A 55-year-old truck driver with obstructive sleep apnea has diastolic heart failure. An echocardiogram demonstrates significant atrial enlargement. What portion of his electrocardiogram would likely be abnormal?

A) S wave
B) R wave
C) P wave
D) T wave
E) QRS complex

C) P wave

Explanation:

Sleep apnea can be described as a potentially serious sleep disorder in which breathing repeatedly stops and starts.

The Obstructive sleep apnea is a type or example of sleep apnea in which an individual can't breathe normally because of upper airway obstruction during sleep. This obstruction could be  complete or partial obstructions.

It should be understood that, an echocardiogram uses sound waves to produce images of your heart.

In this case, the P wave portion of the electrocardiogram will be abnormal. This is because, the P wave is the result of atrial depolarization and would therefore  have changes associated with atrial enlargement.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

helicase, i think thats it