The presenting problem with Sinus Arrhythmia is that:

For all injuries to the extremities, you must do your best to determine if there is adequate _______ beyond the injury site

Fill in the blank(s) with the appropriate word(s).

As a rule, the less a paramedic uses a particular skill or procedure:

a. the more frequently he should review that skill or procedure. b. his retention of that skill or procedure remains the same. c. the less he needs to practice that skill or procedure. d. the more it is evidence that the skill or procedure may no longer be necessary.