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Doctor insights on: Why Does One Have To Fast Before A Coronary Angiogram

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Why does one have to fast before a coronary angiogram?

Why does one have to fast before a coronary angiogram?

Nausea: Iodinated contrast can cause nause. Since you are done lying down, if you vomit you are at greater risk for having particles go into the airway. In addition, if you need any sedation to be comfortable during the examine, you must also be with an empty stomach for the same concerns. ...Read more

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Angiogram (Definition)

An angiogram is a picture of the inside of ones blood vessel (vein or artery) created by injecting a clear liquid (radiopaque dye) which appears to be white (or ...Read more


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Why does it take 12hrs from a suspected heart attack to take a blood test to if it was a heart attack or not?

Why does it take 12hrs from a suspected heart attack to take a blood test to if it was a heart attack or not?

See below...: As the heart muscle dies due to lack of oxygen (ischemia), different cardiac muscle proteins and enzymes are released in the blood at different times. The ultra sensitive troponin test is positive in about 80% of people with MI in 2-3 hours of presentation. However, if the initial test is negative, then the troponin levels must be followed over time to see if they are rising to the MI level. ...Read more

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If Heart Cath show blockages and I get a stent, does that mean I will be admitted to ICU ?

If Heart Cath show blockages and I get a stent, does that mean I will be admitted to ICU ?

Most likely: In our facility all patients post intervention are admitted overnight to our ICU part of the CCU. This varies across the country and in different facilities. Call the nursing supervisor in your local hospital and ask this question. She/He will let you know what their standard procedure is for this clinical scenario. ...Read more

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Why would my cardiologist want me to do a nuclear walking treadmill vs a regular one? Will the dye be dangerous? How could this take 3 full hours?

Why would my cardiologist want me to do a nuclear walking treadmill vs a regular one? Will the dye be dangerous?
How could this take 3 full hours?

Women and CAD: Can't be sure, but I suspect your cardiologist recommended a nuclear stress test for to help detect coronary artery disease (CAD). In women, traditional stress test is less helpful than a nuclear stress test in diagnosing heart disease. It takes longer because contrast is used is used. Suggest you discuss the procedure and possible complications with your cardiologist. ...Read more

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Why and how often should one get a nuclear stress test after a stent?

Why and how often should one get a nuclear stress test after a stent?

Tests: Tests are performed when information is required to aid decision making. If a stent patient is doing well, there may be no reason for stress testing. ...Read more

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During a heart transplant, after you take out an old heart and put a new one in, what happens if you cannot get it to beat for whatever reason? Death?

During a heart transplant, after you take out an old heart and put a new one in, what happens if you cannot get it to beat for whatever reason? Death?

New Heart: During a heart transplant, the patient is put on a bypass machine. What this means is that the patient's blood is pumped through an external device, and then back into the patient. Kind of like an external heart. The patient is taken off the bypass machine with a new heart that beats, generally speaking. ...Read more

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Should there be a long time between first heart attack and when you get angiography done?

Should there be a long time between first heart attack and when you get angiography done?

Not necessarily: A cardiac angiography is often performed in close temporal proximity to a "heart attack" or myocardial infarction/injury. Cardiac angiography is a basic diagnostic tool that often provides invaluable information regarding the nature of an ischemic event, (i.e.Identify culprit lesions), and it can also be therapeutic as well when combined with an intervention, such as angioplasty or stent placement. ...Read more

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If I wait too long to get a stent for my renal artery stenosis, what will happen to my kidneys?

If I wait too long to get a stent for my renal artery stenosis, what will happen to my kidneys?

Depends: Stenting of the renal arteries has been controversial. Definitely, no intervention needs to be considered if the narrowing is less than 60%. The setting where stenting has definitely been shown to be beneficial is when the kidney function is deteriorating and/or the kidney size is shrinking. Stenting doesn't always improve the blood pressure or kidney function- hence the controversy. ...Read more

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If someone was a fit athlete and had a low resting heart rate of say 30 and had a pacemaker for any reason to make it 60 what would happen?

If someone was a fit athlete and had a low resting heart rate of say 30 and had a pacemaker for any reason to make it 60 what would happen?

