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Sunday, December 25, 2011
Tuesday, December 20, 2011
How to Read an ECG
The electrocardiogram or ECG is a medical device that measures the electrical activities of the heart using electrodes placed in certain positions on the body. Physicians use the information gathered from the device to record the heart rate, myocardial infarctions, arrhythmias, ventricular hypertrophies, atrial enlargements, and bundle branch blocks.
The ECG gives out ten basic pieces of information about the heart. They are the following:
1. Rate. To determine the rate, consider two durations of identical points in a consecutive ECG waveform (R-R interval). Take this duration and divide it into 60. The equation should be: Rate = 60/(R-R interval)
2. Rhythm. This includes normal sinus rhythm (NSR), regular, and irregular rhythm.
3. Axis. The basic principle in finding the axis is searching for the lead whose QRS complex is closest zero.
4. P Wave Morphology. Generally, the P wave should neither measure more than one box wide nor one box tall. If it exceeds these, it means that either or both atria is enlarged and the patient is hypertrophied. V1 is the best lead to look for the P wave.
5. PR Interval. The PR interval defines AV conduction time which is usually between 0.12 - 0.20 milliseconds (or three to five boxes wide). An AV block is present if the PR interval is more than 0.2 seconds.
6. QRS Complex Morphology. This is not so easy to interpret. However, stepwise evaluation can be helpful. The following are the things to consider:
- Duration should be between 0.08 - 0.10 seconds (or 2 - 2.5 boxes) only.
- Presence of Q waves (a Q wave should be greater than one box wide).
7. ST Segment Morphology. This can determine whether ischemia or infarction is present. In general, ischemia is indicated with a depressed ST segment while an elevated ST segment confirms that there is infarction.
8. T Wave Morphology. T waves generally point to the same direction as the QRS's largest deflection. Changes in the T waves can be usually associated with ischemia, hyperkalemia, and hypokalemia.
9. U Wave Morphology. The presence of U waves may indicate hypokalemia.
10. QTc Interval. With quinidine toxicity, Qtc interval is lengthened. It is shortened with hypocalcemia.
Monday, December 12, 2011
Bionet, EKG Machine, Cardiocare 2000
!±8±Bionet, EKG Machine, Cardiocare 2000
Brand : BionetRate :
Price :
Post Date : Dec 12, 2011 08:38:56
Usually ships in 1-2 business days
The CardioCare 2000 is an economically priced 12 channel resting ECG that does not compromise on performance. Suitable for use in private practice, ER, or hospital use.Features:Up to Reimbursement pert test This machine pays for itself after 40 tests Produces accurate 12 channel printout with analysis in under 60 seconds! Over 80 kinds of interpretation results based on the advanced Minnesota Code are provided to aid your diagnosis Produces full size A4 printouts in 1,3,6 and 12ch formats Full size print-outs improve readability and make for easier filing in the patient chart 3 Year Manufacturers Warranty Includes:EKG Machine Patient Cable and Leads Set of 10 Clips Operation Manual Rechargeable Battery Power cord Chart paper and electrodes
Friday, December 9, 2011
EKG in musicvideo (Florian - You attending so fine)
Here are some clips of the upcoming musicvideo "You look so fine" by the norwegian artist "Florian". I made the green EKG/Heart-monitor line in Adobe AfterEffects using the Vegas-effects. No copyright-infrigment ment, all belong to the artist and the makers of the musicvideo (me and my class).
Monday, December 5, 2011
Electronic Stethoscope w/ ECG Monitor & pulse oximeter
!±8± Electronic Stethoscope w/ ECG Monitor & pulse oximeter
Brand : contec | Rate : | Price :
Post Date : Dec 05, 2011 23:34:17 | Usually ships in 1-2 business days
| Price : Post Date : Dec 05, 2011 23:34:17 | Usually ships in 1-2 business days
Brand New Visual Electronic Stethoscope w/ Pulse Oximeter FunctionThis visual electronic stethoscope is integrated with functions of electronic stethoscope, cardiogram and pulse oximeter. It takes the latest sensor technology to monitor human heart sound and lung sound with adjusted volume control, and it also adds functions like ECG monitor and pulse oximeter. Its high resolution color LCD screen displays real-time ECG waveform, heart rate and blood oxygen saturation(% Spo2) to help doctors diagnose in time. This visual electronic stethoscope is a lightweight, convenient device. It offers user the ability to monitor vital signs in daily life.
More Specification..!!
Friday, December 2, 2011
The EKG - There's Nothing to Fear
If you ever visit your health care provider with concerns about a possible heart condition, or if you have a hereditary risk of heart disease, he or she may arrange for a screening test known as an EKG or ECG. A lot of individuals become uneasy when they're supposed to take medical tests, but the fact is that this particular test is non invasive and might in fact save your life.
ECG and EKG are acronyms for a medical screening known as an electrocardiogram. This test measures the electrical activity of your heart. While a stethoscope can permit a physician to listen to your heart, the EKG lets him or her view the electrical current of the pulsing heart.
The heart pulsates in three different waves. The first movement is the P wave. It occurs when the right and left atria beat. These are the upper chambers of the heart that collect blood from the circulatory system and the lungs. The next wave is known as the QRS complex and is produced by the lower chambers of the heart known as ventricles. These are the elements of the heart that propel blood away from the heart. The last wave is named a T wave and it leads to the replenishment of the ventricles after they pulsate.
A doctor can learn lots of information about your heart by examining this pattern of waves. The EKG will reveal how long it takes electrical activity to move across the heart. If it's moving very quickly or too slowly, this information will help your physician make a diagnosis of your problem. The assessment will also reveal if there are specific parts of the heart that are operating inadequately by measuring how much electrical activity is present in them.
When you undertake this assessment, some stickers will be placed around your torso close to the heart. These will be joined to thin cables that lead to the ECG device. While the test is being performed, the appliance measures your electrical activity. After the assessment is completed, the sticky pads are removed. Taking off the stickers is the most uncomfortable part of the whole procedure. The rest is perfectly comfortable because the apparatus is not shooting any kind of electrical current into your system. It's only measuring the electrical activity within you.
The ECG is one of the most universally utilized tests for diagnosis of heart conditions. After you undergo this assessment, the results could lead to a diagnosis or to additional testing to pin down the specific ailment. Tests like an echocardiogram may be called for. The echocardiogram is an ultrasound of the heart and is also painless and noninvasive.
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