Chapter 10 - Imaging Flashcards
Indications for Xray
Line placement Effectiveness of Treatments Trauma - observe Assess disease progression Foreign body Post/Pre - op Tuberculosis
Radiolucency
Black - air
Radiopacity
White - bones, tumors, consolidation, fluid
Posterioanterior view (PA)
back to front
Anteroposterior view (AP)
front to back
Lateral decubitus
lie on side suspected of having pleural effusion
Ground glass
ARDS
Bat wing
CHF
Fluffy
Pulmonary Edema
Honey comb
Fibrosis (sometimes ARDS)
Meniscus sign
Pulmonary Effusion (blunt costalphrenic angle)
Computed Tomography (CT)
Slices, 2-3 mm, Hi-res is thinner
Head, mental status, tumor, hemorrhage, lymph node vs tumor, need to see more from Xray
Magnetic Resonance Imaging (MRI)
Head, chest or cardiac
no abdominal
Contraindications for MRI
Screws
Pacemaker, Defibrillator
No metal in body, pockets or jewelry
Ventilation Perfusion (V/Q Scan)
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
Angiography
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
Contrast dye
Must know if patient is allergic or has renal failure
Positron Emission Tomography (PET)
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