That's too low.: Even for a fit athlete, a resting heart rate of 30 is just too slow. The HR in an elite athlete may dip into the mid-40s, but any lower would make me think that there's some pathology in the rhythm system of the heart for which a pacemaker might actually be required. With this HR, is there any lightheadedness, shortness of breath, passing out? ...Read more

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Should I be concerned I have an aneurysm after 3 months of very high BP when active? Does it take longer time for an aneurysm to develop?

Should I be concerned I have an aneurysm after 3 months of very high BP when active? Does it take longer time for an aneurysm to develop?

?: How high is high? A higher blood pressure is normal when you are active. I wouldn't be too concerned about developing an aneurysm at your age. Aneurysms take a very long time to develop after years of untreated hypertension. You are on metropolol which is very useful. If you still are hypertensive on metoprolol then perhaps a dosage adjustment or additional medication is needed. ...Read more

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Is it normal to have fast heart beats for a while if you got surprised or shocked ?

Is it normal to have fast heart beats for a while if you got surprised or shocked ?

Yes: Most of the time adrenaline will increase your heart rate for a short time if you are surprised but it should go away gradually and go back to normal. If it happens at other times and lasts for a long time, that is a different story. ...Read more

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Scheduled for an ablation to fix what they " think" is svt. It's never been recorded as that before but i get a racing heart at times. Yes or no?

Scheduled  for an ablation to fix what they " think" is svt. It's never been recorded as that before but i get a racing heart at times. Yes or no?

SVT?: Ask your doctor if they monitored you will enough at this point with haltors or events recorder to confirm one type versesw another? ...Read more

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I would like to know what would cause you to have your heart feel like its skipping a beat after eating? It doesn't happen after every meal. Once in a

I would like to know what would cause you to have your heart feel like its skipping a beat after eating? It doesn't happen after every meal. Once in a

Interesting question: Generally speaking, foods don't cause arrhythmias unless you're eating foods with caffeine (cocoa, cola, coffee etc). Why not get a 24 hour recorder (holter monitor) from your doctor, eat and try to reproduce your symptoms, carefully recording what you ate, exactly when, and what you felt. Then he/she can correlate exactly what your rhythm is with your symptoms & food. You don't smoke, do you? ...Read more

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What to do if I take medication for a heart rhythm condition, what will they most likely test my blood for?

What to do if I take medication for a heart rhythm condition, what will they most likely test my blood for?

Medication: Depending on the medication being monitored the tests may be for levels of the drug in the blood or liver, kidney , thyroid or other tests to evaluate side effects of the drug(s). ...Read more

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If i had a echo and it said narrow vavle and then a mra that says min leaking why do the what to do a nuclear stress test tomorrow?

Symptoms: If you have questions like that which are quite reasonable, you should ask your doctor why he/she needs the test and what is to be learned from it. ...Read more

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How much time after you've had a heart attack can doctors diagnose that you had one?

How much time after you've had a heart attack can doctors diagnose that you had one?

It depends: EKGs after heart attacks may show the "scar" for many years, but some EKGs normalize over time, depending on the size and location of the heart attack. On the other hand, EKGs read as "heart attacks" may be false positives and the heart be completely normal. Kind of confusing, isn't it? Ask the same question with EKG in hand to your cardiologist and he will be able to explain. ...Read more

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What can lead to a heart murmur and why would I have one at age 40?

What can lead to a heart murmur and why would I have one at age 40?

Murmur: A heart murmur. A murmur is just noise. Sometimes serious problems cause a murmur many times a murmur is caused by normal flow. Patients often misctranslate what the dr. Tells them. ...Read more

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Help one year a go i had a heart cath done negative for any blockage a new doctor i seen twice he whants to do another one is it a good id or not ?

No: It is highly unlikely that another cath will uncover new blockages if the one performed last year was truly angiographically normal. If additional evaluation is required, such as for spasm, then it may not be unreasonable. However, this sounds a little off. ...Read more

Coronary Angiogram (Definition)

To evaluate heart arteries for structure & evaluation of cholesterol plaque in arteries. Can ...Read more


Dr. Krishna Kumar
5 doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more