Potassium
What is K in blood tests?
K Measurement
Low: Below 3.5mmol/L
High: Above 5.1mmol/L
About Potassium
Potassium is a key electrolyte involved in nerve signaling, muscle contraction, and heart function.
The reasons for low K
Low potassium (hypokalemia) is commonly caused by diuretics, excessive sweating, kidney disease, vomiting, or diarrhea. It can also be due to insufficient dietary intake or conditions like Cushing’s syndrome. To increase potassium, consuming potassium-rich foods (bananas, avocados, potatoes, beans) or potassium supplements, if needed, can help.
The reasons for elevated K
High potassium (hyperkalemia) is often linked to kidney disease, excessive potassium supplementation, acidosis, or medications like ACE inhibitors. It can cause heart palpitations and muscle weakness. To lower potassium, avoiding potassium-rich foods, improving kidney function, and medications like diuretics may be required.
Is it bad too have too high/low K?
Hypokalemia can lead to muscle cramps, weakness, irregular heartbeats, and paralysis in severe cases. Chronic low potassium levels increase the risk of heart arrhythmias and metabolic imbalances.
Hyperkalemia can cause dangerous heart arrhythmias, leading to cardiac arrest in severe cases. It also affects muscle function and can cause paralysis if untreated.