Pathology Handbook

Liver Function Tests

Synonyms

LFTs

Clinical Indications

Diagnosis and monitoring of liver disease

Test Includes

Total Protein, Albumin, Globulin
Total Bilirubin
Alkaline Phosphatase
ALT

Request Form

Request on ICE

Availability

On request.

Specific Criteria

Should not be repeated within 3 days unless specifically indicated e.g. paracetamol overdose.

Turnaround Time

Same day

Specimen

Serum in yellow top (SST) tube

Volume

2 ml

Container

Vacutainer gold top

Causes for Rejection

Unlabelled sample

Reference Ranges

Total Protein: 60 - 80 g/L
Albumin: 35 - 50 g/L
Globulin: Adult: 20 - 35 g/L
Total Bilirubin: Less than 20 umol/L. .
Alkaline Phosphatase: Adult: 30 - 130 IU/L. Children: higher during growth - see report for ranges.
ALT: Less than 40 IU/L (action limit is 5-65 iu/L)