Turnaround times
The quoted turnaround time is from sample receipt in the laboratory, to results authorisation in the Laboratory Information Management system. The times do not include transport of specimen to the laboratory or the administrative process to print and post/email reports. Service users must allow for transport and reporting time when ordering tests.
Clinical background:
Apo B is important in lipoprotein transport, being essential for the secretion of triglyceride-rich lipoproteins from the liver and gut. One molecule of apo B is present in each chylomicron, VLDL or LDL particle. There are two forms of apo B – apoB100 and apoB48. ApoB48 is secreted by enterocytes and is the major protein constituent of chylomicrons. ApoB100 is the major component of all lipoproteins except chylomicrons and HDL. The majority of circulating apoB100 is found in LDL. ApoB100 is the ligand for the LDL receptor on hepatocytes and in peripheral tissues. Elevated apo B100 is a marker of increased numbers of LDL particles and a risk factor for cardiovascular disease.
Specimen container paediatric:
Serum (SST or plain tube)
Specimen container adult:
Serum (SST or plain tube)
Minimum volume paediatric:
0.5 mL
Minimum volume adult:
1 mL blood
Sample stability:
Unseparated sample: unknown
Separated sample: 24 hours at 15-25°C, 8 days at 2-8°C, 3 months at -20°C
Transport requirements:
Ambient temperature
Availability:
24/7, sample analysed at RVI
Reference ranges:
Men: 0.66-1.33 g/L
Women: 0.60-1.17 g/L
Other info:
Lithium heparin plasma sample also acceptable