A flat is an apartment or small home that does not have any stairs. It is flat, that is, all on one level.     Flet     From the Scottish word flet, meaniâ¦ng the inner part of a house.
Bradycardia in an adult is any heart rate less than 60 beats per minute (BPM), although symptoms usually manifest only for heart rates less than 50. The word bradycardia is from the Greek Î²ÏÎ±Î´ÏÏ, bradys slow, and ÎºÎ±ÏÎ´Î¯Î±, kardia, heart.
Approach to Pediatric Tachycardia. Tachycardia is an abnormally rapid heart rate. In adults, this is usually defined as >100 beats per minute (bpm). In pediatrics, the normal heart rate varies with age (see Table 1). Therefore, in children, the definition of tachycardia is age dependent. Presentation varies with underlying cause, but most often the symptoms are vague and non-specific, such as âfussinessâ or âdifficulty feedingâ.