Question

an arrhythmia causes the heart to ____________ its normal rhythm.
maintain
slow down
speed up
not have
question 22
which prefixes, when combined with the root and word ending -cardia, me
the opposite of each other?
bi-; tri-
epi-; pan-
brady-; tachy-
endo-; oligo-

Explanation:

An arrhythmia is a condition where the heart's rhythm is abnormal. "Maintain" implies keeping the normal rhythm, which is incorrect. "Slow down" and "speed up" are specific types of abnormal rhythms but do not fully capture the essence of arrhythmia. "Not have" its normal rhythm accurately describes arrhythmia as a disruption of the normal heart rhythm.

For the second question, "brady -" means slow and "tachy -" means fast. When combined with "-cardia" (related to the heart), "bradycardia" (slow heart rate) and "tachycardia" (fast heart rate) are opposites. "Bi -" (two) and "tri -" (three) are not opposites in a medical heart - related context. "Epi -" (upon) and "pan -" (all) are not opposites. "Endo -" (within) and "oligo -" (few) are not opposites.

Answer:

For the first question: not have.
For the second question: brady - ; tachy -.