Which term means slow heart rate?

• A. Hematuria
• B. Adverse reaction
• C. Prognosis
• D. Bradycardia

Answer: (D)

Slow heart rate is described as bradycardia. Brady- means slow and cardio- relates to the heart, so bradycardia literally means a slow heart. In adults, a resting heart rate below about 60 beats per minute is often called bradycardia, though athletes may have lower rates without symptoms. The other terms refer to different concepts: hematuria is blood in the urine, an adverse reaction is an unwanted effect to a medication, and prognosis is the expected course of a disease.