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Lam, James
Morgan City, LA
Cardiologist - Dr. James Lam, a Hong Kong native, graduated Summa Cum Laude in engineering from the University of Pennsylvania...
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Your Guide to:
Basic Cardiovascular Testing
 what is basic cardiovascular testing?
There are some basic cardiology diagnosic tests that your doctor may run depending upon your symptoms and concerns. These tests provide baseline information to begin determining the cause of any problems you may be experiencing.
Most people think that the word “cardiovascular” refers to the heart only. However, it is a term used to describe any route the blood travels as it circulates through the body. Therefore, you could even be referred for basic cardiovascular testing if you have pain in your legs or elevated blood pressure.
Some tests may be ordered that seem unrelated to your concerns. Remember we are checking to be sure that your heart is stable and that there aren’t any underlying severe causes for your symptoms.
how do I prepare for my test(s)?
Basic cardiac tests require little preparation. It is recommended that you wear comfortable, two-piece clothing, and bring or wear walking shoes. You will be asked to change into a gown for most tests.
Since some bloodwork requires fasting, it may be necessary for you to fast.
Also be prepared to be at our office for several hours in case multiple tests need to be performed the same day. You may wish to bring a snack.
what is an EKG or ECG?
Electrocardiography is a technique used to record the electrical signals that control the rhythm of your heartbeat. An electrocardiogram is a test that uses this technology. This test is also called an ECG or EKG.
An ECG can detect things like current and past heart attacks, blockages, a thick heart wall, certain electrolyte imbalances, and even changes that have been brought on by some medications that you are taking or that you have taken in the past.
The ECG is painless. You will have to disrobe, and several electrodes will be placed on your chest. These electrodes will have to stick to your skin, so it may be necessary to shave a few small areas of your chest. You will lie down if possible for a few minutes while the test is recorded on graph paper.
what is a treadmill test?
The treadmill is an exercise test used to evaluate your heart function along with your pulse and blood pressure responses to activity. The physician may use the test to determine if current medications are working correctly, if you need further testing for blockages, or how your heart responds to increased activity.
You will have to remove your shirt for the test, and a gown will be provided. Since several electrodes will be placed on your chest, it may be necessary to shave a few small areas in order for the electrodes to stick. You will also have an electrode base strapped to your waist with a belt. These tools will help us to monitor your heart as you walk on the treadmill.
The treadmill will start off at a minimal speed with a slight incline. It will then increase speed and incline every three minutes. A tech will inform you of all changes in speed and inclines and will take your blood pressure several times during and after the test. It is recommended that you walk the treadmill in comfortable walking shoes.
what is a Holter monitor?
The Holter monitor records electrical signals of the heart just like an ECG, but it does so over a 24-hour period. This test will monitor your heart rhythm during regular daily activities to see how your heart responds to activity, rest and/or medication changes.
This monitor is about the size of your hand and can be strapped to a belt loop or shoulder strap. The monitor has seven electrodes that will be placed on your chest. These electrodes will have to be secured to your skin with tape, so it may be necessary to shave a few small areas of your chest.
You will not be able to shower or bathe during the 24-hour period that the monitor is being worn.
The monitor must be returned as soon as possible for the physician to evaluate the rhythms recorded on it. You will be given further instructions at the time of the placement of this monitor.
is there any preliminary evaluation necessary?
Before you see the physician you will be weighed, and your blood pressure and pulse will be noted. We will also discuss all of your current medications with you and make an up-to-date record of the discussion. At this time, you should tell the nurse about any symptoms or concerns that you have.
It is very important that you give a complete and accurate medical history to help us diagnose and treat your condition. Please bring copies of any tests that were ordered by another physician.
why do I need bloodwork?
Bloodwork is a very important part of diagnosing and monitoring certain medical problems. Blood results can help the physician determine which organs in your body may need treatment, or if levels in your blood need medication to be regulated. It is very important that you understand which blood tests are being done and what those results tell the physician.
Blood tests have to be specifically ordered according to what the physician is looking for; therefore, we will only get results of the specific tests that are ordered. If there is a certain condition you are concerned about, please discuss this with your physician/practitioner before your blood is drawn so that appropriate bloodwork can be ordered to address your concerns.
It is not necessary to fast for all bloodwork. Please ask if the bloodwork ordered for you requires that you fast.
Please note that this Web site cannot replace regular discussions with your doctor or healthcare professional.
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