10 Heart Health Blood Tests Worth Knowing After 40 | Healos™
10 Heart Health Blood Tests Worth Knowing After 40
Most people's heart check-up comes down to one line on a lab report: cholesterol. It matters, but after 40 it's only part of the picture. Some of the most useful heart tests aren't on a standard panel unless you ask.
Here is the short answer. After 40, a standard cholesterol test isn't the whole picture. The blood tests most worth knowing include LDL and non-HDL cholesterol, ApoB, a one-time lipoprotein(a), HbA1c, kidney function and urine albumin, and in some people hs-CRP or NT-proBNP. Together with blood pressure and waist size, they show where your risk really stands and what to fix first. Your doctor decides which you need.
Modern medicine is at its best when it comes to finding problems and saving lives in an emergency. But most heart disease risk builds quietly over the ten or twenty years before the first symptom. That window depends on timely screening, healthy habits kept up over time, and the right preventive care.
简短的答案： 大多数人的心脏体检最后只剩化验单上的一行：胆固醇。它很重要，但 40 岁以后只是一部分；有些最有用的心脏检测，不主动要求就不在常规项目里。
40 岁以后，常规胆固醇检查不是全貌：最值得了解的包括 LDL 和非 HDL 胆固醇、ApoB、一次性的脂蛋白(a)、HbA1c、肾功能和尿白蛋白，部分人还需要超敏 C 反应蛋白或 NT-proBNP；配合血压和腰围，能显示风险到底在哪里、该先改什么，需要哪些由医生决定。
现代医学最擅长的是发现问题和抢救；而心脏病的大部分风险，是在症状出现前的十几、二十年里一点点积累的。那段时间，靠的是及时筛查、坚持优良生活方式，和适当的保健预防。
Tests 1–3: the cholesterol family
1. LDL cholesterol. The main plaque-building particle and the usual treatment target. After a heart attack or stroke, most people aim for below about 1.8 mmol/L (see statins for life).
2. Non-HDL cholesterol. Total cholesterol minus HDL: it captures all the artery-clogging particles, and it's accurate even if you haven't fasted. Canadian guidelines accept it as an alternative target.
3. ApoB. Counts the number of plaque-forming particles directly. It's especially useful when triglycerides are high or with diabetes, where LDL can look reassuring while particle numbers are high.
检测 1–3：胆固醇家族：
1. LDL 胆固醇：主要的致斑块颗粒，也是常用的治疗目标；心梗或卒中后多数人目标约低于 1.8 mmol/L。
2. 非 HDL 胆固醇：总胆固醇减去 HDL，涵盖所有致动脉堵塞的颗粒，不空腹也准确，加拿大指南认可它作为替代目标。
3. ApoB：直接计数致斑块颗粒的数量；甘油三酯高或有糖尿病时尤其有用，这时 LDL 看起来令人放心，颗粒数却可能很高。
Test 4: lipoprotein(a), the one most people never get
4. Lipoprotein(a), once. Lp(a) is a cholesterol-carrying particle whose level is set mostly by your genes, and it isn't part of a standard panel. About one in five people has an elevated level (Tsimikas et al., JACC, 2018), which raises the risk of heart attack, stroke and aortic valve narrowing. Canadian guidelines recommend measuring it once in adulthood (Pearson et al., Canadian Journal of Cardiology, 2021).
A high Lp(a) doesn't change with diet, but it changes how aggressively your doctor treats everything else, and it's a reason to tell your siblings and children (see your parent had an early heart attack). In some provinces it may not be publicly covered; ask about the cost.
检测 4：脂蛋白(a)，多数人从没查过的那一项：
4. 脂蛋白(a)，测一次：Lp(a) 是一种携带胆固醇的颗粒，水平主要由基因决定，不在常规血脂里；约五分之一的人偏高（JACC 2018），会增加心梗、卒中和主动脉瓣狭窄的风险。加拿大指南建议成年后测一次（Can J Cardiol 2021）。Lp(a) 高不会因饮食改变，但会改变医生处理其他风险的力度，也是告诉兄弟姐妹和子女的理由。部分省份可能不在公费范围内，请询问费用。
Tests 5–7: sugar, kidneys and inflammation
5. HbA1c (or fasting glucose). Your average blood sugar over about three months. Diabetes Canada defines prediabetes as 6.0–6.4% and diabetes as 6.5% or higher. Both raise heart risk, and prediabetes is a window to act.
