What are blood enzyme and troponin levels before, after, during a heart attack?

Normal,then elevated. Cardiac markers including ckmb and troponins measure damage to the heart muscle which occurs in a heart attack - the damaged/dying muscle will leak these into the serum which can be measured as blood tests. They start off "negative" - in the reference range - and then 4-6 hrs after the start of the heart attack they begin to rise - will eventually peak and over several days return to normal.

Related Questions

ARE there any blood tests such as troponin that remain elevated weeks to months or even years after a heart attack??

In general there are. no chemical markers that remain elevated more than about two weeks after an infarct. EKG changes do progress over a longer time course. There can be elevations of some markers that are unrelated to ongoing myocardial damage and can be confusing to less experienced health care providers. For instance, troponin can be elevated from CLL or pneumonia which are unrelated to the heart. Read more...

Would normal troponin 1, myoglobin, ck-mb & creatine kinease levels 100% rule out heart attack?

You have anxiety. You do not have heart troubles. The tests are negative because this is not your heart. Any good doctor can tell you this. You are carrying your stress in your chest muscles and not breathing well. Your heart is fine. Read more...

Thrombosis rca at p/mortem. No heart attack. Deceased died from sepsis complications. How possible to hav thrombosis? No H/Attack. Troponin level normal?

DIC? Hypotensive? Hi. Sepsis is awful as you know from this case. Sepsis is accompanied by hypotension (low blood pressure), poor organ perfusion, and often disseminated intravascular coagulation (DIC = initiation of clotting cascade). While sepsis is the killer, it's not hard to picture the low blood pressure, poor perfusion, and activated clotting pathway causing a thrombosis in the RCA right at time of death. Read more...

What are other reasons other than heart attack for increased level of troponin?

Any heart problem. Troponin is an enzyme released by damaged heart muscle. While the major cause is a heart attack, and large increases are usually due to this, almost any condition affecting the heart can cause small increases. Viral infections of the heart, pulmonary embolus or medial procedures such as angioplasty often result in increases of troponin. Read more...
Many. Abnormal values have been described in non-coronary conditions like myocarditis, pulmonary embolism, acute heart failure, septic shock, and as a result of cardiotoxic drugs as well as after therapeutic procedures like coronary angioplasty, electrophysiological ablations, or electrical cardioversions. It's also frequently seen in dialysis or severe kidney disease patients. Read more...

Why was my younger brother rushed to hospital for emergent heart catheterization after severe crushing chest pain. Didn't have heart attack BUT his troponin level was high? Got discharged 2 days later.

Concern. For blocked vessels and subsequent muscle damage to the heart. If there was no surgery, it suggests that it is safe to manage his problem medically. An elevated troponin suggests some heart damage which can be assessed by an echo and maybe a followup with a stress test. All the best. Read more...
My understanding is. that if he had these symptoms and his serial troponins were high,then he by definition DID have a heart attack,despitewhat the catheterization showed. This would be spasm of the coronaries,not blockage. It is called Prinzmetal's angina and can cause a heart attack with clean coronaries. Read more...