Electrolytes
Electrolytes like sodium, potassium, calcium, and magnesium control nerve signaling, muscle contraction, heart rhythm, and fluid balance. Even minor imbalances can cause fatigue, cramps, confusion, or irregular heartbeat. Blood testing ensures these critical minerals stay within optimal ranges — especially important during illness, intense exercise, or medication use.
Chloride
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Chloride is a major electrolyte that maintains fluid balance and acid-base status. Testing helps evaluate hydration, kidney function, and diagnose metabolic disorders through the anion gap.
Learn more about Chloride
Sodium
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Sodium is the key electrolyte controlling fluid balance and blood pressure. Testing detects hyponatremia (too dilute) or hypernatremia (dehydration) that can affect brain function.
Learn more about Sodium
Calcium (Adjusted)
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Calcium adjusted test provides accurate results when albumin is abnormal. Essential for liver disease, malnutrition, and hospitalized patients where standard total calcium is misleading.
Learn more about Calcium (Adjusted)
Potassium
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Potassium is a critical electrolyte for heart rhythm and muscle function. Testing detects dangerous imbalances that can affect your heart, especially in kidney disease or when taking certain medications.
Learn more about Potassium
Magnesium
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Evaluates magnesium status essential for muscle function, heart rhythm, energy production, blood pressure, and blood sugar control. Helps detect common deficiency causing cramps, fatigue, arrhythmias, and poor sleep.
Learn more about Magnesium
Carbon Dioxide (CO2) (Bicarbonate)
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CO2/bicarbonate measures blood’s buffering capacity and acid-base balance. Low levels indicate metabolic acidosis (DKA, kidney disease); high levels suggest metabolic alkalosis or compensation for chronic lung disease.
Learn more about Carbon Dioxide (CO2) (Bicarbonate)
* This blood test can be added for an extra charge and is not included in the £299+ membership.
The average physician tests only 19 biomarkers.
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