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Test Code: 932 | THYROID PEROXIDASE (TPO) ANTIBODIES |
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Performing Lab: | SMA Specialty Medical Lab |
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Clinical Significance: | The measurement of autoantibodies against thyroid peroxidase is useful in identifying patients with autoimmune thyroid disease. Levels of anti-TPO antibodies are increased in greater than 90% of patients with active autoimmune thyroiditis. Anti-TPO antibodies activate, complement, and are thought to be significantly involved in thyroid dysfunction and the pathogenesis of hypothyroidism.1 In patients with autoimmune thyroid disease, anti-TPO antibodies are present in nearly all patients with Hashimoto’s thyroiditis and in greater than 70% of patients with Graves’ disease. Anti-TPO antibodies are also present in patients with atrophic thyroiditis and primary myxedema. Low levels of anti-TPO antibodies can be detected in healthy individuals with normal thyroid function. The clinical significance of this has not been determined. Levels of anti-TPO antibodies are increased in women with postpartum thyroiditis. This condition occurs in 5% – 9% of postpartum women. The diagnosis of postpartum thyroiditis is based on the observation of abnormal thyroid function in a postpartum female with a positive anti-TPO antibody level. Although postpartum thyroiditis is associated with anti-TPO antibodies, 50% of anti-TPO positive women do not develop thyroid dysfunction. The measurement of anti-TPO antibodies can be useful in diagnosing maternal Graves’ disease or Hashimoto’s thyroiditis. |
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Reference Range | <60 U/mL |
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Preferred Specimen | Serum collected in Serum Separator Tube or Red Top Tube |
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Alternate Specimens | If a red-top tube is used, transfer separated serum to a plastic transport tube |
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Minimum Volume | 2 mL |
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Specimen Container | Gel Barrier Tube (Serum Separator Tube); Red Top Tube; Plastic Transfer Tube |
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Collection | Separate serum from cells within 45 minutes of collection |
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Transport Temperature | Refrigerated |
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Specimen Stability | Refrigerated: 2 days |
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Room temperature: 8 hours | |
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Causes for Rejection | Improper labeling; plasma; hemolyzed sample; grossly lipemic sample |
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Methodology: | Chemiluminescent |
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Setup Days: | Monday-Saturday |
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Setup Times: | Every Shift |
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Turnaround: | 24 hours |
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CPT Code(s): | 86376 |
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(The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.) | |
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Instrument | SIEMENS Atellica IM |
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Lab Tests
- 1,5-Anhydroglucitol-(1,5-AG)
- 6-AM (Heroin Metabolite)
- AFP
- Albumin
- Alcohol Biomarkers
- Alcohol Biomarkers, EIA
- Alkaline Phosphatase (ALP)
- Allergy Food Panel
- Allergy Profile 30
- Allergy Profile 40
- Allergy Profile 4409
- Allergy Profile 60
- Allergy Profile 70
- Allergy Profile 75
- Allergy Respiratory Panel
- ALT
- Amphetamines
- Amylase
- ANA Profile
- ANA Screen, (EIA)
- ANA with reflex Cascade
- Anti-Mullerian Hormone (AMH)
- ANTI-TPO
- Apo A
- Apo B
- ASO
- AST (SGOT)
- Barbiturates
- Basic Metabolic Panel
- Benzodiazepines
- Bilirubin direct
- Bilirubin Total
- BNP
- Body Fluid Culture
- BUN (Urea Nitrogen)
- BUPRENORPHINE
- C-Peptide
- CA 15.3
- CA 19.9
- CA125
- CA 27.29
- Calcitonin
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- Cannabinoids
- Carbon Dioxide (CO2)
- CBC (with Dif & Retic Count)
- CBC (without diferential)
- CBC(with diff&platelet count)
- CEA
- Childhood Allergy Screen
- Chloride
- Cholesterol
- CK
- CK-MB
- CMDC Drug Screen 10 with conf.
- Cocaine
- Coenzyme Q10
- Compliment C 3
- Compliment C 4
- Comprehensive Metabolic Panel
- Cortisol AM
- Cortisol PM
- Cotinine
- Covid 19, PCR
- Creatinine
- Creatinine, 24-hour urine
- Creatinine, Random Urine
- CRP
- CT NG, NAA
- Cystatin C
- Cytomegalovirus (CMV) IgG Abs
- Cytomegalovirus (CMV) IgM Abs
- D,L-Methamphetamine
- DHEA-S
- Digoxin
- Drug Screen 11 (1116B)
- Drug Screen 11 (1120)
- Drug Screen 11 (1189)
- Drug Screen 11 (1365)
- Drug Screen 11 (1372)
- Drug Screen 11 with conf.
