Which Heart Block Rhythm Has a Constant PR Interval That

question 5

Multiple Choice

Which heart block rhythm has a constant PR interval that measures greater than 0.20 seconds?

• A)First-degree AV block
• B)Second-degree AV block, Mobitz type I
• C)Second-degree AV block, Mobitz type II
• D)Third-degree AV block

---

Definitions:

Angiotensin II

A potent vasoconstrictor involved in blood pressure regulation and fluid balance, formed from angiotensin I through the action of ACE.

Renin Release

The action of the kidneys releasing the enzyme renin into the bloodstream, which plays a crucial role in blood pressure regulation.

Vasodilator Secretion

The release of substances from cells that cause the dilation of blood vessels, increasing blood flow.

Blood Volume

The total amount of blood circulating within an individual's vascular system at any given time.