Question

When the erect position is requested as part of an IVU, it is used to demonstrate

A. the adrenal glands.
B. the renal surfaces.
C. kidney mobility.
D. the bladder neck.

Answer 1

The erect position in an IVU is used to demonstrate kidney mobility by comparing kidney positions in different body postures.

Step-by-step explanation:

When the erect position is part of an Intravenous Urogram (IVU), it is primarily used to demonstrate kidney mobility. An IVU, also known as an intravenous pyelogram (IVP), is a radiographic procedure used to visualize the kidneys, ureters, and bladder. The erect position specifically helps in assessing the degree of kidney mobility by comparing the position of the kidneys when the patient is supine versus when they are standing up. This is useful to identify conditions such as nephroptosis (drooping kidney). Therefore, the correct answer to the question is C. kidney mobility.