### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Had preop ekg which showed pvcs. cardiology consult has been scheduled for next week. I am 63 yrs old and take only Synthyroid. Lab was wnl 2 mo ago. I do have history of mitral valve prolapse, but have never had a problem. PVCs are more freq now and just the fact Im having them on a more regular basis scares me. THis am they have been quite active. Advise  what to do till my first cardiology appt.

### output:

Hello and thank you for using ChatDoctorI carefully read your question and I understand your concern. But you should not worry. I will try to explain you something about premature ventricular contractions and give you some advises. Premature contractions are electrical impulses that generates in heart muscle, in a part different from normal sinus rhythm. This cause a premature contraction, that you feel like an escaped beat. Premature ventricular contractions might have different causes. They might happen in a quite normal heart, in a heart with valve problems, in ischemic heart disease etc. All sow there are a lot of different pathologies that might rise they're frequency like thyroid gland problems, anemia. The main issue according to PVC is to know they're frequency and to exclude secondary causes. So, you don't have to worry until your next visit. During this time I will recommend you to avoid products with caffeine like Coca-Cola, coffee, energy Chat Doctor. If I was your treating doctor I will recommend a full blood check up analyze to exclude anemia, your thyroid hormones as you have such problems.  Then I will recommend a rhythm holder monitoring to see the real frequency of this PVC during 24h. A stress test if it is possible to exclude ischemic heart disease and only then to decide if we should treat medically this premature beats or no. Hope I was a little helpful. Wish you good healthiest regards.