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Hypercalcemia refers to a condition characterized by elevated levels of calcium in the bloodstream. Electrocardiogram (ECG or EKG) is a test that records the electrical activity of the heart over a period of time. Hypercalcemia can have various effects on the heart and may be reflected in the ECG findings.

In the context of hypercalcemia, the ECG may show several changes, including:

1. *Shortened QT Interval:* Hypercalcemia can lead to a shortened QT interval on the ECG. The QT interval represents the time it takes for the heart's ventricles to depolarize and repolarize. Shortening of the QT interval can predispose individuals to arrhythmias (abnormal heart rhythms).

2. *Bradycardia:* Hypercalcemia can cause bradycardia, which is a slower than normal heart rate. This might be reflected in the ECG as a heart rate slower than the typical range.

3. *Arrhythmias:* Abnormal levels of calcium in the blood can disrupt the normal electrical signals in the heart, potentially leading to arrhythmias. Arrhythmias can manifest as irregular heartbeats, palpitations, or other abnormal rhythms on the ECG.

4. *ST Segment Changes:* Hypercalcemia can sometimes cause changes in the ST segment on the ECG. The ST segment represents the period between ventricular depolarization and repolarization. Changes in this segment can indicate myocardial ischemia or other heartrelated issues.

5. *Heart Block:* In severe cases of hypercalcemia, heart block can occur. Heart block is a condition where the electrical signals between the heart's chambers are delayed or blocked. It can manifest on the ECG as prolonged PR intervals.

It's important to note that the ECG changes associated with hypercalcemia can vary widely depending on the severity of the condition and individual differences. Additionally, other factors and underlying heart conditions can also influence the ECG findings in hypercalcemia. If hypercalcemia is suspected, it's crucial for a healthcare professional to interpret the ECG findings in the context of the patient's overall health and medical history.


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