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Board Review Final sets a > mixed review deck 2 > Flashcards

mixed review deck 2 Flashcards

1
Q

The most common sites for subcutaneous drug injections (3)

A

abdomen
outer thighs or back of thighs
outer upper arms

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2
Q

Weighting factor for the liver

A

0.05

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3
Q

The ___ of the syringe holds the medication

A

barrel

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4
Q

What’s the effect of increased filtration on subject contrast?

A

Increased filtration = decreased subject contrast

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5
Q

The foot is placed on the ___ surface for a lateral projection of the first toe

A

medial

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6
Q

Chest projection used to differentiate lobes of the lungs, demonstrate interlobar fissures, and localize pulmonary lesions

A

lateral

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7
Q

What is the point where the needle attaches to the syringe?

A

the hub of the needle

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8
Q

What is the effect of a decrease in field size on quantum mottle?

A

Decreased field size = increased quantum mottle (because of decreased receptor exposure)

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9
Q

Name for an image display monitor that works by accelerating electrons toward a fluorescent screen

A

cathode ray tube (this is what most desktop display screens will typically use and is similar to the television picture tube in a television receiver)

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10
Q

The temporomandibular joint demonstrates what type(s) of movement?

A

both hinge (ginglymus) and gliding (it is termed a ginglymoarthrodial joint)

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11
Q

The sampling frequency of an imaging system determines the ___ size

A

pixel

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12
Q

Name the 7 bones that make up the orbit

A

Many Purple Zebras Eat Silly Little Frogs

maxilla, palatine, zygomatic, ethmoid, sphenoid, lacrimal, frontal

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13
Q

What grid error happens when the planes of the x-ray tube and grid surface are not parallel, and what is its appearance?

A

off-level grid error; shows acceptable brightness along one side but not on the opposite side

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14
Q

Government regulations require the x-ray tube to be within ___ degree(s) of perpendicular

A

1 degree

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15
Q

What is the speed of rotating anodes (in rpm) of low and high-speed rotating anodes?

A

Low-speed is 3,000 rpm
High-speed is 10,000 rpm

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16
Q

A fracture at the base of the first metacarpal is …

A

a Bennett fracture

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17
Q

A boxer’s fracture occurs at the ___ of the fifth metacarpal, often with ___ displacement of the distal fragment

A

neck of the 5th metacarpal; volar (palmar) displacement

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18
Q

The head of a metacarpal attaches to …

A

the finger joint (forms the MCP joint)

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19
Q

term for excess fluid in the blood

A

hypervolemia

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20
Q

Why doesn’t a mobile fluoroscopy unit require leaded drapes?

A

Because the mobile unit allows for more distance between the operator and the x-ray source

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21
Q

During a colostomy study of the large intestine, who should insert the catheter tip in the patient’s stoma? (2 answers)

A

the physician OR the patient (the stoma is very delicate, so the radiographer should not do this)

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22
Q

Why are k-shell characteristic x-rays the only characteristic x-rays useful for image production?

A

Because they are the only ones with enough energy to exit the tube and reach the patient.

23
Q

The basic difference between the sievert and the other units that measure radioactivity…

A

the sievert is only used for radiation protection purposes

24
Q

Evaluating an oblique L-spine, if the eye of the Scottie dog is projected on the anterior aspect of the vertebral body, this indicates that …

A

the patient was under-rotated

25
Q

When acquiring a PA axial projection of hte scaphoid using the Stecher method and a perpendicular central ray, the finger end of the IR is elevated …

A

20 degrees

26
Q

When an exposure is made at 69 kVp, what percent of the primary beam is made up of characteristic x-rays?

A

0 percent, because the k-shell binding energy is 69.5 keV, so 69 kV isn’t enough to remove a k-shell electron from orbit

27
Q

Photoelectric effect vs. Compton scatter: Which involves a lower energy x-ray photon? Which removes an inner shell electron from orbit, and which removes an outer shell electron?

A

Photoelectric: a relatively low-energy photon ejects an inner-shell electron from orbit, giving up all of its energy.

Compton: a high-energy photon ejects an outer-shell electron, giving up some of its energy.

28
Q

What do all of these have in common? expired drugs, aborted dosages, contaminated
personal protective equipment, and material used to clean up a chemotherapy spil

A

They are all considered chemotherapy wastes

29
Q

What is the effect of increased cineradiography frame rate on patient dose?

A

Increased patient dose

30
Q

The lumbar spine’s lordotic curve is considered (primary, or compensatory?)

A

Compensatory, because you aren’t born with it, it develops when you begin to walk

31
Q

Which spinal curvatures are considered primary and which are compensatory?

A

Primary: thoracic and sacrococcygeal (kyphotic curves); you’re born with them

Secondary (compensatory): cervical and lumbar (lordotic curves); they develop as you learn to walk

32
Q

Venipuncture: the needle is placed at a ___ degree angle to the vein

A

15 degrees

33
Q

fluoroscopic feature that maintains the SNR

A

AERC (automatic exposure rate control)

34
Q

Needles must be disposed of in …

A

a puncture resistant sharps container (uncapped)

35
Q

Minimum lead equivalent for thyroid shields

A

0.50 mm

36
Q

What type of dosimeter requires daily reading for accurate measurements?

A

pocket ionization chamber (pocket dosimeter)

37
Q

What types of radiation exposures would be appropriately monitored with a pocket dosimeter?

A

exposure to large quantities of radiation over short periods of time

38
Q

The Bridgeman method for imaging the pelvis demonstrates the …

A

pelvic inlet

39
Q

For an inlet view of the pelvis, what is the CR entry point and degree of angulation?

A

40 degrees caudad to the MSP at ASIS level

40
Q

The outlet view of the pelvis is a/k/a …

A

the Taylor method

41
Q

What is the CR entry point and recommended angulation for the Taylor method (pelvic outlet)?

A

enters 2 inches distal to superior border of pubic symphysis; for males, 20 to 35 degrees cephalad, for females, 30 to 45 degrees cephalad

42
Q

What is an impacted fracture of the posterolateral aspect of the humeral head, which can occur with dislocation of the humeral head?

A

a Hill-Sachs lesion (or Hill-Sachs defect)

43
Q

What is an anterior tear of the glenoid labrum?

A

a Bankart lesion

44
Q

Range of values for measuring DQE; what values indicate the greatest efficiency of a detector?

A

0-1

higher values = greater efficiency (1 = 100% DQE)

45
Q

Minimum lead equivalent requirement for the gonads

A

0.25 mm

46
Q

As bit depth increases, what happens to contrast resolution?

A

It also increases, because increased bit depth = increased number of gray shades displayed = increased ability to image low contrast objects (greater contrast resolution)

47
Q

Name for rough surface located on the medial aspect of the ilium, which articulates with the lateral aspect of the sacrum

A

auricular surface

48
Q

A barium enema bag should be hung no higher than …

A

24 inches above the patient’s rectum

49
Q

You should _____ heavy objects.

You should ______ patients.

A

Push objects.

Pull patients!! They are not objects!

50
Q

What is an NJ tube?
OG tube?

A

Naso-jejunal, orogastric

51
Q

Difference b/w tracheotomy and tracheostomy

A

Tracheotomy is creation of opening into the trachea!

Tracheostomy is creation of stoma and tube insertion

52
Q

auscultation

A

Listening thru a stethoscope

53
Q

Apple core or napkin ring appearance on a barium enema refers to indicates…

A

Colon cancer

54
Q

Elective booking limits discretionary abdominal radiography of women to…

A

The 1st 10 days following the onset of menses

Board Review Final sets a (12 decks)

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