biological variability

biological variability

The natural variability in a lab parameter due to physiologic differences among subjects and within the same subject over time.
Types of Biological Variability
• Interindividual—Differences between subjects due to differences in diet, genetics or immune status.
• Intra-individual—Differences in the same subject over time due to diurnal cycles and other rhythms, biological repair mechanisms, dietary variables, ageing, etc.

biological variability

Lab medicine The variability in a lab parameter due to physiologic differences among subjects–interindividual BV, and in the same subject over time–intraindividual BV