
A.
To determine: The probable cause of the man’s symptoms.
Introduction. In terms of body shape and image AAS users also undergo a condition called muscle dysmorphia. This is also known as reverse anorexia, where the individual starts to perceive his/her body as too small, too muscular or insufficiently lean.
A.

Explanation of Solution
The chest pain is generally considered as a first sign of an underlying heart condition. The other symptoms like shortness of breath, high pulse rate can also be indicative of oxygen and blood not reaching properly to the heart. The elevated ST segment with T wave inversion implies that the individual is undergoing myocardial damage due to lack of oxygen reaching the heart. The myocardial damage can be diagnosed as heart attack because of the elevated creatine enzyme from heart muscles (CK-MB) and troponin I which is a cardiac enzyme and the elevation of this enzyme is indicative of heart attack.
B.
To determine: The origin of left arm pain and increased heart rate.
Introduction: A disorder is the dysregulation or disruption of the structure of the body or function. This is due to the effect of a pathological organism or condition inside the body.
B.

Explanation of Solution
The presence of a clot or plaque can cut off the oxygen supply of the lungs to the heart. Left arm pain is one of the common symptoms of heart attack. The nerves that branch from heart are present on the right side and the arteries that bring blood to the heart are on left side. The hindrance in the blood reaching the heart can cause pain in the left side and also increase blood pressure due to increased stress on heart to pump blood in the body. The cardiac enzymes activate parts of vagus nerve that is attached to the heart add triggers the hindbrain to produce nausea like effects.
C.
To determine: The significance of the ST segment and elevation in troponin I levels.
Introduction: Diseases like cardiovascular disorders, type II diabetes cannot be classified under one cause, as they are a result of several abnormalities like excess weight, obesity, sedentary lifestyle, high-cholesterol diet and so on. These ailments are interconnected and lead to the gradual development of chronic diseases.
C.

Explanation of Solution
The ST elevation is considered important if the vertical distance inside the ECG trace and the baseline at a point 0.04 seconds after the presence of J-point is at least 0.1 microvolt’s. This represents the interval between the ventricular depolarization anddepolarization and so the elevation is an abnormality that is linked to myocardial ischemia or infarction. The elevation of the cardiac troponin I level indicates the presence of an underlying myocardial injury. The elevation of the troponin enzyme can also indicate the acute pulmonary embolism, heart failure, myocarditis or end stage renal disease.
D.
To determine: The relation between the actions of aspirin, morphine, and oxygen to treatment of man’s condition.
Introduction: Among the blood vessels, the pulmonary artery, vein and aorta form the largest and most important vessel system the cardiovascular system is made of different components. The heart constitutes the primary organs of the system and the arteries, veins, and blood capillariesfrom the associated structures of the cardiovascular system.
D.

Explanation of Solution
Aspirin is majorly used as an analgesic to treat pain from aches and fever. Aspirin is also used as a blood thinner to prevent the blood from clotting during myocardial infarction. Morphine is a pain reliever that helps to reduce the pain in the left arm and in the chest arising from heart attack. Oxygen is given to meet the body’s requirements for oxygen as the blood from the heart is interrupted to reach the body’s tissues from clot or plaque in the arteries.
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Chapter 19 Solutions
Essentials of Pathophysiology: Concepts of Altered States
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