Which of the following is always a component of allergies?
Out of all the answers shown above the one that best represents the one that is always a component of allergies is answer choice A) histamine.
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The diagnostic tool that would be helpful in diagnosing this would be echocardiogram. It is the most suited tool because it the functions and the structure of the ventricles can be clearly or easily observed. It can show dysrhythmias and the changes that happens in the left ventricular hypertrophy.
Answer:
The answer is C
Explanation:
I just did my test its right :)