Heart attacks and sudden dearth run in family. Dad had a CT calcium score of 1, normal stress test. Should he receive other testing?

Absolutely, focus on. The primary drivers of atherosclerosis/arteriosclerosis: optimize low density lipoprotein particle concentrations by NMR to <700 nmol/L, Large-HDL to >9 μmol/L, HbA1c to <5.0%, typical resting systolic BP to <120 mmHg, etc. While glad to hear low score of 1, it demonstrates (if accurate) presence of advanced arterial disease (calcium always within base of oldest plaque)-Study my HealthTap answers.
If doctor recommends. Make sure your dad goes for scheduled check ups, follows his doctors advise, eats well balanced diet, along with regular excesses, controls cholesterol, blood pressure and sugar levels, which he can do, that reduces his chance of bad out come.

Related Questions

Dad has pain over heart. Hurts when pressed on, no other heart attack symptoms. Had a stress test which was neg and calcium score of 0. No worries?

Chest pain. Pain with tactile component is generally not cardiac in nature. The negative studies support that premise in this patient.
Chest pain. Any pain that can be reproduced by pressing locally is unlikely to be of cardiac origin. Low calcium score and negative stress test most likely mean absence of cardiac problem. However if pain persists, we must find a reason. Please note that stress test is not 100% accurate. You must seek medical help if symptoms persist.

Chest pain, SOB, nausea - Chance of heart attack with normal chest xray, nuclear stress test, calcium score? Echo slightly low EF of 48%.

Talk to your cardiol. I recommend you speak with your cardiologist as it sounds like you have one, given studies that were done. There are risk modifications that can be done of course. Sounds like you have good contacts with specialists already!

Are there any preventive tests to show if artery is clogged? My mom died fatal heart attack she had everything but mra or catheterization. Dad wants to make sure his arteries ok. Ekg stress test done

Yes. You can do a ct angio or ct MRI to assess vascular disease.
Most fatal MI's - Not usually caused by progressive obstruction, but by rupture of an existing plaque. This involves inflammatory response in the arterial wall, and the subsequent formation of an obstructive clot. Tobacco and other factors can greatly increase the likelihood of this occurrence; evaluation needs to be done by a cardiologist, and all risk factors should be identified and reduced.
Partially. Stress testing is the common with ekg echo or nuclear. Ct with calcium scoring has become popular but may show calcium without any blockage or may have blockage with no calcium. Newer faster ct is expensive but evolving. Cath is most accurate but invasive and costly.

Ct angio score of 0, three negative stress echo test in 5 years, normal echo, normal event monitor low hdl, dad heart attack at 50. Do I have blockage?

Tests. Given your test results you do not appear likely to have calcified obstructive coronary artery disease at the present time. If you have plaque in your coronaries it doesn't appear to be highly obstructive at the present. We can't say there are no plaques.
Unlikely. The investigations you had do not suggest any blockage. Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco or alcohol in any form.
Cath Angio. Would be the test that will give you the answer. So far your tests are all encouraging and pleading against early coronary disease. Lifestyle risk factor modification and keeping a low threshold for possible heart related symptoms will be key (s) in the medium to long term prognosis.