ACTH
Test Mnemonic
ACTH
CPT Codes
- 82024 - QTY (1)
LOINC ®
2141-0
Aliases
- Adrenocorticotropic Hormone Plasma
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | EDTA (Lavender) | Place specimen on ice after draw. | Frozen | Separate plasma from cells ASAP. Transfer plasma to to CCL transport tube and freeze immediately. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | 4 weeks |
| Ambient | 4 hours. On Ice. |
Days Performed
Sun - Sat
Turnaround Time
8 hours
Methodology
| Name | Description |
|---|---|
| Electro Chemiluminescence Immunoassay (ECLIA) |
Reference Range
| ACTH | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | Morning hours 7:00 to 10:00 am: 7.2-63.3 | pg/mL |
Special Info
Patients taking a biotin dose of up to 5 mg/day should refrain from taking biotin for 4 hours prior to sample collection. Patients taking a biotin dose of 5 to 10 mg/day should refrain from taking biotin for 8 hours prior to sample collection. Patients taking a biotin dose > 10 mg/day should consult with their physician or the laboratory prior to having a sample taken. Clinicians should consider biotin interference as a source of error, when clinically suspicious of the laboratory result.
Clinical Info
For diagnostic purposes only, the results obtained should always be used in combination with the clinical exam, patient medical history, and other findings.
Clinical Limitation
Under ACTH 1-24 medication, ACTH measurement is not recommended, due to negative interference with the sandwich assay.