6. Kidney function: eGFR and urine albumin-to-creatinine ratio. The kidneys and heart are closely linked. Protein leaking into the urine is an early warning sign of blood vessel damage, especially with diabetes or high blood pressure, and it often appears before eGFR falls.
7. hs-CRP. A sensitive marker of low-grade inflammation, the shared root of heart disease (see one inflammation, three hearts). In the JUPITER trial of people with normal LDL but raised hs-CRP, a statin reduced major cardiovascular events by about 44% (Ridker et al., NEJM, 2008). It's most useful when your risk is borderline; a recent cold or injury can raise it temporarily.
检测 5–7：血糖、肾脏和炎症：
5. HbA1c（或空腹血糖）：约三个月的平均血糖；加拿大糖尿病学会定义 6.0–6.4% 为糖尿病前期、6.5% 及以上为糖尿病，两者都增加心脏风险，糖尿病前期是行动的窗口。
6. 肾功能：eGFR 和尿白蛋白/肌酐比；肾脏与心脏密切相关，尿中漏出蛋白是血管损伤的早期信号，尤其在糖尿病或高血压时，且常在 eGFR 下降前出现。
7. 超敏 C 反应蛋白：低度炎症的敏感指标，炎症正是心脏病的共同根源；JUPITER 试验中，LDL 正常但 hs-CRP 偏高的人使用他汀，主要心血管事件减少约 44%（NEJM 2008）；风险处于临界时最有用，近期感冒或受伤会暂时升高。
Tests 8–10: the supporting cast
8. NT-proBNP (in selected people). A marker of strain on the heart. It isn't a routine screening test, but it's useful if you have breathlessness, swelling, diabetes with other risks, or known heart disease, and can pick up early heart failure (see heart failure is rising and getting younger).
9. Liver enzymes. Fatty liver disease travels with heart risk, and a baseline helps before starting some medicines.
10. Blood count, ferritin and TSH. Anaemia and low iron cause fatigue and strain the heart; thyroid problems affect cholesterol, heart rhythm and energy.
Beyond blood tests: blood pressure (including home readings), waist size and, for people at intermediate risk, a coronary artery calcium score complete the picture (see preventing heart disease after 50).
检测 8–10：重要的配角：
8. NT-proBNP（部分人）：反映心脏负担的指标，不是常规筛查，但有气短、水肿、糖尿病合并其他风险或已知心脏病时很有用，能发现早期心衰。
9. 肝酶：脂肪肝与心脏风险相伴，开始某些药物前有基线值也有帮助。
10. 血常规、铁蛋白和 TSH：贫血和缺铁会导致疲劳并加重心脏负担，甲状腺问题会影响胆固醇、心律和精力。
验血之外：血压（含家庭读数）、腰围，以及中等风险人群的冠脉钙化积分，能补全整体图景。
How to use your results
Ask for the tests by name if they're not on your usual panel, especially Lp(a), ApoB and urine albumin.
Keep your numbers in one place and track them over time; trends matter more than one result.
Start earlier if a parent or sibling had early heart disease, or if a parent had high blood pressure, high cholesterol or diabetes.
Act on what you find: targets for LDL, blood pressure and blood sugar are set with your doctor, and medication is often part of the plan.
Don't panic over a single value; some markers, like hs-CRP, change with recent illness.
