Chapter 10 - Imaging

Question 1

Indications for Xray

Answer 1

Line placement
Effectiveness of Treatments
Trauma - observe
Assess disease progression
Foreign body
Post/Pre - op
Tuberculosis

Question 2

Radiolucency

Answer 2

Black - air

Question 3

Radiopacity

Answer 3

White - bones, tumors, consolidation, fluid

Question 4

Posterioanterior view (PA)

Answer 4

back to front

Question 5

Anteroposterior view (AP)

Answer 5

front to back

Question 6

Lateral decubitus

Answer 6

lie on side suspected of having pleural effusion

Question 7

Ground glass

Answer 7

ARDS

Question 8

Bat wing

Answer 8

CHF

Question 9

Fluffy

Answer 9

Pulmonary Edema

Question 10

Honey comb

Answer 10

Fibrosis (sometimes ARDS)

Question 11

Meniscus sign

Answer 11

Pulmonary Effusion (blunt costalphrenic angle)

Question 12

Computed Tomography (CT)

Answer 12

Slices, 2-3 mm, Hi-res is thinner

Head, mental status, tumor, hemorrhage, lymph node vs tumor, need to see more from Xray

Question 13

Magnetic Resonance Imaging (MRI)

Answer 13

Head, chest or cardiac

no abdominal

Question 14

Contraindications for MRI

Answer 14

Screws
Pacemaker, Defibrillator
No metal in body, pockets or jewelry

Question 15

Ventilation Perfusion (V/Q Scan)

Answer 15

Not common anymore
CT w/Dye contrast is more common
Mainly for PE
2 Types
Radiotaupe medicine inhaled, hold breath
Radiotaupe IV
Nuclear Medicine for this procedure

Question 16

Angiography

Answer 16

Contrast dye
For PE, Hemorrhage or brain death
Cat scan or Interventional Radiology instead of surgery
Sterile/gown up, guide wire through femoral to pulmonary vascular system

Question 17

Contrast dye

Answer 17

Must know if patient is allergic or has renal failure

Question 18

Positron Emission Tomography (PET)

Answer 18

Not used very often, checks for tumors, FDG-18 (sugar water) injected, attracts to active tumors forms “hot spots” Benign tumors will not attract, used to assess tumor, malignancies, post-chemo, 1st time diagnosis