NMTCB Anatomy & Physiology for Nuclear Medicine 3

Question 1

In a PET/CT scan for lung cancer staging, the mediastinal lymph node station that lies directly adjacent to the tracheal bifurcation (carina) is classified as which station?

Accepted Answer

Station 7 (subcarinal)

Answer

Station 2 (upper paratracheal)

Answer

Station 4 (lower paratracheal)

Answer

Station 10 (hilar)

Question 2

The adrenal glands sit atop the kidneys. Which physiological layer of the adrenal cortex produces mineralocorticoids (aldosterone) and would be visualized in adrenal cortical scintigraphy?

Accepted Answer

Zona glomerulosa

Answer

Zona fasciculata

Answer

Zona reticularis

Answer

Adrenal medulla

Question 3

In a GFR measurement using Tc-99m DTPA, tracer is filtered exclusively at which anatomical structure within the nephron?

Accepted Answer

Glomerulus

Answer

Proximal convoluted tubule

Answer

Loop of Henle

Answer

Collecting duct

Question 4

Which cerebral artery territory, when infarcted, produces contralateral hemiplegia with cortical signs, and is the most common location of ischemic stroke detected on brain perfusion imaging?

Accepted Answer

Middle cerebral artery (MCA)

Answer

Posterior cerebral artery (PCA)

Answer

Anterior cerebral artery (ACA)

Answer

Basilar artery

Question 5

In a V/Q lung scan, the lingula is a segment of which lobe and appears in which imaging projection?

Accepted Answer

Left upper lobe, best seen on left lateral view

Answer

Right middle lobe, best seen on right lateral view

Answer

Left lower lobe, best seen on posterior view

Answer

Right upper lobe, best seen on anterior view

Question 6

During a hepatobiliary (HIDA) scan, bile produced in the liver travels through the biliary tree. What is the correct sequence of bile flow from hepatocyte to duodenum?

Accepted Answer

Canaliculi → bile ducts → common hepatic duct → common bile duct → duodenum

Answer

Canaliculi → common bile duct → common hepatic duct → duodenum

Answer

Gallbladder → hepatic duct → canaliculi → duodenum

Answer

Common hepatic duct → canaliculi → common bile duct → duodenum

Question 7

In bone scintigraphy, the epiphyseal growth plates in pediatric patients show increased tracer uptake because of which physiological process?

Accepted Answer

Active osteoblastic remodeling and increased blood flow in the physis

Answer

Increased osteoclastic activity at the growth plate

Answer

Periosteal reaction from normal weight bearing

Answer

Calcification of cartilage in the zone of provisional calcification only