74303-9
LOINC Code
| LOINC code | 74303-9 | ||
|---|---|---|---|
| name | |||
| description | This test measures the phenylalanine (PHE) level in children who have been diagnosed with phenylketonuria or tyrosinemia and are on a therapeutic diet for their condition. The parent of the patient collects the dried blood spot specimen at home and sends it to the laboratory. The phenylalanine level is used in combination with tyrosine and succinylacetone levels to monitor the patient's progress. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Phenylalanine^post therapeutic diet | ||
| property | SCnc = Substance Concentration | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Bld.dot = Blood filter paper | ||
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | ||
| method | |||
Additional Names | |||
| short name | After; Blood; CHEMISTRY.CHALLENGE TESTING; DBS; Dried blood spot; Filter paper; FP; Level; p diet; Phe; PKU; Point in time; PPA; PST; QNT; Quan; Quant; Quantitative; Random; Substance concentration; Ther; WB; Whole blood | ||
Basic Attributes | |||
| class | CHAL | ||
| type | 1 Laboratory | ||
| order vs. observation | Phe p diet DBS- | ||
| example UCUM units | umol/L The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | ||
Member of these Panels | |||
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History/Usage | |||
| first released | |||
| last updated | 2.61 | ||
| last change type | MIN - change to field other than name | ||
| change reason | umol/L | ||
Related Names | |||
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