The "e and u test" is another name for a urea and electrolyte (U&E) panel. This is a common blood test used to assess renal function and fluid and electrolyte status. The test measures the levels of different substances in the blood, including:
- Urea: A waste product produced by the body that is normally filtered out by the kidneys. Elevated urea levels can indicate kidney problems.
- Electrolytes: Minerals that carry an electrical charge and help regulate the body's fluid balance. These include sodium, potassium, chloride, and bicarbonate.
The U&E test can also be used to investigate acid-base disturbances, usually alongside an arterial blood gas. This is because electrolytes contribute to serum osmolality, a measure of the concentration of dissolved particles in the blood.
The test is often shortened to U&E, EUC or UEC.
Examples of why a doctor might order a U&E test:
- To check kidney function in someone with a history of kidney disease
- To monitor the effectiveness of treatment for kidney disease
- To diagnose dehydration
- To investigate a possible electrolyte imbalance
- To check for acid-base disturbances
In summary, the "e and u test" is a blood test that assesses kidney function and electrolyte levels. It plays an important role in diagnosing and monitoring various health conditions.
