CT Scan Brain MCQs For Govt Exam Practice : SSC, UPSC, AIIMS
1. What does CT stand for in a CT scan of the brain?
- A) Computerized Test
- B) Cranial Tomography
- C) Centralized Technique
- D) Cerebral Testing
Answer: B) Cranial Tomography
2. Which imaging technology is primarily used in a CT scan of the brain?
- A) X-rays
- B) Ultrasound
- C) MRI
- D) PET scan
Answer: A) X-rays
3. What does a CT scan of the brain help diagnose?
- A) Heart conditions
- B) Bone fractures
- C) Brain tumors and bleeding
- D) Lung diseases
Answer: C) Brain tumors and bleeding
4. What distinguishes a CT scan from an MRI of the brain?
- A) MRI uses X-rays, CT does not.
- B) CT provides clearer images than MRI.
- C) MRI is faster than a CT scan.
- D) MRI does not use radiation, CT does.
Answer: D) MRI does not use radiation, CT does.
5. How does a CT scan of the brain work?
- A) It uses magnets to produce images.
- B) It measures electrical activity in the brain.
- C) It uses radio waves to generate images.
- D) It takes multiple X-ray images from different angles.
Answer: D) It takes multiple X-ray images from different angles.
6. What type of contrast dye is commonly used in a CT scan of the brain to enhance imaging?
- A) Barium sulfate
- B) Iodine-based contrast
- C) Gadolinium
- D) Titanium dioxide
Answer: B) Iodine-based contrast
7. In a CT scan, which of the following indicates a denser structure in the brain?
- A) Brighter shades on the scan
- B) Darker shades on the scan
- C) Red-colored areas
- D) Yellow-colored areas
Answer: A) Brighter shades on the scan
8. Which of the following is NOT a common reason to perform a CT scan of the brain?
- A) Concussion
- B) Stroke
- C) Eye infections
- D) Traumatic brain injury
Answer: C) Eye infections
9. What is the approximate duration of a typical brain CT scan procedure?
- A) 5-10 minutes
- B) 30-45 minutes
- C) 1-2 hours
- D) 3-4 hours
Answer: A) 5-10 minutes
10. Which of these statements about CT scans is true?
- A) CT scans cannot detect tumors in the brain.
- B) CT scans can distinguish between benign and malignant brain tumors.
- C) CT scans use sound waves to create images.
- D) CT scans are always performed with the patient in a standing position.
Answer: B) CT scans can distinguish between benign and malignant brain tumors.
11. What is the primary advantage of a CT scan over an MRI in emergency situations?
- A) Higher resolution images
- B) No risk of radiation exposure
- C) Faster imaging time
- D) Better visualization of soft tissues
Answer: C) Faster imaging time
12. Which part of the brain does a CT scan focus on when diagnosing stroke symptoms?
- A) Cerebellum
- B) Hypothalamus
- C) Cerebrum
- D) Basal ganglia
Answer: D) Basal ganglia
13. What does a CT perfusion scan of the brain assess?
- A) Blood flow to the brain
- B) Brain electrical activity
- C) Oxygen levels in the brain
- D) Neuronal connectivity
Answer: A) Blood flow to the brain
14. What precaution might be necessary before a brain CT scan with contrast for a patient with kidney problems?
- A) Fasting for 24 hours
- B) Administering a higher dose of contrast
- C) Hydration and monitoring of kidney function
- D) Avoiding contrast altogether
Answer: C) Hydration and monitoring of kidney function
15. Which condition might prompt a follow-up CT scan after the initial brain scan?
- A) Normal pressure hydrocephalus
- B) Migraine
- C) Mild concussion
- D) Skull fracture
Answer: A) Normal pressure hydrocephalus
16. What type of information does a CT scan provide in cases of suspected intracranial bleeding?
- A) Structural abnormalities
- B) Blood flow dynamics
- C) Changes in brain chemistry
- D) Bone density measurements
Answer: A) Structural abnormalities
17. In a CT scan, what does the term 'slice thickness' refer to?
- A) The number of slices taken per minute
- B) The depth of tissue imaged in each slice
- C) The contrast level between different structures
- D) The width of the CT machine
Answer: B) The depth of tissue imaged in each slice
18. Which type of brain injury is best visualized using a CT scan?
- A) Axonal injury
- B) Concussion
- C) Diffuse axonal injury
- D) Subdural hematoma
Answer: D) Subdural hematoma
19. What role does a CT scan play in evaluating brain infections like meningitis?
- A) Identifying specific pathogens causing the infection
- B) Detecting swelling in the brain
- C) Ruling out other types of infections
- D) Determining the severity of the infection
Answer: B) Detecting swelling in the brain
20. What technology is used to reconstruct 3D images from the data obtained in a CT scan?
- A) Computer-aided design (CAD)
- B) Virtual reality (VR) software
- C) Magnetic resonance imaging (MRI)
- D) Advanced image processing algorithms
Answer: D) Advanced image processing algorithms
21. Which condition might require repeated CT scans of the brain over time to monitor progression or treatment effectiveness?
- A) Chronic migraines
- B) Parkinson's disease
- C) Multiple sclerosis
- D) Epilepsy
Answer: C) Multiple sclerosis
22. What specialized type of CT scan is used to assess blood vessels in the brain?
- A) Angiogram
- B) Myelogram
- C) Venogram
- D) Lymphangiogram
Answer: A) Angiogram
23. Which factor influences the amount of radiation exposure in a CT scan of the brain?
- A) Patient's age
- B) Patient's weight
- C) Number of scan slices
- D) Time of day
Answer: C) Number of scan slices
24. What distinguishes a CT angiography from a standard CT scan of the brain?
- A) Use of contrast dye
- B) