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Radiology courses > Semester 1 Test > Flashcards

Semester 1 Test Flashcards

1
Q

When radiographing the AP forearm, the hand should be

A

Supinated

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2
Q

Which method of the wrist asks that you adjust the IR so that the finger end is elevated 20 degrees to place the Scaphoid at a right angle to the CR

A

Stecher

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3
Q

What are the routine projections for the wrist

A

PA, PA oblique (lateral rotation), lateral

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4
Q

When positioning a patient for a PA chest, the shoulders are rolled forward to

A

Move the scapula outward and laterally

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5
Q

Why do we flex the digits when positioning for a PA wrist projection

A

To decrease OID of the carpals to the IR

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6
Q

If you had to use 50 mAs for an x-ray of the abdomen, select the best possible technique

A

500ma, .1s because it has the lowest exposure time

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7
Q

Which of the following are essential projections of the elbow

A

AP, AP external oblique, Lateral

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8
Q

What factor is considered to be the major cause of x-ray tube failure

A

Poor heat dissipation

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9
Q

The coronoid process is used as a positioning landmark for the

A

Elbow

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10
Q

Before making an exposure why must you hold the rotor button in

A

Allow rotor to accelerate to its designed RPM

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11
Q

At the time of the exposure, what are two ways to determine if you have gotten an exposure

A

Audible beep

Visual indicator

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12
Q

In order to reduce the apprehension of a patient, a student technologist could

A

Talk to the patient

Explain the exam

Inform the patient about the progress of the exam

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13
Q

What can be done to reduce the amount of exposure a student technologist recieves

A

Distance

Lead apron

Lead shielding

Not holding the patient

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14
Q

The malleoli are used as landmarks when positioning a

A

AP Ankle

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15
Q

Where is the CR when positioning the AP knee

A

1/2 inch inferior to the apex of the patella

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16
Q

What are the essential projections for a calcaneus and the degree of angulation

A

Lateral and axial (plantodorsal) 40 degrees cephalic

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17
Q

As a frequency goes up, wavelength is shorter (T/F)

A

True

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18
Q

There is more ripple in a high frequency generator than there is in a three phase generator

A

True

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19
Q

The autotransformer in the X ray circuit

A

Allows varible voltage to be supplied to the x ray circuit

Has both major and minor components

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20
Q

A diode allows alternating current to flow in both directions (T/F)

A

False

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21
Q

If the transformer has fewer turns on the secondary than on the primary

A

It is a step down transformer

22
Q

Which light has the highest frequency

A

Ultarviolet

23
Q

The “anode heel effect”

A

States that the energy on the cathode side of the tube is higher than the anode

Says that the smaller the anode angle, the more pronounced the heel effect

24
Q

The actual focal spot is smaller than the effective focal spot (T/F)

A

False

25
Q

A diode is also called a semiconductor (T/F)

A

True

26
Q

Electricity is matter, X-rays are energy (T/F)

A

True

27
Q

According to the wave equation

A

Wavelength and frequency are inversely porportional

If you know wavelength, you can calculate the frequency

All E-M radiation travels at the speed of light

28
Q

Ultrasound uses e-m radiation to produce images (T/F)

A

False

29
Q

Amperes defines how much energy electrons have as they travel through a wire (T/F)

A

False

30
Q

An autotransformer

A

Allows various voltage amounts to be tapped off the main voltage source

Can be a step-up voltage from the power company

31
Q

The KVP meter measures amps and the mA meter measures voltage (T/F)

A

False

32
Q

What combination of KVP and mAs would be the kindest to the patient

A

High KVP, low mAs

33
Q

The focusing cup is negatively charged to focus the electron cloud into a narrow stream (T/F)

A

True

34
Q

Which organs of the abdominal cavity lie in the retroperitoneal space

A

Kidneys and pancreas

35
Q

The pisiform is a pea-shaped bone situated anterior to the

A

Triquetrum

36
Q

Where is the fluoroscopy x-ray tube located

A

Under the table

37
Q

If the patient is lying supine on the table with their head to your left, which side of the patient is closest to you

A

Right

38
Q

For all projections of the ankle, the CR is perpendicular and the foot is in ___-flexion

A

Dorsal

39
Q

A large, rounded, elevated process on a bone is called

A

Tuberosity

40
Q

The term that refers to parts farthest from the point of attachment, point of reference, or away from the center of the body is

A

Distal

41
Q

What are the signs and symptoms of inflammation

A

Calor

Rubor

Tumor

42
Q

All of the following are malignant bone tumors

A

Osteosarcoma

Chondrosarcoma

Ewing’s Sarcoma

43
Q

A mass with irregular borders and radiating spicules are the image characteristics of a

A

Malignant pulmonary neoplasm

44
Q

Which disease of white blood cells is defined as a neoplastic proliferation of white blood cells

A

Leukemia

45
Q

What is the essential role of platelets

A

Clotting

46
Q

Which are used to describe fractures

A

The direction of the fracture lines

Number of fracture fragments

The integrity of overlying skin

47
Q

Which cardiac disease is defined as a condition in which the heart cannot pump blood adequately to fulfill the circulatory needs of the body

A

Congestive heart failure

48
Q

How would you position the arm in order to obtain a lateral view of the humerus in the supine position

A

Internal rotation

49
Q

What kind of timer is the least used and may now be considered obsolete

A

Synchronous

50
Q

Which joint permits movement in two directions at right angles to each other

A

Hinge

51
Q

Full wave rectification uses____diodes

A

4

Radiology courses (68 decks)

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