Qrst Q T Form

Instructions and help about Qrst Q T

hey everyone it's sarah with registerednessrn.com and in this video i'm going to be reviewing the qt interval which is found on the ecg so let's get started the qt interval starts at the beginning of the qrs complex and ends after the t wave and this demonstrates the time it takes for electrical signals to cause the ventricles to contract and then rest with this you're looking at the measurement typically it's anywhere between 0.35 to 0.44 seconds and men have shorter intervals than women and it really varies depending on if it's a fast heart rate or a slow heart rate fast heart rates have shortened qt intervals and a prolonged one could increase the risk of ventricular dysrhythmias like torsades the plant then you want to take a look at the qt interval and again that was found at the beginning of the qrs complex to the end of the t wave and you just want to count the boxes from there to there here we have about nine boxes so that gives us point three six seconds and just track that do