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Salicylate refers to a salt or ester derived from salicylic acid, which is a compound commonly associated with a group of medications known as salicylates. These medications, including aspirin, are utilized primarily for their analgesic (pain-relieving), anti-inflammatory, and antipyretic (fever-reducing) properties. Additionally, salicylates play a role in preventing excessive blood clotting, making them significant in various therapeutic contexts. Testing for salicylate levels is particularly critical in situations where there is suspicion of overdose or ingestion of unknown substances, especially in cases presenting with symptoms of metabolic acidosis. Symptoms indicative of salicylate toxicity may include nausea, hyperventilation, arrhythmias, tinnitus, and vertigo. In more severe cases, particularly in unconscious individuals or children, the ingestion of salicylates can lead to serious health complications such as electrolyte imbalances, low blood glucose levels, dehydration, confusion, hearing loss, convulsions, hallucinations, delirium, and potentially fatal outcomes such as coma or death. The testing process typically employs immunoassay or enzymatic methods, such as fluorescence polarization immunoassay (FPIA), which analyze serum or plasma samples, and occasionally urine samples, to quantify salicylate levels. Results are reported in milligrams per deciliter (mg/dL) or micrograms per milliliter (mcg/mL), with symptoms of toxicity generally manifesting at salicylate concentrations exceeding 10-30 mg/dL or 100-300 mcg/mL. The FPIA technique involves the use of a salicylate-specific antigen labeled with fluorescein, which is introduced to the serum sample and subjected to light irradiation. The reflected light is then analyzed to differentiate between bound and unbound fluorescein, allowing for the quantification of salicylate levels based on the intensity of the reflected signal.
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Salicylate testing is indicated in several clinical scenarios where there is a concern for potential toxicity or overdose. The following conditions warrant the performance of this test:
The procedure for salicylate testing involves several key steps to ensure accurate measurement of salicylate levels in the patient's serum or plasma. The following procedural steps are typically followed:
After the salicylate testing procedure, the patient may not require any specific post-procedure care unless otherwise indicated by their clinical condition. It is essential to monitor the patient for any symptoms of toxicity, especially if elevated salicylate levels are detected. In cases of confirmed salicylate toxicity, appropriate medical interventions should be initiated, which may include supportive care, hydration, and potentially the use of activated charcoal or other treatments as deemed necessary by the healthcare provider. Follow-up testing may also be required to monitor salicylate levels and assess the effectiveness of treatment.
| Short Descr | DRUG ASSAY SALICYLATE | Medium Descr | DRUG ASSAY SALICYLATE | Long Descr | Salicylate | Status Code | Statutory Exclusion (from MPFS, may be paid under other methodologies) | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 9 - Not Applicable | Multiple Procedures (51) | 9 - Concept does not apply. | Bilateral Surgery (50) | 9 - Concept does not apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 9 - Concept does not apply. | Co-Surgeons (62) | 9 - Concept does not apply. | Team Surgery (66) | 9 - Concept does not apply. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | CLIA Waived (QW) | No | APC Status Indicator | Conditionally packaged laboratory tests | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | none | MUE | 2 |
| 90 | Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number. | 26 | Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number. |
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| 2021-01-01 | Added | Code added. |
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