Common use of REFERENCE VALUES Clause in Contracts

REFERENCE VALUES. Lipoprotein cholesterol values vary according to age and sex26, and wide variations among different geographical locations and races have been reported6.. Therefore, it is essential that each laboratory establish its own expected range for its particular population. A total of 54 patients with normal total cholesterol (total cholesterol ≤ 200 mg/dL) were tested using the QuickGel Cholesterol system. These patients have not been differentiated by age, race or sex. These values should only serve as guidelines. HDL (%) 11.8 - 45.0 Lp(a)-C% 0.0 - 12.2 VLDL (%) 0.0 - 20.3 LDL (%) 47.6 - 77.5 Each laboratory should establish its own range for age, sex and race. The QuickGel Cholesterol system separates the major lipoprotein classes. The alpha band which migrates the farthest toward the anode corresponds to HDL. The next band, pre-beta, corresponds to VLDL. If a band appears between alpha and pre-beta, it is the Lp(a)-C band and should be added to the LDL quantitation when reporting the total LDL value.27 It does not appear in every sample at measurable concentrations. The slowest moving beta band corresponds approximately to LDL. Chylomicrons, if present, remain at the origin. H ▇▇▇▇▇ densitometers will automatically calculate and print the relative percent and the absolute values for each band when the specimen total cholesterol is entered. Refer to the Operator’s Manual provided with the instrument. Figure 1: A scan of a QuickGel Cholesterol pattern.

REFERENCE VALUES. Lipoprotein cholesterol values vary according to age and sex26, and wide variations among different geographical locations and races have been reported6.. reported.6 Therefore, it is essential that each laboratory establish its own expected range for its particular population. A total of 54 patients with normal total cholesterol (total cholesterol ≤ 200 mg/dL) were tested using the QuickGel Cholesterol system. These patients have not been differentiated by age, race or sex. These values should only serve as guidelines. HDL (%) 11.8 - 45.0 Lp(a)-C% 0.0 - 12.2 VLDL (%) 0.0 - 20.3 LDL (%) 47.6 - 77.5 Each laboratory should establish its own range for age, sex and race. The QuickGel Cholesterol system separates the major lipoprotein classes. The alpha band which migrates the farthest toward the anode corresponds to HDL. The next band, pre-beta, corresponds to VLDL. If a band appears between alpha and pre-beta, it is the Lp(a)-C band and should be added to the LDL quantitation when reporting the total LDL value.27 It does not appear in every sample at measurable concentrations. The slowest moving beta band corresponds approximately to LDL. Chylomicrons, if present, remain at the origin. H ▇▇▇▇▇ Helena densitometers will automatically calculate and print the relative percent and the absolute values for each band when the specimen total cholesterol is entered. Refer to the Operator’s Manual provided with the instrument. ­ Figure 1: A scan of a QuickGel Cholesterol pattern.