What is the difference between an electrocardio gram and electrocardio graph?
460496
the electrocardiogram is a noninvasive test to aid in the diagnosis and treatment of hearth disease and related conditions a EKG records the hearth electrical activity in a visual graph they are also called stress test.The electrocardiograph is the result of the test in other words a electrocardiograph.
150174
The EKG estimates the net vector (in two dimensions) of the electrical activity of the heart; from the direction that the V1 lead looks (Above and to the right of the heart, as I recall laying out the electrodes years ago), the electrical activity is going away from the lead--towards the feet, or in the QRS part (the really big deflection), it's going from the AV node toward the tip of the ventricles.  That would be read as a negative direction.\n\nRemember, at every instant in time, the EKG is recording the equivalent of the dot product between the actual vector of the flow of current (so to speak) in the heart, and a vector that is created by connecting the leads in question.  For the V1 lead (a precordial lead), the leads connected to the limbs are used as a single lead, sort of grounding things out between all four of them (think of it being a lead somewhere behind the belly button, if you want), and then measuring the dot product of the electrical vector and a line connecting the V1 position with that.\n\nA little vector algebra makes this a LOT easier!
286282
They are not the same.\n\nCardiac arrest is when a heart stops beating / contracting. That is when you give a CPR and either shock the heart or give appropriate drugs to treat it.\n\nHeart attack is when the heart muscles die as a result of not getting enough blood supply. Here you give drugs directed to improve the blood supply of the heart. In most cases the heart keeps beating after the heart attack. But rarely, if many of the muscle fibers are dead, the person's heart stops beating too. In those cases, cardiac arrest happens as a result of heart attack.\n\nHope its clear to you now.
383722
In layman's terms...electrical activity of the heart is affected by the oxygen supply.  Healthy, well oxygenated heart muscle cells have a certain electrical signature that can be seen on the ECG.  ST depression is a form of deviation from that normal signature that denotes "ischemia" or decreased oxygenation of some heart muscle cells.  It usually means there are some blockages in the heart arteries and some heart muscle is not getting enough oxygen...Hope that helps..
1152108
This isn't really a question, but a test result. What is shows is a heart that has decresed blood supply that causes changes in the EKG, which is the electrical output of your heart with exertion. \n\nThe marks on an EKG are labelled P-QRS-T. The P is the contraction of the upper chambers of your heart, the QRS is the contraction of the larger lower chambers of the heart, and the T is the relaxation phase of those lower chambers, called the ventricles. The lead numbers and letters represent directions through the heart, and which ones have changes show the cardiologist what areas have decreased blood supply. "ST" changes are the place in the PQRST the hungry muscle shows up. "Ischemia" means dimininshed blood supply.\n\nThis usually means the coronary arteries which feed the heart blood have a blockage or other restriction of flow, from clots, build up of plaque or other damage. \n\nMore tests are needed to determine what kind of problem exists. A nuclear scan would show whether muscle has already been permanently damaged  or if it is possibly reversible. The "gold standard" would be a heart catherteriztion to map the exact problem, and even fix it with a balloon or by placing a stent.\n\nA test result like this one indicates a need for more follow up and whoever has this needs to promptly follow up with a cardiologist, preferably an interventional one. It's not a time to panic but to take necessary action.\n\nHope that answers some of your question, but this should be discussed with the doctor until you are satisfied with what it means.
971788
Yes, scatter graphs, but why not try one for males, one for females, and one for all. Investigate if scatter graphs for different groups of people have different lines of best fit. Good luck with your coursework.
34162
I'm guessing that you are trying to graph some cell division data and are trying to figure out which variable is the independent (x axis) and dependent (y axis) variables. Let's first start with the a rule of thumb for you: I'm assuming your graphing cell divisions over time. Anytime you are graphing something over time, time is almost always the independent variable.\n\nIt is the same in this case also. The number of cells is the dependent variable. (The number of cells present is dependent on how much time has passed).
593379
what is the difference between the two
709862
A bar graph is usually used when one would like to compare the frequencies of the different components. By using a bar graph, it is very evident which is the highest, the lowest etc.\n\nA pie graph is used to show the proportion of the different components of the total frequency. You can tell immediately which is the majority when you use this, but you cannot really tell at first glance when you use a bar graph.
793733
Wow! That could be complicated....see: http://www.icsroscher.de/HeartScope.htm\nYet, an experiment using "cheap and cheerful" technology is described on http://www.picotech.com/experiments/calculating_heart_rate/\nwhich makes use of a (relatively) low cost data logger http://www.drdaq.com/products.html\nwhich plugs directly into the parallel port of your PC, see  http://www.picotech.com/applications/ecg.html\nHope this helps....
969860
1)Computerised axial tomography -taking Xray pictures of human or animal body in different planes without invading 2)Digital electrocardiography-Takes ECG pictures in all 12 leads without manually altering the electrodes 3)Computerised treadmill --Informs the state of heart rate,ECG,Blood pressure,at each speed of walking and running.4)Measuring refractory eror of eyes digitally 5)Data base storage of height,weight,gender,endemic,epidemic incidence,and immunisation status of all countries.
220363
Depends on the cell constant G. G = l/a where l is the distance between the two electrodes. as l increases, G increases hence conductivity increases.
1132263
Some relationships in mathematics and in real world are more complex and cannot be easily represented by a line graph (for example, the growth of bacteria is exponential, therefore you need a parabola to represent that relationship. A line graph just wouldn't do in this case).
434735
I'm pretty sure that's what that means...it sounds like a seizure was registered on an ECG (aka EKG) report.  An ECG/EKG is a machine that records your heart activity...the ones you see in movies and on tv that beep and when a person dies a straigt line comes across the monitor.  An ECG/EKG report is the printed out version of what happened on the screen.
1069391
EKG, Electrocardiogram, Treadmill, Nuclear Medicine Test, Angiogram.
168710
http://www.graphcalc.com/
732303
The ECG is a very good study but it has many limitations.  It is very reliable at detecting problems that interrupt or change the electrical energy paths through your heart.  The heart has two major systems though - the pumbing and the electricity.  Sometimes one systems affects the other but sometimes not, too.  There are plenty of true heart attacks, for instance, that demonstrate no or very little change on the ECG.  As well there are plenty of benign conditions that change the electricity (from "normal") and turn out to be nothing more than a congenital malformation in the way a person's heart works.  Finally ECG's are a moment in time - they are very poor at predicting what might happen in the future.\n\nIn short, just because you had a normal or abnormal ECG, it may or may not mean anything and it certainly doesn't tell you what might happen tomorrow.  It needs to be assessed in context of other markers or symptoms.