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Thrombin Time

Ordering Info & Methodology

Test Code

Cerner Synonyms

TT

Thrombin Time

Turn Around Time

Methodology

Available on a STAT basis.

Ordering Guide

Specimen Requirements

Sample Type

Collection Container

Alternate Collection Containers

Citrated Plasma

Light Blue

1.0 mL

Add on stability
This is the length of time after sample collection that this analyte is stable. Test can be added to a previously collected sample if the time since collection is less than the add on stability time.

Minimum Volume

Add On Stability

Collection and Shipping Requirements

Freeze. Send frozen on dry ice. Must arrive at SPH frozen. Thawed specimens will be rejected.

Reference Intervals

Female Reference Interval

Age Category
Reference Interval
units
≥ 0 y
<20
s

Male Reference Interval

Age Category
Reference Interval
units
≥ 0 y
<20
s
Additional Notes

Measurement Uncertainty (MU)
Every laboratory value is an estimate of the true concentration of substance. MU is the 95% confidence interval around that estimate. 95% of the time, the true concentration will be within the range of the reported value ±MU. This value is based on analytical variability (precision) and does not reflect other factors such as sample collection and handling which may also affect the result.

Example

Reported sodium = 140 mmol/L
Sodium MU = 1%
Expanded uncertainty = 140 mmol/L ± 1% or 140mmol/L ± 1.4 mmol/L
Interpretation - the true value of sodium in the sample is in the range 138.6-141.4 mmol/L, with 95% confidence.

Measurement Uncertainty

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