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29 Cards in this Set

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US pregnancy
location, number fetus, gestational age, growth rate, placenta, fetal position
info necessary for radiologist
test required, history, differential diagnosis
interfere w/ x-rays
metallic objects, retained contrast material, overlying structures or bowel content, position, movement
radiographic densities
gas, fat, fluid, bone, metal
complications of special procedures
perforation, infection, embolus
reasons to request special procedures
cardiac catherization (to get an angiogram), interventional procedures
reasons to request CT scans
diagnosis/anatomy (brain, chest, abdomen, bone, blood vessels, soft tissues); procedure guidance; tx determination; follow-up
reasons to request fluoroscope x-rays
motion of organs; movement of contrast material
reasons to request tomography
focus on specific structures
dangers of contrast media use
latex allergies; barium sulfate; iodine containing materials; non-ionic materials
reasons to request common x-rays
GI studies; genitourinary studies; cardia/vascular studies; myelography; other/parenteral
reasons to request skeletal x-rays
fracture/dislocations; infection; arthritis; metastasis
reason to request abdominal x-rays
abdominal pain/trauma; organs; intraluminal air; extraluminal air; abdominal calcifications; soft tissue mass; free fluid; bowel wall
reading the chest x-ray
mental image of patient; soft tissue (including diaphragm); lungs (interstitium, airways, pleura); blood vessels; special interest areas; mediastinum; chest wall
reason to request chest x-ray
pulmaonary; mediastinum; pleura; chest wall; diaphragm
interfere w/ medical ultrasound
air; gas; obesity; patient movement; skin contact
principles of ultrasound
B scan; M scan; real time; doppler; color flow doppler; duplex scanning
advantages of ultrasound
usually non-invasive; painless; portable; real time evaluation w/ dynamic images; inexpensive
reason to request ultrasound
anatomical pictures; physiology info; assessment of structure/pregnancy; decision making regarding intervention; assessment of blood flow/cardia function; invasive procedures
info reported by ultrasound
sonographic appearance; measurements; differential dx; most likely dx
characteristics of simple cyst
anechoic; smooth borders; posterior enhancement; thorough enhancement
EKG
cardiac chambers; cardiac valves; cardiac cardiac wall motion; pericardium; blood flow
gynecology (ultrasound)
irregular bleeding; pelvic pain; pelvic mass; urinary incontinence; many gynecologic disorders
fetal health (ultrasound)
heart rate; breath ring; movement; muscle tone; amniotic volume
PET
type of nuclear imaging; used in many areas of medicine (heart, brain, cancer)
advantages of MRI
soft tissue contrast and differentiation; reduced need for contrast material; evaluation of blood flow; subtraction of background tissue
reasons for MRI
provides anatomical & physiology info; aids in evaluation of: neural tissue & surrounding structures, soft tissue, bone & joints, blood flow
problems related to MRI
related to movement of implants; heating of metallic objects; patient status; obesity
MRI
evaluation of headache or other neurologic signs of CNS lesions, neck, and back pain for disk herniation; bones and joints after traumatic injury or because of chronic pain