Osmolality Serum

Serum Osmolality measures the concentration of dissolved particles—primarily sodium, glucose and urea—in the blood and provides a direct assessment of a person’s hydration status and electrolyte balance. The test is performed on serum from a venous blood sample and is analysed using lab-grade osmometry to deliver accurate, clinically actionable results.

This test is useful for diagnosing and monitoring conditions such as dehydration, hyponatremia or hypernatremia, renal impairment, and disorders of water balance (for example SIADH). With Touch Connect’s at-home collection across Dubai and the UAE, patients benefit from convenient sample collection and fast, reliable results to support timely clinician decisions about fluids, medications, or further investigations.

• Serum Osmolality
• Calculated Osmolality
• Sodium (Na+)
• Potassium (K+)
• Chloride (Cl-)
• Glucose

• Symptoms of dehydration (thirst, low urine output, dizziness)
• Confusion, lethargy or unexplained altered mental status
• Suspected hyponatraemia or hypernatraemia
• Monitoring chronic kidney disease or acute renal injury
• After prolonged vomiting, diarrhoea or excessive fluid loss
• When adjusting diuretics or intravenous fluid therapy

• Accurate, lab‑grade osmolality measurement from an at‑home sample
• Convenient phlebotomy across Dubai and the wider UAE
• Fast result turnaround to guide timely clinical decisions
• Supports management of electrolyte and fluid disorders
• Results delivered securely with clinician-ready reporting

• At‑home venous blood sample collection by a trained phlebotomist
• No strict fasting required unless instructed by your clinician
• Avoid excessive oral fluids or IV fluid administration for several hours before sampling if possible
• Inform the collector of recent medications (diuretics, IV fluids, lithium) and relevant medical conditions