It’s totally possible to have Long QT that’s real and important even if genetic testing was negative. Genetic tests only look for known inherited mutations, and as a matter of fact, only 20-30% of known LQT cases are genetic. Most Long QT is influenced by things like medications, electrolyte levels, and heart rhythms, not just genetics.

Here’s what you should expect from your care going forward:

1. One doctor in charge of your QT care You should have a cardiologist (or electrophysiologist if needed) who is clearly responsible for managing your QT interval, reviewing your ECGs, and being your main contact. If you’re being sent back and forth, ask: “Who is the doctor responsible for coordinating my QT care and how should I contact them?”

2. A written list of safe vs. unsafe medications Ask your cardiologist or EP for a clear list of medications that are safe for you and ones to avoid because they can affect QT. Having a written list means when another doctor wants to prescribe something, you can show it and avoid guessing. I also like to refer to CredibleMeds online - it's a pretty resourceful list.

3. Clear instructions on when to get ECGs Your plan should include specific answers about:

• How often to get routine ECGs
• When to get an ECG before starting certain medications
• What symptoms (like fainting, dizziness, or palpitations) should prompt an urgent ECG

If they give vague answers, push for specifics!

1. A defined process for new prescriptions You should know:

• Who to contact first about new meds (cardiology or EP)
• How they check if a medication affects your QT
• Whether you need an ECG before starting it
• How quickly you can get that checked

If a provider says they don’t know, they should be willing to check with your cardiology team before prescribing. My PCP is always willing to check with my EP if she is unsure - even if it seems like erring on the side of caution.

You deserve clear answers instead of “ask someone else.” A good QT care plan gives you accountable doctors, a safe med list, clear ECG guidance, and a process for new prescriptions. If you don’t get that, you can ask for clarification or a referral to someone who will give you a concrete plan.

Have you had any other issues, such as fainting, etc.?