Reason for lab test in Dried blood spot 57721-3
LOINC Code
| LOINC code | 57721-3 | ||
|---|---|---|---|
| name | Reason for lab test in Dried blood spot | ||
| description | Definitions of answer codes for reason for newborn screen lab test in dried blood spot: Initial Screen: This answer code is used for the first screen performed on an infant after birth. When the first specimen obtained is of unacceptable quality and cannot be used, a replacement specimen is still considered the initial screen. When an initial screen is performed before 24 hrs because of a planned transfusion or an extremely ill infant, it is still considered the initial screen even though it may need to be repeated later. Subsequent screen - required by law: This answer code is used for mandatory second screens as required by law and assumes that the first screen was normal and that the second screen was performed only because it was mandated by law. For example, [give name of state(s)] currently performs a second screen on every infant born in the state at a particular point in time, such as between 1 and 2 weeks. The purpose of identifying the reason for a subsequent screen is that it will change the expected time interval when the subsequent screen should be performed. Subsequent screen - required by protocol: This answer code is used for subsequent screens that are performed because of clinical conditions in the newborn that require a repeat screen as specified by a protocol to assure valid test results. Many of these subsequent screens have abnormal or out-of-range results on the initial screen that can be explained by the clinical condition of the infant. Typical examples include premature infants, infants who receive blood product transfusions, and infants who are receiving intravenous alimentation. This category should not include abnormal tests that should be considered presumptive positives (which would require a diagnostic evaluation rather than a repeat screen by protocol). The purpose of identifying the reason for a subsequent screen is that it will change the expected time interval when the subsequent screen should be performed. Subsequent screen - for clarification of initial results (not by law or protocol): When the results of the initial screen are abnormal or out of range, many states perform an "immediate" repeat screen to confirm the results before considering the test a presumptive positive that will require a diagnostic evaluation. Many of these results may be considered or reported as equivocal or borderline until a clear abnormality is confirmed on the subsequent screen. This category does not include abnormal or borderline results for which there is a clear clinical explanation, such as prematurity, for which there is a clear protocol for obtaining a second screen. The purpose of identifying the reason for a subsequent screen is that it will change the expected time interval when the subsequent screen should be performed. Subsequent screen - reason unknown: The purpose of identifying the reason for a subsequent screen is that it will change the expected time interval when the subsequent screen should be performed. States should use this answer code if they are unable to identify the specific reason for a subsequent screen, but they are able to separate initial screens from subsequent screens. The reason for the second screen might be any of the above. A repeat initial screen because the first specimen was of unacceptable quality should not be considered a subsequent screen, but some states may use this code if they are unable to track that the reason for a second specimen was unacceptable quality of the first screen. No sample collected due to parental refusal: This answer code is used to document parental refusal of newborn screening so that a report can be generated which will contain no test results because no specimen was submitted. This will enable complete matching of newborn screening results to all infants born even if no laboratory testing was performed. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Reason for lab test | ||
| property | Type = Type: The Property Type is used for assays that identify the specific analyte in cases when the baseline presence of the analyte is known. | ||
| 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 | Nom = Nominal: Nominal or categorical responses that do not have a natural ordering. (e.g., names of bacteria, reported as answers, categories of appearance that do not have a natural ordering, such as, yellow, clear, bloody. | ||
| method | |||
Additional Names | |||
| short name | Reason for lab test DBS | ||
Basic Attributes | |||
| class | MISC | ||
| type | 1 Laboratory | ||
| order vs. observation | Observation | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
Member of these Panels | |||
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History/Usage | |||
| test rank | 13935 of 2000 most commonly performed tests by labs in USA | ||
| first released | |||
| last updated | 2.73 | ||
| last change type | MIN - change to field other than name | ||
Related Names | |||
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