如何使用你的结果： 如果常规项目里没有，就按名称主动要求，尤其是 Lp(a)、ApoB 和尿白蛋白；把数字集中记录并长期追踪，趋势比单次结果更重要；父母或兄弟姐妹早发心脏病，或父母有三高的人要提早开始；根据结果行动：LDL、血压和血糖目标与医生一起设定，药物常是方案的一部分；不要因单个数值恐慌，hs-CRP 等指标会随近期生病变化。
How Healos™ supports long-term heart health
Sovereign Monthly · Protect is built to help you act on your numbers between check-ups. Each month it provides personalised maintenance nutrition built around four cellular nutrients, adjusted to the health profile and medication list you share with us, with regular check-ins that keep your results, blood pressure, sleep and stress in view for your doctor. It renews monthly and can be cancelled any time, or try a single month with no renewal. It's complementary support alongside screening and any prescribed treatment; it doesn't diagnose, treat or prevent any disease.
Healos™ 如何支持长期心脏健康： Sovereign Monthly · Protect 帮助你在两次体检之间根据数字行动：每月提供以四种细胞级营养素为核心、按你提供的健康状况和用药清单调整的个性化维护营养，并定期评估，让检测结果、血压、睡眠和压力始终可见、可带给医生；按月续费、随时取消，也可先试单月、不续费。它是与筛查和处方治疗并行的辅助支持，不诊断、不治疗、不预防任何疾病。
The bottom line
A cholesterol number is only the start. After 40, ask about LDL or non-HDL, ApoB, a one-time Lp(a), HbA1c, kidney function with urine albumin, and in the right situations hs-CRP or NT-proBNP, plus blood pressure, waist and possibly a calcium score. Know your numbers, track them over time and act on them with your doctor.
结论： 一个胆固醇数字只是开始。40 岁以后，请询问 LDL 或非 HDL、ApoB、一次 Lp(a)、HbA1c、肾功能和尿白蛋白，合适时加上 hs-CRP 或 NT-proBNP，再加上血压、腰围，可能还有钙化积分。了解你的数字，长期追踪，并与医生一起据此行动。
Frequently asked questions
What blood tests check heart health? Key ones include LDL and non-HDL cholesterol, ApoB, a one-time lipoprotein(a), HbA1c, kidney function with urine albumin, and in selected people hs-CRP or NT-proBNP, alongside blood pressure and waist size.
Should I get my lipoprotein(a) tested? Canadian guidelines recommend measuring it once in adulthood. About one in five people has a high level, which is largely inherited and changes how aggressively other risks are treated.
What is ApoB and do I need it? ApoB counts the number of plaque-forming particles. It's especially useful with high triglycerides or diabetes, when LDL can underestimate risk.
Is hs-CRP useful for heart risk? It measures low-grade inflammation and is most useful when risk is borderline. In the JUPITER trial, people with normal LDL but raised hs-CRP had about 44% fewer major events on a statin.
常见问题：
哪些验血项目反映心脏健康？LDL 和非 HDL 胆固醇、ApoB、一次 Lp(a)、HbA1c、肾功能和尿白蛋白，部分人加 hs-CRP 或 NT-proBNP，配合血压和腰围。
要查脂蛋白(a) 吗？加拿大指南建议成年后测一次，约五分之一的人偏高，主要遗传。
ApoB 是什么？直接计数致斑块颗粒，甘油三酯高或糖尿病时尤其有用。
hs-CRP 有用吗？反映低度炎症，风险临界时最有用，JUPITER 中 LDL 正常但 hs-CRP 高者用他汀主要事件约少 44%。
References
Pearson GJ, et al. 2021 Canadian Cardiovascular Society Guidelines for the Management of Dyslipidemia. Canadian Journal of Cardiology. 2021;37(8):1129–1150.
Tsimikas S, et al. NHLBI Working Group recommendations to reduce lipoprotein(a)-mediated risk of cardiovascular disease and aortic stenosis. JACC. 2018;71(2):177–192.
Ridker PM, et al. Rosuvastatin to prevent vascular events in men and women with elevated C-reactive protein (JUPITER). New England Journal of Medicine. 2008;359:2195–2207.
Diabetes Canada Clinical Practice Guidelines Expert Committee. Definition, classification and diagnosis of diabetes, prediabetes and metabolic syndrome. Canadian Journal of Diabetes. 2018;42:S10–S15.
