What is reference range in clinical chemistry?
A reference range is usually defined as the set of values 95 percent of the normal population falls within (that is, 95% prediction interval). It is determined by collecting data from vast numbers of laboratory tests.
What is the reference range of potassium in serum in conventional units & SI units What is the conversion factor for potassium?
3.5-5.0 mmol/L
Potassium is ingested through food and electrolyte-enhanced beverages and excreted primarily through urine, with a minority portion removed through the gastrointestinal tract. The reference ranges for blood potassium levels are as follows : Adult/elderly: 3.5-5.0 mEq/L or 3.5-5.0 mmol/L (SI units)
What are the standard methods used to measure potassium in the clinical lab?
The DxC800 system uses indirect (or diluted) I.S.E. (ion selective electrode) methodology to measure potassium in biological fluids. The system determines potassium ion concentration by measuring electrolyte activity in solution. The potassium electrode consists of valinomycin membrane.
What is a reference range for a drug?
In medicine, a set of values that a doctor uses to interpret a patient’s test results. The reference range for a given test is based on the results that are seen in 95% of the healthy population.
Is reference range and reference interval the same?
A REFERENCE INTERVAL is the interval between and including two reference limits. The term “reference range” was rejected because strictly (statistically) speaking range is the difference between the highest and lowest value in a number set; it is a single value.
What is the reference range for potassium?
Normally, your blood potassium level is 3.6 to 5.2 millimoles per liter (mmol/L).
Is 4.7 A good potassium level?
What is a safe or normal potassium level? A typical potassium level for an adult falls between 3.5 and 5.0 millimoles per liter (mmol/L). Hyperkalemia occurs when levels go above 5.5 mmol/L. A reading above 6.5 mmol/L can cause heart problems that require immediate medical attention.
What is the reference range of serum potassium?
Normal serum potassium is 3.5 to 5.5 mEq/L; however, plasma potassium is 0.5 mEq/L lower.
What is the normal range for potassium blood test?
How do you determine reference range?
When assuming a normal distribution, the reference range is obtained by measuring the values in a reference group and taking two standard deviations either side of the mean. This encompasses ~95% of the total population.