The drug procainamide is prescribed to treat cardia arrhythmia. What biologically active liver metabolite of procainamide is often measured simultaneously?

Calcium may be measured by all the following methods EXCEPT:

All of the following conditions are associated with hyperuricemia except:

A patient’s admission work up included the following form a serum sample:Na+                 140      mmol/LK+                   4.5       mmol/LCl-                   85        mmol/LCa++               10.0     mg/dLMg++              2.0       mmol/L (mEq/L)Which of the following would be considered abnormal?

A 53-year-old man notices the whites of his eyes seem a bit yellow, there is swelling in his abdomen, and he is often fatigued. He tells his physician that he enjoys “a few” martinis every night and sometimes more on the weekend. Upon physical examination, the physician notes decreased weight, elevated blood pressure, jaundice, and ascites, and laboratory results indicate decreased albumin, low platelet count, increased prothrombin time, and increased serum liver enzymes with AST activity higher than ALT. All viral hepatitis and cholestasis testing are negative. What is the likely diagnosis?

What enzyme is a good replacement for alkaline phosphatase so as not to get a high reading from bone disease, pregnancy, or childhood growth?

A patient with the bilirubin test results “increased unconjugated bilirubin, normal conjugated bilirubin, no bilirubin in the urine”, has which of the following bilirubin disturbances?

Which of the following hormones is produced by the kidneys in response to tissue hypoxia?

An example of a tricyclic antidepressant is:

Which of the following specific gravity determinations would be most likely to correlate with a light yellow urine?