Home >> Study >> ForumTopic: ECG CHANGES AND HYPERKALEMIA
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| PAMELA Total Posts: 9 | Posted: Tue Oct 14, 2008 04:46 pm ECG CHANGES IN HYPO AND HYPER KALEMIA IS A FAVOURITE QUESTION ans is asked in many papers.. can anyone please tell me whats the relation of QT interval with hyo and hyperkalemia.. i figures out every difference but am confused with this. |
| juhidr Total Posts: 149 | Posted: Tue Oct 14, 2008 05:53 pm Electrocardiographic (ECG) findings associated with - Hypokalemia - are 1. flattened T waves 2. U waves 3. ST segment depression 4. Prolongation of the QT interval - Hyperkalemia - 1. Mild to moderate hyperkalemia - a. Reduction of the size of the P wave b. Peaked T waves 2. Severe hyperkalemia - a. Widening of the QRS complex b. ECG complex can evolve to a sinusoidal shape How I remember it ? I concentrate on "T" Wave keeping the length of an ECG cycle constant With Hypokalemia - T is hypo (low) so "T" goes down, ST Goes down, P goes down, when space becomes less, new wave - U wave appears With Hyperkalemia - T is hyper (increased) so "T" does up (Tall T), QRS gets pulled so complex is widened, etc |
| juhidr Total Posts: 149 | Posted: Tue Oct 14, 2008 05:56 pm Small Error in previous one - Electrocardiographic (ECG) findings associated with - Hypokalemia - are 1. flattened T waves 2. U waves 3. ST segment depression 4. Prolongation of the QT interval - Hyperkalemia - 1. Mild to moderate hyperkalemia - a. Reduction of the size of the P wave b. Peaked T waves 2. Severe hyperkalemia - a. Widening of the QRS complex b. ECG complex can evolve to a sinusoidal shape How I remember it ? I concentrate on "T" Wave keeping the length of an ECG cycle constant With Hypokalemia - T is hypo (low) so "T" goes down, ST Goes down, but lenght is constant so there is prolongation of QT interval, when space becomes less, new wave - U wave appears With Hyperkalemia - T is hyper (increased) so "T" does up (Tall T), QRS gets pulled so complex is widened, but as the lenght is constant so P goes down too, etc |