I’m trying to LOINC a test from an outside lab. The outside lab has given us a LOINC code, but I’m not sure it’s correct. The LOINC code they have assigned is:
33536-4 Allergen.miscellaneous Ab.IgE.RAST class ACnc Pt Ser Ord
The “value” of this test code is a text string as follows (I’ve tried to remove any identifying information about the performing laboratory):
REFERENCE INTERVAL: Allergen, Interpretation
Less than 0.10 kU/L: No significant level detected
0.10-0.34 kU/L: Clinical relevance undetermined
0.35-0.70 kU/L: Low
0.71-3.50 kU/L: Moderate
3.51-17.50 kU/L: High
17.51 kU/L or Greater: Very High
Allergen results of 0.10-0.34 kU/L are intended for
specialist use as the clinical relevance is undetermined.
Although increasing ranges are reflective of increasing
concentrations of allergen-specific IgE, this may not
correlate with the degree of clinical response or skin
testing when challenged with a specific allergen. The
correlation of allergy laboratory results with clinical
history and in vivo reactivity to specific allergens is
essential. A negative test may not rule out clinical
allergy or even anaphylaxis.
Performed by an outside lab,
Street Address, City, State Zip
URL, Lab Director Name
Performed at Reference Laboratories, City, State
What happens is a patient gets multiple individual allergy tests done. Each test is resulted with a number, and the units, "kU/L". Then 33536-4 is sent with the value as shown above. I'm not quite sure if this is even LOINC-able, as it really is a reference range, or a "do it yourself" RAST class. The clinician would take the numeric value of each allergy test, then look at this text glob to decipher the RAST class.
Is this the right LOINC for this test?