QUIZ 21.10.2024

QUIZ 21.10.2024

Quiz

 

1. What does the acronym "CT" stand for?
   1.   Clinical Test
   2.   Computed Tomography
   3.   Cross-sectional Technique
   4.   Cardiac Tomography
2. Which of the following is a key component of a CT scanner?
   1.   Radiofrequency coils
   2.   X-ray tube
   3.   Ultrasound transducer
   4.   Gamma camera
3. What type of imaging is CT primarily used for?
   1.   Functional imaging
   2.   Structural imaging
   3.   Molecular imaging
   4.   Electrical imaging
4. In CT imaging, what does "windowing" refer to?
   1.   Adjusting the contrast and brightness
   2.   The type of radiation used
   3.   The size of the patient
   4.   The angle of the scan
5. Which windowing technique is best for visualizing lung structures?
   1.   Soft tissue window
   2.   Bone window
   3.   Lung window
   4.   Mediastinal window
6. What does a "high attenuation" area on a CT scan usually indicate?
   1.   Air
   2.   Fluid
   3.   Bone or calcification
   4.   Soft tissue
7. What is the purpose of using contrast material in CT scans?
   1.   To increase radiation dose
   2.   To enhance the visibility of structures
   3.   To shorten scan time
   4.   To minimize motion artifacts
8. Which of the following is a common artifact seen in CT imaging?
   1.   Motion artifact
   2.   Partial volume artifact
   3.   Beam hardening artifact
   4.   All of the above
9. What contrast agent is typically used for CT angiography?
   1.   Barium sulfate
   2.   Iodine-based contrast
   3.   Gadolinium
   4.   Carbon dioxide
10. Which condition is a CT scan particularly useful for diagnosing?
    1.   Asthma
    2.   Appendicitis
    3.   Acute sinusitis
    4.   Conjunctivitis
11. What is the role of CT in lung cancer screening?
    1.   To determine lung function
    2.   To detect nodules early
    3.   To evaluate blood flow
    4.   To measure lung capacity
12. In trauma cases, which CT scan is often performed first?
    1.   CT head
    2.   CT abdomen
    3.   CT chest
    4.   CT pelvis
13. What is a major concern when using CT scans repeatedly?
    1.   Cost
    2.   Equipment malfunction
    3.   Radiation exposure
    4.   Patient discomfort
14. What is the recommended action if a patient has a known allergy to iodine contrast?
    1.   Proceed without contrast
    2.   Use a higher dose of contrast
    3.   Pre-medicate with steroids
    4.   Use gadolinium instead
15. Which of the following populations should be carefully evaluated before a CT scan?
    1.   Infants
    2.   Pregnant women
    3.   Elderly patients
    4.   All of the above
16. What is the purpose of dual-energy CT?
    1.   To reduce scan time
    2.   To differentiate materials based on atomic number
    3.   To enhance image resolution
    4.   To visualize moving organs
17. What does "multi-detector CT" (MDCT) refer to?
    1.   A CT scan that uses multiple X-ray tubes
    2.   A CT scan that captures multiple slices simultaneously
    3.   A CT scan that combines with MRI
    4.   A CT scan for multiple body parts
18. In what scenario is a CT enterography particularly useful?
    1.   ) Evaluating lung nodules
    2.   Diagnosing gastrointestinal diseases
    3.   Assessing bone density
    4.   Imaging the heart
19. A patient presents with severe headaches. Which CT scan would you consider first?
    1.   CT neck
    2.   CT abdomen
    3.   CT brain
    4.   CT chest
20. For a suspected pulmonary embolism, which CT scan is the gold standard?
    1.   CT brain
    2.   CT chest with pulmonary embolism protocol
    3.   CT abdomen
    4.   CT spine
21. Which finding on a CT scan suggests the presence of a hemorrhagic stroke?
    1.   Hypodense areas
    2.   Hyperdense areas
    3.   No findings
    4.   Edema
22. CT scan shows a "ground-glass opacity." What condition is commonly associated with this finding?
    1.   Lung cancer
    2.   Pneumonia
    3.   Pulmonary fibrosis
    4.   COVID-19
23. If a CT scan reveals a "thumbprint sign," what condition might be suspected?
    1.   Intussusception
    2.   Ulcerative colitis
    3.   Cholecystitis
    4.   Diverticulitis
24. What is the most common reason for performing a CT scan in oncology?
    1.   Screening for cancer
    2.   Staging cancer
    3.   Treating cancer
    4.   Monitoring treatment response
25. Which CT feature is indicative of aortic dissection?
    1.   Widening of the mediastinum
    2.   Ground-glass opacities
    3.   Pleural effusion
    4.   Pulmonary nodules