|Plasma Separator Tube 4.5 mL
Call laboratory for additional acceptable specimen collection containers.
3 mL whole blood in light green top tube or TWO
24 hrs/day, 7 days a week, including holidays.
1 hour (upon receipt in laboratory)
0-10 years: 0.09-6.29 ng/mL
11-17 years: 0.08-10.8 ng/mL
18 years and older: 0.01-2.47 ng/mL
0-10 years: 0.12-7.79 ng/mL
11-17 years: 0.12-8.05 ng/mL
18 years and older: 0.13-9.88 ng/mL
This assay may be significantly impacted by high-dose biotin (>5 mg
dose) taken within previous 12 hours. High concentrations of biotin
may lead to falsely decreased results. These concentrations may be
found in patients taking over-the-counter supplements with biotin
content much higher than nutritional requirements for biotin.
Specimens should not be collected until at least 12 hours after the
Hemolysis: No significant interference up to an H index of 500
(approximate hemoglobin concentration: 500 mg/dL).
Lipemia: No significant interference up to an L index of 1500
(approximate triglycerides concentration: 1500 mg/dL). Note there is
poor correlation between turbidity and triglyceride
Icterus: No significant interference up to an I index of 25
(approximate conjugated and unconjugated bilirubin concentration: 25