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Phosphate Blood Test

Type

Blood Testing

Biomarkers

5

Duration

30 min

Results

24 hours

Measure the level of phosphate in your bloodstream, it is essential for bone health, energy metabolism and various cellular functions.

A phosphate blood test measures the amount of phosphate (an essential mineral) in your blood. Phosphate is primarily used by your body to build and repair bones and teeth, produce energy, and support muscle function. Phosphate is considered an electrolyte, alongside sodium, potassium, magnesium or calcium. Electrolytes are substances that carry an electric charge when dissolved in bodily fluids, and phosphate plays an essential role in various physiological processes. Like other electrolytes, phosphate levels are closely regulated by the body, and imbalances can lead to health issues. For example, low phosphate levels may affect energy production and muscle function, while high phosphate levels, often due to kidney dysfunction, can lead to calcification in soft tissues and other complications.

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

5
Phosphate mg/dL

A mineral essential for bone formation, energy metabolism (ATP), and acid-base balance. Phosphate levels are inversely related to calcium and regulated by parathyroid hormone and vitamin D.

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.

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.

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
£55.20 £69.00

Subscription plans and discounts (up to 20% off)

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