Genotyping: A low-cost method that checks for known genetic variants\u2014similar to skimming a book for typos.<\/p>\n<\/li>\n
Sequencing: A full reading of every DNA base\u2014like proofreading the entire book word-for-word.<\/p>\n<\/li>\n<\/ul>\n
Test accuracy varies based on the method, number of variants studied, and company standards.<\/p>\n
![\"According](\"https:\/\/www.europesays.com\/uk\/wp-content\/uploads\/2025\/06\/5-1-1024x647.jpg\"\/)
Cardiovascular risks
\nTypes of Genetic Tests for Heart Disease<\/p>\n
The AHA classifies DNA tests for cardiovascular diseases into three types:<\/p>\n
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Monogenic Disease Tests:
These rare, single-gene conditions include:<\/p>\n- \n
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Dyslipidemias: Extremely high LDL cholesterol levels<\/p>\n<\/li>\n
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Cardiomyopathies: Heart muscle diseases<\/p>\n<\/li>\n
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Thoracic Aortic Disease: Enlargement or rupture of the aorta<\/p>\n<\/li>\n
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Arrhythmic Disorders: Life-threatening irregular heartbeats<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
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Polygenic Disease Tests:
These assess risk for more common conditions like:<\/p>\n- \n
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Coronary artery disease<\/p>\n<\/li>\n
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High blood pressure<\/p>\n<\/li>\n
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Atrial fibrillation<\/p>\n<\/li>\n<\/ul>\n
Results are combined into a Polygenic Risk Score, ranking your genetic risk percentile\u2014but not giving a direct probability of disease.<\/p>\n<\/li>\n
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Pharmacogenetic Tests:
These predict drug responses. For instance, about 30% of Americans don\u2019t respond well to Clopidogrel (Plavix) due to the CYP2C19 gene variant, which increases the risk of blood clots after heart attacks.<\/p>\n<\/li>\n<\/ol>\nLimitations and Racial Bias<\/p>\n
Most genetic data come from individuals of European descent, which limits accuracy for people of other ancestries. This increases the likelihood of \u201cuncertain significance\u201d results among non-Europeans.<\/p>\n
![\"Despite](\"data:image\/svg+xml,%3Csvg%20xmlns=\")
Most genetic data come from individuals of European descent, which limits accuracy for people of other ancestries. This increases the likelihood of \u201cuncertain significance\u201d results among non-Europeans.
\nConfirming Results with Medical Testing<\/p>\nIf a test detects a pathogenic variant, the AHA strongly recommends clinical confirmation via doctor-ordered tests. These may include cholesterol screening, stress testing, or heart imaging. A referral to a genetic counselor might follow, including family testing.<\/p>\n
Lifestyle Still Matters Most<\/p>\n
Even with genetic risk, diet, exercise, and lifestyle choices have a greater impact on heart disease. If you have a family history of heart problems before age 50, consult a doctor\u2014insurance often covers clinically ordered genetic testing.<\/p>\n
In conclusion, while the at-home DNA test industry booms, medical validation remains crucial\u2014especially when dealing with complex conditions like cardiovascular disease.<\/p>\n","protected":false},"excerpt":{"rendered":"AHA Questions DNA Test Accuracy Many companies now offer tests specifically targeting heart disease risk. However, the American…\n","protected":false},"author":2,"featured_media":217948,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3846],"tags":[86307,58941,267,70,16,15],"class_list":{"0":"post-217947","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-genetics","8":"tag-disease-risk","9":"tag-dna-test","10":"tag-genetics","11":"tag-science","12":"tag-uk","13":"tag-united-kingdom"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/114753983414725698","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/217947","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=217947"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/217947\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/217948"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=217947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=217947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=217947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- \n
- \n
![\"Despite](\"https:\/\/www.europesays.com\/uk\/wp-content\/uploads\/2025\/06\/0-8.jpg\"\/)
Most genetic data come from individuals of European descent, which limits accuracy for people of other ancestries. This increases the likelihood of \u201cuncertain significance\u201d results among non-Europeans.