Study guide test 4 Flashcards
What is the primary advantage of an US guided intervential procedure?
provides for continuous real time visualization of the biopsy
What is the common indication for a biopsy?
confirm a malignancy in a mass
What are some contraindications for biopsies?
What lab test is used to evaluate the effects of heparin antihistamines on the blood clotting process?
PTT
National safety patient standards mandate a time out be performed before beginning any procedure, why?
What are post biopsy complications?
heart failure
A higher percentage of positive cells is observed in what portion of a thyroid mass?
small calcifications
What is the best way to recognize the tip of a needle with US?
tip appears as a hyperechoic area
Which part of the kidney is typically biopsied in a renal transplant procedure?
upper pole
What are advantages of using US guided procedures?
fixed angles when using needle guides
What are the limitations of US guided procedures?
International normalized ratio (INR) was developed because of the variable results of what lab test?
PT
What needle gauge is used for FNA’s?
20-25
What biopsy uses an automatic spring loaded device?
core biopsy
What is the role of cytopathology team?
minimize the number of core samples, ensure enough diagnostic tissue is obtained, increase the percentage of biopsies
The wait time after discontinuing the use of aspirin before a procedure:
5-7 days
Preprocedural image should document the patient’s name and what?
time, date, and needle path
What is the most common organ biopsy?
liver
What is the reason for doing a renal parenchymal biopsy?
proteinuria
When we do a renal parenchymal biopsy, what part of the kidney are we biopsying?
lower pole
What complication of a renal biopsy (specific to above)?
hematuria
What is the position for a patient undergoing a thoracentesis?
sitting
What do biopsies of the spleen carry an increased risk for?
hemorrhage
What patient position is commonly used for a prostate biopsy?
left lateral decubitus
Which laboratory test would indicate a liver lesion?
Alpha-fetoprotein (AFP)
A bursa provides what function?
provides fluid protection to areas subject to friction
If you see a baker’s cyst, what would that be an example of?
communicating bursa
Infringement of the median nerve in the wrist results in what disorder?
carpal tunnel syndrome
What tendon is responsible for dorsal and plantar flexion of the foot?
achilles tendon
What type of tendonitis causes pain over the lateral wrist?
De Quervain tendonitis
Complete tear of the muscle with straight forward appearance of a retracted hyperechoic muscle surrounded by a hematoma is called:
the clapper and the bell
Support and strength of a joint resolve from what structure?
ligament
Whencompared with muscle, a normal nerve is what type of sonographic appearance?
hyperechoic
Artifacts in musculoskeletal US include what?
reverbation, shadowing, anistroph
(not mirror image)
Achilles tendon is at an increased risk for injury because of why?
limited blood supply
Indications for risked sonography include what?
swelling, foreign body, tinels sign
(not thompson sign)
Acute rotator cuff tear may be caused by what?
bicep tendon rupture, fall, shoulder dislocation
(not yrs of playing tennis)
Proximal portion of a muscle?
origin
Tendonitis is seen more often in shoulder, wrist, and what other joint?
elbow
What is the easiest tendon to image with sonography in the adult shoulder?
biceps
What is the most common site for achilles tendon tear?
distal
What is the largest tendon in the body?
achilles
Patients with carpal tunnel syndrome, when they are experiencing pain, its called a certain sign?
tinels sign
What is the sonographic normal appearance of muscles?
homogeneous
What is the hypoechoic halo around a tendon called?
normal synovial sheath
