A urine specimen collected on an apparently healthy 25-year old man shortly he finished eating lunch was cloudy but showed normal results on a multiple reagent test strip analysis.  The most likely cause of the turbidity is:

Refer to the following illustration Patient values Reference values total protein 7.3 g/dL 6.0 – 8.0 g/dL albumin 4.2 g/dL 3.6 – 5.2 g/dL alpha 1 0.0 g/dL 0.1 – 0.4 g/dL alpha 2 0.9 g/dL 0.4 – 1.0 g/dL beta 0.8 g/dL 0.5 – 1.2 g/dL gamma 1.4 g/dL 0.6 – 1.6 g/dL This electrophoresis pattern is consistent with:

In the Jaffe reaction, creatinine reacts with:

Which one of the following trace elements, when combined with an enzyme, is essential for stabilization of extracellular matrixes such as collagen and elastin?

A patient with glomerulonephritis is most likely to present with the following serum results:

Considering the classification of hormones by structure, an example of a steroid hormone would be

The gold standard confirmation method for positive drug screens that gives greatest accuracy is:

The troponin complex consists of:

The finding of a large amount of uric acid crystals in a urine specimen from a 6-month-old boy

To aid in the diagnosis of skeletal muscle disease, which of the following serum enzyme measurements would be most use?