Analyzer Testing
Thyroid Analyzer
Thyroid Analyzer |
Order Name: THYROID AN Test Number: 4502350 |
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| Test Description | ||
|---|---|---|
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Evaluates thyroid function with a TSH based algorithm in stable outpatients without pituitary or neuropsychiatric disease. For collection information refer to this test in the Test Directory. |
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Initial Testing |
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| Test Name | CPT Codes |
|---|---|
| TSH | 84443 |
Possible Additional Testing |
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| Test Name | CPT Codes |
| Free T3 | 84481 |
| Free T4 | 84439 |
| Interpretation | TSH (0.35-4.94) uIU/mL |
FREE T3 (1.71-3.71) pg/mL |
FREE T4 (0.70-1.48) ng/dL |
| Biochemical findings consistent with Euthyroid status. | 0.35-4.94 | ||
| Biochemical findings suggestive of Borderline Primary Hyperthyroidism. | 0.00-0.34 | >1.48 | |
| Biochemical findings suggestive of Borderline Primary Hypothyroidism. Depending on clinical status testing for Anti-Thyroid (microsomal) antibodies may be helpful. | 4.95-7.00 | <0.70 | |
| The presence of decreased TSH without increased normal Free T4 and with increased Free T3 (triiodothyronine) may represent biochemical evidence of Primary Hyperthyroidism associated with T3 overproduction (T3 Toxicosis). | <0.25 | >3.71 | </=1.48 |
| Although the TSH is marginally low, confirmatory Free T4 and Free T3 (triiodothyronine) fail to confirm Primary Hyperthyroidism. Patients with pituitary or hypothalamic dysfunction, older subjects, individuals suffering from depression or those receiving certain medications may show this effect. | <0.35 | </=3.71 | </=1.48 |
| Although the TSH is high, the Free T4 is not decreased as might be expected with Primary Hypothyroidism. Depending on clinical status, repeat TSH testing and/or testing for Anti-Thyroid (microsomal) antibodies may be helpful in confirmation. | >4.94 | >/=0.70 | |
| Biochemical findings consistent with Primary Hypothyroidism. If clinically indicated, testing for Anti-Thyroid (microsomal) antibodies is often helpful in confirmation. | >7.00 | <0.70 | |
| Biochemical pattern of probable Primary Hyperthyroidism. | </=0.09 | >1.48 | |
| Although the TSH is low, confirmatory Free T4 and Free T3 (triiodothyronine) fail to confirm Primary Hyperthroidism. Patients with pituitary or hypothalamic dysfunction, older subjects, individuals suffering from depression or those receiving certain medications may show this effect. | </=0.09 | </=3.71 | </=1.48 |