessel, causing lack of irrigation in that area) and therefore stroke (cerebral thromboembolic accident).
Answer
When children have higher risk for disease and inadequate access to health care, the following is likely to occur;
• Unmet healthcare needs such as lack of preventive and screening services
• Lack of treatment of illnesses leading to high infant death
• Preventing patients from needing costly hospital care
Explanation
The challenges that result from inadequate access to health care cause health disparities. For example rural communities are dependent on the health of it community thus access to healthcare is critical for the population’s well being and optimal health. Other types of healthcare services which are difficult to access in rural areas are obstetric services, mental health services, oral health services and substance health services.
I can’t see the whole question but would love to help :)
If Max continues to hold his breath while lifting weights, he will
become dizzy and light-headed. Breathing is an important component in
performing weight training activities. This is because it contributes in the
release of carbon dioxide in the blood which enables the muscles to take more
in more oxygen. As a result, muscle contractions are more efficient and
successes in lifting heavy weights will happen more often. A person must
practice inhaling when there is less effort and exhaling when effort should be
placed to lift the heavy set of weights.
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