Anna collected several samples of a mineral that she believed were calcite. she also collected samples of quartz, talc, and gypsum. which one property of calcite could she use to identify her samples as calcite rather than another mineral?

a. streak color
b. sample color
c. surface luster
d. acid reaction

This patient undergoes a gallbladder sonogram due to epigastric pain. the report indicates that the visualized portions of the liver are normal. no free fluid noted within morisons pouch. the gallbladder is identified and is empty no evidence of wall thickening or surrounding fluid is seen there is no ductal dilation. the common hepatic duct and common bile duct measure 0.4 and 0.8 cm respectively. the common bile ductmeasurement is at the upper limits of normal what cpt code in icd-10 cm code was used