Which two types of heart block result in a variable PR interval?
A. Second-degree Mobitz type I and third degree
B. Second-degree Mobitz type I and second-degree Mobitz type II
C. First-degree and second-degree Mobitz type I
D. Second-degree Mobitz type II and third degree
Answer: A
Health Professions
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____________________ are small animals that are usually kept in aquariums or cages
Fill in the blank(s) with correct word
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