Laboratory standard—upper limit of normal range for microalbumin, albumin/creatinine ratio N[NN].N
Identifying and definitional attributes
Metadata item type:
Data Element
Short name:
Microalbumin level—upper limit of normal range (albumin/creatinine ratio)
Synonymous names:
Albumin/creatinine ratio
METeOR identifier:
270344
Registration status:
Health, Standard 01/03/2005
Definition:
The laboratory standard for the value of microalbumin measured as an albumin/creatinine ratio that is the upper boundary of the normal reference range.
Record the upper limit of the microalbumin normal reference range for the laboratory.
Collection methods:
Microalbumin is not detected by reagent strips for urinary proteins, and requires immunoassay.
Measurement of microalbumin levels should be carried out by laboratories, or practices, which have been accredited to perform these tests by the National Association of Testing Authority.
As urinary albumin varies with posture and exercise it is important to collect the urine under very standard conditions; short-term (2 hours) during rest, overnight (approximately 8 hours) or an early morning sample. For screening purposes an early morning urine specimen is adequate and if the albumin/creatinine ratio is found to be greater than 3.5mg/mmol then a timed overnight sample should be obtained for estimation of the albumin excretion rate.
Source and reference attributes
Submitting organisation:
National Diabetes Data Working Group
Origin:
National Diabetes Outcomes Quality Review Initiative (NDOQRIN) data dictionary.
