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Potassium Blood Test

Type

Blood Testing

Biomarkers

4

Duration

30 min

Results

24 hours

Comprehensive blood test to assess muscle, nerve, and heart function via potassium levels.

Understanding your potassium levels is crucial for optimal health. Potassium regulates blood pressure, fluid balance, and muscle and nerve function. A Potassium blood test provides vital insights into your overall well-being, aiding informed decisions about diet, lifestyle, and treatments. This test does not require a GP referral. This test is only available at our clinics due to potassium's unstable nature; home sample collection isn't feasible. Samples must be centrifuged and in our labs within 8 hours of collection.

Key Details

Biomarkers
4–6 electrolyte markers
Fasting Required
Not required
Sample Type
Blood draw
Turnaround
Same day to 24 hours
Common Use
Hydration, medication monitoring, kidney health

Who Is This For?

People taking diuretics, blood pressure medications, or other drugs that affect electrolyte balance. Athletes and endurance sport participants concerned about hydration and mineral loss. Anyone experiencing muscle cramps, weakness, irregular heartbeat, or confusion. Patients with kidney disease, heart failure, or liver disease who need regular monitoring.

What's Included

Sodium (Na+)
Potassium (K+)
Chloride (Cl-)
Bicarbonate (CO2/HCO3-)
Calcium (if included)
Phosphate (if included)

Preparation Required

Fasting for 10–12 hours before your appointment is recommended for accurate results (water is fine). Avoid alcohol for 24 hours and intense exercise for 12 hours before the blood draw. Morning appointments are ideal for consistent hormone and glucose readings. The blood draw typically takes 5–10 minutes.

Biomarkers Tested

4
Potassium mEq/L

A critical electrolyte for heart rhythm, muscle contractions, and nerve function. Both high and low potassium can cause dangerous cardiac arrhythmias. Levels are influenced by kidney function, medications, and diet.

Sodium mEq/L

The primary electrolyte regulating fluid balance and blood pressure. Sodium is essential for nerve impulses and muscle contractions. Abnormal levels can cause confusion, seizures, and cardiac arrhythmias.

Chloride mEq/L

An electrolyte that works with sodium to maintain fluid balance, blood pressure, and acid-base balance. Chloride abnormalities often accompany sodium abnormalities and can indicate dehydration, kidney disease, or metabolic disorders.

Bicarbonate mEq/L

A key component of the body's acid-base buffering system. Bicarbonate levels reflect the balance between acids and bases in the blood. Abnormal values help diagnose metabolic acidosis or alkalosis.

Price
£31.20 £39.00

Subscription plans offer discounts (up to 20% off) for continuous monitoring.

Category
Diagnostic
Sample Type
Blood draw
Duration
30 min
Results
24 hours
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Frequently Asked Questions