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The Pattern of Lengthening PR Intervals and Then a Dropped

question 5

Multiple Choice

The pattern of lengthening PR intervals and then a dropped beat is called a type I second degree block or ____.


Definitions:

Isotope

Forms of a specific chemical element distinguished by having identical proton counts yet varying quantities of neutrons within their cores.

Neutrons

Subatomic particles found in the nucleus of an atom with no electric charge.

Protons

Subatomic particles found in the nucleus of an atom, carrying a positive electrical charge.

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