A Sodium test measures the level of sodium in your blood. Sodium is the most abundant electrolyte in your body’s fluids outside of cells and plays a critical role in fluid balance, blood pressure regulation, and nerve/muscle function.
What This Test Measures
Sodium (Na):
An essential mineral that helps control fluid balance, blood volume, and blood pressure. It also enables nerve impulses and muscle contractions.
Reference Range
Normal: 136-145 mEq/L
Understanding Abnormal Results
High Sodium (Hypernatremia):
• Usually indicates dehydration
• Can cause thirst, confusion, muscle twitching
• May result from inadequate water intake, excessive sweating, or certain medications
Low Sodium (Hyponatremia):
• Can be caused by excess fluid intake, certain medications, or medical conditions
• Symptoms include nausea, headache, confusion, fatigue
• Severe cases can cause seizures
Who Should Consider This Test
• Those experiencing symptoms of sodium imbalance
• Monitoring conditions like heart failure, kidney disease, or liver disease
• People taking diuretics or other medications affecting sodium
• Evaluation of dehydration or overhydration
• Athletes or those in hot climates
How It Works
1. Order your test online – no doctor visit required
2. Visit any Quest Diagnostics location nationwide
3. Simple blood draw takes approximately 5 minutes
4. Results delivered to your secure portal within 1-2 business days
Preparation
No fasting required.
Related Tests to Consider
• Electrolyte Panel – Includes sodium plus potassium, chloride, and CO2
• Comprehensive Metabolic Panel – Complete metabolic assessment
• Kidney Function Tests – Sodium balance is closely tied to kidney function
Why Choose Wittmer Rejuvenation Clinic
At $9, our Sodium test is an affordable way to check this important electrolyte. We partner with Quest Diagnostics for reliable, CLIA-certified laboratory testing.
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