The best replacement for ekg is ecg.

The best alternatives to ekg are rated as following:
★★★★★  ecg
★★★★  echocardiogram
★★★  echo
★★★  eeg
★★  stress test
★  electrocardiogram
★  telemetry
  phlebotomy
  angiogram
  abnormal ekg
  rhythm strip
  holter monitor
  10 lead ekg
  3 lead
  ultrasound heart
  emg
  ekg
  12 lead ekg
  ecg)
  nuclear stress test
  stress ekg

Your alternative for ekg is not listed? Suggest!
Speaking about ekg, one probably shouldn't forget about lvh.

Other search terms related to ekg and their ratings are:
★★★★★ lvh
★★ mi
★ pericarditis
★ ischemia
You have in mind a companion for ekg and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of ekg in all years. Click on graph for more.
ekg
ecg
echocardiogram