When should blood samples for trough drug levels be collected? A. 30 minutes after peak levels B. 45 minutes before the next dose C. 1 to 2 hours after the last dose D. Immediately before the next dose is given

As part of homeostatic control by hormones, the metabolism of electrolytes and water balance is controlled in part by the renal system. What hormone synthesized by the kidneys affects water and electrolyte balance?

The urinary metabolite measured as an indicator of norepinephrine synthesis is: a. dopamine. b. homovanillic acid (HVA). c. serotonin. d. vanillylmandelic acid (VMA).

Which one of the following statements concerning steroid hormones is correct?

Which set of results is consistent with uncompensated respiratory alkalosis?

Epinephrine is also called: a. noradrenaline. b. adrenaline. c. metanephrine. d. serotonin.

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?