Hypokalemia means low potassium levels in the blood. Potassium is a critical electrolyte that helps muscles, nerves, and the heart function correctly.
Hypokalemia occurs when blood potassium levels fall below normal. Potassium plays a major role in electrical signaling throughout the body.
When potassium drops too low, the heart, muscles, and nervous system may not work properly.
| Cause | Example |
|---|---|
| Diuretics | Lasix or hydrochlorothiazide |
| Vomiting | Loss of electrolytes |
| Diarrhea | GI potassium loss |
| Poor nutrition | Low dietary intake |
| Excess insulin | Potassium shifts into cells |
Potassium helps control electrical activity in muscles and cardiac tissue. Even small changes in potassium can affect the heart rhythm.
Healthcare professionals monitor potassium closely because severe hypokalemia can become dangerous.
Potassium imbalance can change the appearance of an EKG.
| EKG Finding | Description |
|---|---|
| Flattened T waves | T waves become smaller |
| U waves | Extra wave after T wave |
| ST depression | Lower ST segment |
| Arrhythmias | Abnormal heart rhythms |
| Condition | Potassium Level |
|---|---|
| Hypokalemia | Too low |
| Hyperkalemia | Too high |
Both conditions can affect the heart and are important healthcare concepts for nursing, TEAS, and medical terminology study.
Severe hypokalemia can become dangerous because it may affect heart rhythm and muscle function.
Bananas, potatoes, spinach, avocados, and oranges are common potassium-rich foods.
Yes. Potassium imbalance can lead to abnormal heart rhythms and EKG changes.
Potassium is critical for cardiac and muscle function, especially in hospitalized patients.