GUIDE & PRACTICE QUESTIONS
1. Describe the significance of the thymus in the mediastinum and its role in
the immune system.
The thymus is involved in the production of red blood
cells. The thymus serves as a storage site for lymphatic
fluid.
The thymus produces hormones that regulate metabolism.
The thymus is crucial for the development of T-cells, which are
essential for adaptive immunity.
2. If a radiographer mistakenly positions the finger at an angle instead of
parallel to the image receptor during a lateral projection, what effect might
this have on the resulting image?
The joint spaces will be clearly visible and open in the resulting
image.
The image will be unaffected, as positioning does not influence joint
space visibility.
The image will show elongation of the phalanx, providing a better
view of fractures.
The joint spaces may appear closed or obscured in the resulting
image.
3. According to NCRP Report No.116, the annual occupational equivalent dose
limit to localized areas of the hands is
,150 mSv
50 mSv
, 15 mSv
500 mSv
4. KVp accuracy should be within:
10 %
2%
5%
1%
5. Which anatomical plane should be perpendicular to the image receptor
for an AP projection of C1-C2?
coronal
occlusal
mentomeatal
interpupillary
6. An acceptable PA chest exam is taken using 300mA, .008 seconds
and 110Kvp. If it is repeated using an AEC that has a minimum response
time of 10ms which of the following exposure factors would be
appropriate?
600 mA .004 seconds
110kvp 400mA .006 seconds
110kvp 200 mA .012
seconds 110Kvp
7. If a terminally ill patient expresses a desire to volunteer in the hospital as
a way to cope with their illness, which stage of grief are they likely
experiencing, and how might this influence their treatment plan?
, anger; it may result in a more aggressive treatment plan to combat
their frustration.
denial; it may require the healthcare team to provide more
information about their condition.
bargaining; it may lead to discussions about palliative care options
that support their wish to contribute.
depression; it may necessitate psychological support to address
their feelings of despair.
8. Evaluation of ______ is a primary indication for arthrography of the shoulder.
fracture of the surgical neck of the humerus
torn deltoid ligament
broken humeral head
partial or complete tears of the rotator cuff
9. A client is commenced on intravenous therapy: Volume: 1 Litre To run
over: 12 hours IV set 60 drops/mL What is the drip rate?
103 drops/min
83 drops/min
65 drops/min
125 drops/min
10. Describe the purpose of a focused grid in radiology and how it affects
the x-ray beam.
The focused grid is designed to align with the divergence of
the x-ray beam to minimize primary beam cut-off.