1. In order to calculate heart rate accurately by the R-to-R interval method, the patient must have a regular rhythm. a. True b. False 2. Second-degree heart block, Mobitz Type I, may be transient and...

1. In order to calculate heart rate accurately by the R-to-R interval method, the patient must have a regular rhythm.

a. True b. False

2. Second-degree heart block, Mobitz Type I, may be transient and self-correcting.

a. True b. False

3. Cardiovascular disease remains the number one cause of death in the United States.

a. False                 b. True