Clinical Chemistry Test 2

An increase in serum acetone is indicative of a defect in the metabolism of:

An infant with diarrhea is being evaluated for a carbohydrate intolerance. His stool yields a positive copper reduction test and a pH of 5.0. It should be concluded that:

Blood samples are collected at the beginning of an exercise class and after thirty minutes of aerobic activity. Which of the following would be most consistent with the post-exercise sample?

What is the best method to diagnose lactase deficiency?

The different water content of erythrocytes and plasma makes true glucose concentrations in whole blood a function of the:

In a specimen collected for plasma glucose analysis, sodium fluoride:

Which of these serum constituents is unstable if a blood specimen is left standing at room temperature for 8 hours before processing?

One international unit of enzyme activity is the amount of enzyme that will, under specified reaction conditions of substrate concentration, pH and temperature, cause utilization of substrate at the rate of:

In spectrophotometric determination, which of the following is the formula for calculating the absorbance of a solution?

The most specific method for the assay of glucose in all body fluids utilizes:

Which of the following is an example of a glucose-specific colorimetric method?

Increased concentrations of ascorbic acid inhibit chromogen production in which of the following commonly-used glucose methods?

In the hexokinase method for glucose determination, the actual end product measured is the:

At midmorning, blood glucose levels fall and stimulate the secretion of which hormone?

Deficiency of this enzyme is the most frequent cause of galactosemia:

High levels of which lipoprotein class are associated with decreased risk of accelerated atherosclerosis?

The most consistent analytical error involved in the routine determination of HDL is caused by:

If the LDL is to be calculated by the Friedewald formula, what are the 2 measurements that need to be carried out by the same chemical procedure?

The chemical composition of HDL corresponds to:

In familial hypercholesterolemia, the hallmark finding is an elevation of: