A pyelogram was performed on a 43-year old male patient. The root word means?

A-trough,basin,pelvis.
B-ureter,urethra
C-bladder,urine
D-kidney,medulla

To determine the meaning of the root word in the term "pyelogram," we can break down the word into its components.

The term "pyelogram" consists of two parts: "pyelo-" and "-gram." The suffix "-gram" indicates a recording or a picture and is often used to refer to a diagnostic test.

The root word in "pyelogram" is "pyelo-," which refers to the pelvis or basin-like structure in the body. In this context, it specifically refers to the renal pelvis, which is part of the kidney.

So, the correct answer is A - trough, basin, pelvis, which represents the meaning of the root word in the term "pyelogram."