Protoporphyrins that chelate iron are called:

A. Hemin.
B. Hemoglobin.
C. Heme.
D. Hemosiderin.

C

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What type of procedure involves the removal of staghorn renal calculus?

a. Percutaneous chemolysis b. Percutaneous nephrostolithotomy c. Ultrasonic lithotripsy d. Nephrolithotomy or pyelolithotomy

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In a basic solution:

A. the concentration of  OH equals that of  H.
B. the concentration of OH is less than the H concentration.
C. the concentration of  H is greater than OH concentration.
D. the concentration of OH is greater than the H concentration.

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