A 45-year-old man with a history of paroxysmal atrial fibrillation presents to the ED with acute onset of severe pain and paresthesias in his right calf. On exam, you note lower extremity pallor and an absent dorsalis pedis pulse. Which of the following is the most likely diagnosis?A) Arterial atheroembolismB) Arterial thromboembolismC) Arterial thrombosisD) Arterial vasospasm

Arterial thromboembolism

Explanation:

Arterial embolism can be defined as the sudden hinderance of the blood flow  to an organ or body part due to the embolus which to the wall of the artery.

This clot can lead to more serious in the future. The arterial embolism occurs due to the consumption of food rich in fat and cholesterol.

It is the main cause of the myocardial infraction and vasoconstriction.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."