Investigation Name:Troponin I (TnI)

Accreditation:UKAS Accredited ISO15189:2022, on scope

Pathology Laboratory:Clinical Chemistry/ Biochemistry

Requestable Seperately?No

Units:ng/L

Minimum Sample Volume:1 mL

Expected Turnaround Time:1hr from receipt

Test Code:TNI0/TNI1

Sample Type:

Maximum Add on Time:3 days

Complex Reference Range:Refer to troponin I protocol/ discuss with the duty biochemist.
Interpretation: Provided the protocol is correctly followed, appropriate interpretative comments will be added to troponin I results based on the 'Management of suspected cardiac chest pain in the Emergency Department' guideline.

Collection Conditions / Other Information:Two samples must be collected at time 0h (usually on admission) and either 1 or 3 hours later.
There is no need for a second sample if first sample troponin I is <5ng/L (acute MI unlikely) or ≥64 ng/L (consistent with Myocardial Infarction), assuming the sample has been taken 3 or more hours after the onset of chest pain.
If you have any queries regarding interpretation, please contact duty biochemist.

Referred to Another Laboratory?No

Site Sample Tested:All acute sites.

Contact Number:01902 307 999 Ext 88266