QUIZ 21.10.2024
Quiz
What does the acronym "CT" stand for?
- Clinical Test
- Computed Tomography
- Cross-sectional Technique
- Cardiac Tomography
- Which of the following is a key component of a CT scanner?
- Radiofrequency coils
- X-ray tube
- Ultrasound transducer
- Gamma camera
- What type of imaging is CT primarily used for?
- Functional imaging
- Structural imaging
- Molecular imaging
- Electrical imaging
- In CT imaging, what does "windowing" refer to?
- Adjusting the contrast and brightness
- The type of radiation used
- The size of the patient
- The angle of the scan
- Which windowing technique is best for visualizing lung structures?
- Soft tissue window
- Bone window
- Lung window
- Mediastinal window
- What does a "high attenuation" area on a CT scan usually indicate?
- Air
- Fluid
- Bone or calcification
- Soft tissue
- What is the purpose of using contrast material in CT scans?
- To increase radiation dose
- To enhance the visibility of structures
- To shorten scan time
- To minimize motion artifacts
- Which of the following is a common artifact seen in CT imaging?
- Motion artifact
- Partial volume artifact
- Beam hardening artifact
- All of the above
- What contrast agent is typically used for CT angiography?
- Barium sulfate
- Iodine-based contrast
- Gadolinium
- Carbon dioxide
- Which condition is a CT scan particularly useful for diagnosing?
- Asthma
- Appendicitis
- Acute sinusitis
- Conjunctivitis
- What is the role of CT in lung cancer screening?
- To determine lung function
- To detect nodules early
- To evaluate blood flow
- To measure lung capacity
- In trauma cases, which CT scan is often performed first?
- CT head
- CT abdomen
- CT chest
- CT pelvis
- What is a major concern when using CT scans repeatedly?
- Cost
- Equipment malfunction
- Radiation exposure
- Patient discomfort
- What is the recommended action if a patient has a known allergy to iodine contrast?
- Proceed without contrast
- Use a higher dose of contrast
- Pre-medicate with steroids
- Use gadolinium instead
- Which of the following populations should be carefully evaluated before a CT scan?
- Infants
- Pregnant women
- Elderly patients
- All of the above
- What is the purpose of dual-energy CT?
- To reduce scan time
- To differentiate materials based on atomic number
- To enhance image resolution
- To visualize moving organs
- What does "multi-detector CT" (MDCT) refer to?
- A CT scan that uses multiple X-ray tubes
- A CT scan that captures multiple slices simultaneously
- A CT scan that combines with MRI
- A CT scan for multiple body parts
- In what scenario is a CT enterography particularly useful?
- ) Evaluating lung nodules
- Diagnosing gastrointestinal diseases
- Assessing bone density
- Imaging the heart
- A patient presents with severe headaches. Which CT scan would you consider first?
- CT neck
- CT abdomen
- CT brain
- CT chest
- For a suspected pulmonary embolism, which CT scan is the gold standard?
- CT brain
- CT chest with pulmonary embolism protocol
- CT abdomen
- CT spine
- Which finding on a CT scan suggests the presence of a hemorrhagic stroke?
- Hypodense areas
- Hyperdense areas
- No findings
- Edema
- CT scan shows a "ground-glass opacity." What condition is commonly associated with this finding?
- Lung cancer
- Pneumonia
- Pulmonary fibrosis
- COVID-19
- If a CT scan reveals a "thumbprint sign," what condition might be suspected?
- Intussusception
- Ulcerative colitis
- Cholecystitis
- Diverticulitis
- What is the most common reason for performing a CT scan in oncology?
- Screening for cancer
- Staging cancer
- Treating cancer
- Monitoring treatment response
- Which CT feature is indicative of aortic dissection?
- Widening of the mediastinum
- Ground-glass opacities
- Pleural effusion
- Pulmonary nodules