URR 71 Flashcards

(41 cards)

1
Q

___ mass = high frequency transducer

A

superficial

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2
Q

Renal biopsy on obese patient = ____ transducer

A

low frequency curvilinear

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3
Q

The transducer needs to be able to penetrate well enough to see the mass, while still providing ___

A

acceptable resolution

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4
Q

The highest frequency that provides the necessary ___ and ___ should be used

A

penetration
far field size

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5
Q

Primary purpose of preliminary scan before invasive procedure

A

identify the target and its relationship to surrounding structures

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6
Q

Identifying the target and its relationship to other structures is used to determine ___, ___, ___, and ___

A

needle choice (length and gauge)
skin entry point
needle trajectory
tracking technique

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7
Q

After an invasive procedure, discard needles and biopsy device in ___

A

biohazardous receptacle

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8
Q

After an invasive procedure, soak the transducer in ____ solution for the manufacturer recommended amount of time

A

glutaraldehyde

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9
Q

1 advantage of sonography guided biopsy

A

real time visualization of needle passing through AOI

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10
Q

Advantages of Sonography Guided biopsy

A

minimally invasive
no radiation
accurate diagnosis in 95% cases
cost effective
prevents surgical removal of tissue
allows for multiple patient positions and approaches
portabl

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11
Q

disadvantages of sonography guided biopsy

A

isoechoic lesions
sound attenuation when evaluating deep masses in obese patients
unable to evaluate GI tract or bone lesions

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12
Q

situations which makes a particular treatment or procedure absolutely inadvisable

A

absolute contraindications

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13
Q

Contraindications for sonography guided procedures

A

known allergy to injectate
lack of appropriate equipment or skill to complete procedure
unsafe biopsy route
uncooperative patient
unmanageable coagulopathy

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14
Q

Uncontrolled movement by the patient during a procedure can result in ___ or ___

A

laceration
hemorrhage

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15
Q

a condition which makes a particular treatment or procedure possibly inadvisable

A

relative contraindications

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16
Q

use of blood thinners, aspirin, or antibiotics

A

coagulotherapy

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17
Q

When ___ must be injected, it can raise blood sugar levels; can be a contraindication for patients with diabetes mellitus

A

corticosteroids

18
Q

Risk for complications with invasive procedures increases with ____ and ___

A

increased needle size
highly vascular organs

19
Q

most common major complication of biopsy of a solid abdominal organ

20
Q

complications from invasive procedure

A

hemorrhage
pain
vasovagal response
hematoma formation
swelling
peritonitis
biloma, urinoma, or lymphocele
pneumothorax
infection
needle track seeding
death

21
Q

when a tissue sample is removed, tumoral cells can be released into the blood or lymphatic system causing the formation of satellite tumors and/or metastasis

A

needle track seeding

22
Q

All require the use of sterile technique and administration of local anesthetic at the puncture site

A

FNA
fine needle capillary technique
core biopsy
percuteaneous aspiration/drainage

23
Q

small needle used with a syringe to draw out cells or fluid from a superficial mass; much less risk of complication than core biopsy

A

fine needle aspiration

24
Q

With FNA, samples are evaluated by ___

25
needle is moved in and out of tissue to obtain cells; aspirates a smaller, but more concentrated sample of cells than FNA
fine needle capillary technique
26
uses automated device with hollow core needle; removes a core sample of tissue within the hollow needle
core biopsy
27
Core biopsy samples are evaluated by:
histology
28
___ helps to maintain a constant path for the needle but limits the choice of biopsy path/needle angle
Needle guide
29
Core biopsy requires the assessment of __ and __ levels prior to the procedure
PT INR
30
uses a fine needle for serous fluid; catheter for thicker, loculated fluid and abscesses
percutaneous aspiration/drainage
31
__, __, and __ cyst drainage usually performed for symptom relief due to size
liver renal ovarian
32
A catheter can be left in for many weeks to drain an abscess but requires ___ 3 to 4 times a day to prevent clogging of the catheter
saline irrigation
33
Ultrasound can be used to assess progress of abscess drainage through serial exams every __-__ days
3 4
34
Primary course of treatment for a pyogenic liver abscess, not utilize for amebic and hydatid abscesses
percutaneous aspiration/drainage
35
used to drain renal abscesses >3cm
percutaneous aspiration/drainage
36
percutaneous aspiration/drainage requires assessment of __ and __ levels prior to the procedure
PT INR
37
___ must be used to put the sterile sheath on the probe
sterile gloves
38
___ gel should be used during procedure
sterile
39
If the Sonographer is scanning during the procedure, the must be wearing _____; someone else who is not sterile must be __
sterile gloves and gown operating machine
40
In sonography guided ultrasound, us is used to ___ and ___ of the needle
locate real time location movement
41