- Drug Screen 13 (1116)
- Drug Screen 13 with conf.
- Drug Screen 14 with conf.
- Drug screen 16
- Drug Screen 17 with conf.
- Drug Screen 18 with conf
- Drug Screen 19
- Drug Screen 19 with conf.
- Drug Screen 3
- Drug Screen 5
- Drug Screen 6
- Drug Screen 7 (1116a)
- Drug Screen 7 (512A)
- Drug Screen 7 (512C)
- Drug Screen 8
- Drug Screen 9 (1120A)
- Drug Screen 9 (1120B)
- Drug Screen 9 (1120d)
- Drug Screen 9 (512)
- Drug Screen 9 with confirmation
- Drug Screen-13 with conf
- Drug Screen-18 with conf.
- Drugs Screen 13 (1366)
- EBV Panel
- Ecstasy (MDMA)
- EDDP (METHADONE METABOLITE)
- Electrolyte Panel
- ESR
- Estradiol
- EtG
- Ethanol
- Fasting Blood Sugar
- Ferritin
- Folate II
- Food Panel 30
- Fructosamine
- FSH
- Genital Tract Culture
- GGT
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- GTT, 100g
- GTT, 50g
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- GTT, Postprandial
- H.PILORY
- HCG, TOTAL
- HCG, Urine
- HDL
- Hemoglobin A1C
- Hemoglobin-Hematocrit
- Hepatic Function Panel
- Hepatitis A Ab Total
- Hepatitis A IgM Ab
- Hepatitis B Core Ab Total
- Hepatitis B Core IgM
- Hepatitis Bs Ab, Qualitative
- Hepatitis Bs Ab, Quantitative
- Hepatitis Bs Ag
- Hepatitis Bs Ag conf.
- Hepatitis C Ab
- Hepatitis Panel
- HgB A1c w-reflex to GlycoMark
- HISTOLOGY WORKUP
- HIV
- Homocysteine
- hsCRP
- HSV 1and2 IgG
- Immunoglobulin A
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- Immunoglobulin M
- Immunoglobulin Profile A,G,M
- Insulin
- Iron Saturation (%)
- IRON, TOTAL
- LDH
- LDL, Direct
- LH
- Lipase
- Lipid Panel
- Lithium
- Lp-PLA2 Activity Assay
- Lp(a)
- Lyme Screen wreflex to WB
- Magnesium
- Measles IgG.
- MEPERIDINE
- METHADONE
- Methylmalonic Acid
- Microalbumin
- Microalbumin-Creatinine Ratio
- Microalbumin, 24-hour urine
- MMR+V IgG
- MRSA-culture
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- Myoglobin
- NT-proBNP
- Occult Blood
- Opiates
- Oxycodone
- PGX
- Phencyclidine
- Phosphorus
- Platelet Count
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- Potassium
- Potassium, Plasma
- Prealbumin
- Progesterone II
- Prolactin
- Propoxyphene
- Protein Tota, 24-hour urine
- Protein Total
- PSA (total)
- PSA free
- PT INR
- PTH, 1-84
- PTT(activated)
- Renal Function Panel
- Respiratory Panel 30
- Respiratory Profile, PCR
- Reticulocyte Count
- Reverse T3
- Rheumatoid Factor
- RPR
- Rubella IgG
- SARS-CoV-2 IgG Antibodies
- SARS-CoV-2 IgM Antibodies
- SHBG
- Sodium
- Specimen Validity Test
- Sputum Culture
- T3 Total
- T3 Uptake
- T3, FREE
- T4 Free
- T4 Total
- TBG
- TCA
- Testosterone, Free
- Testosterone, Total
- THC-COOH
- THINPREP
- Throat Culture
- Thyroglobulin IgG Ab
- Thyroid Panel
- Thyroid Stimulating Immunoglobulins (TSI)
- TIBC
- Toxicology Oral Fluid
- Toxicology Urine
- Trace Elements (Rendom Urine)
- Trace Elements (Whole Blood)
- Tramadol
- Transferrin
- Treponema Pallidum Ab
- Tryglicerides
- TSH
- TV, NAA
- Uric Acid
- Uric Acid, 24-Hour Urine
- Uric Acid, random urine
- Urinalysis Complete
- Urine Culture Comprehensive
- Urine Culture Routine
- Valproic Acid
- Varicella IgG
- Vitamin A
- Vitamin B1
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- Vitamin B3
- Vitamin B5
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- Vitamin C
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- Vitamin D 1,25 OH
- Vitamin E
- Wound Culture