You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is ECG changer in digitalis toxicity are A/E ? and explain in detail?
Ans. is 'b' i.e., Diminished T wave amplitude All the given ECG changes can be produced by digitalis. o But, examinar has asked specifically about the ECG changes in digitalis toxicity (not at therapeutic concentration) Diminished T wave amplitude occurs at therapeutic concentration, in toxicity T wave becomes inveed. o There are some characteristic ECG changes by digitalis use, some of which occur at therapeutic concentration and some occurs at toxic leve. 1. At therapeutic level o Prolongation of PR interval Scooping of ST segment --> Also known as digitalis wave or dig sag there is down sloping ST depression (initially) Shoening of QT interval o Decreased T wave amplitude/or T wave inversion 2. At toxic level: Above changes are amplified o Prolongation of PR interval -p conduction block may occur o T wave inversion ST depression o QT interval shoens fuher o Increased automaticity --> Arrhythmias