Hi Bettysamny welcome to connect. Yes to both your questions. Today's pacemakers are pretty fancy as to what they can do. I had one for about 10 years and saved my life many times. So I'm pretty familiar with Tachycardia mostly but I have heard they can be used for bradycardia. The basic function is to cause the heart to beat at a certain rate whether faster or slow. And as for an ablation I myself as my heart got worse had a total of 8 ablation while also having the pacemaker. During the n procedure thay have it turned off so it doesn't try and affect what they are trying to accomplish during the ablation.
Are you being advised to get a pacemaker? May I ask what condition you are having to need one? You mentioned both fast or slow I personally hat VT or Vintricular Tachycardia which is the lower part of the heart. Please.feel free to ask any questions you like.