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Lithium-169

Test info

Test name:

Lithium

Test number:

169

Excellian order number:

80178.0

Abbreviation:

LTH

Alternate names:

Li
Lithobid

Specimen

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Collection instructions:

Preferred draw time is 8 - 12 hours after the last dose
Immediately following collection, thoroughly mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate specimen type:

Sodium heparin (Na hep) plasma

Alternate collection container:

Dk green Sodium heparin (Na hep), no gel

Alternate collection instructions:

Immediately following collection, mix sample thoroughly by gently inverting 5 - 10 times, to prevent clotting

Alternate processing instructions:

Spin
Transfer plasma to a False bottom plasma/serum transport vial/tube (AHL), labelled as the appropriate plasma type, within two (2) hours of sample collection

Alternate transport container:

False bottom plasma/serum transport vial/tube (AHL)

Transport and stability:

Refrigerated (preferred) - 7 days

Ambient - 24 hours

Frozen - 6 months

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Improper anticoagulant or ratio
- Li Heparin plasma is not acceptable
Delay in transport
Improper storage temperature affecting results
Inappropriate timing of collection
Improper container
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performance

Performing lab:

AHL - Chemistry: C

Days set up:

Daily

TAT:

1 day

Method:

Colorimetric

Clinical and Interpretive info

Reference ranges:

0.6 - 1.2 mmol/L

Results that require action (critical):

> 1.5 mmol/L

Billing

CPT codes:

80178

Tracking

Date created:

11/30/2001

Revised date:

12/26/2022

Review date:

01/05/2024