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Potassium - K

What does the Potassium - K blood test mean? Get a free analysis of your blood test now. Here's what you get with our free analysis:

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Potassium is a crucial electrolyte that plays a vital role in maintaining proper nerve and muscle function, especially in the heart. It helps regulate fluid balance, nerve signals, and muscle contractions. The potassium test measures the level of this electrolyte in the blood, which is tightly controlled by the kidneys. Abnormal levels can indicate kidney problems, dehydration, or other health issues. Certain medications, particularly diuretics and some blood pressure medications, can affect potassium levels. Maintaining the right balance of potassium is essential for overall health and proper functioning of various bodily systems.

Acceptable Range:   3.5 to 5.2
Ideal for Women:   3.5-5.0
Ideal for Men:   3.5-5.0
Ideal for Girls:   3.4-4.7
Ideal for Boys:   3.4-4.7
Test Method: blood

What do readings below 3.5 mEq/L for Potassium - K mean?

A low potassium level (hypokalemia) can be dangerous and may indicate:

  • Excessive fluid loss (e.g., from vomiting, diarrhea, or excessive sweating)
  • Certain medications (e.g., diuretics)
  • Poor dietary intake
  • Kidney problems
  • Magnesium deficiency

Symptoms may include muscle weakness, fatigue, irregular heartbeat, and in severe cases, paralysis. Immediate medical attention is often necessary to prevent complications, especially related to heart function.

What do readings above 5.2 mEq/L for Potassium - K mean?

An elevated potassium level (hyperkalemia) can be life-threatening and may suggest:

  • Kidney dysfunction
  • Certain medications (e.g., ACE inhibitors, potassium-sparing diuretics)
  • Excessive potassium intake
  • Adrenal gland disorders
  • Severe tissue damage or burns

Symptoms can include muscle weakness, tingling sensations, and irregular heartbeat. High potassium levels can lead to dangerous heart arrhythmias and require immediate medical intervention. In severe cases, emergency treatment may be necessary to protect heart function.

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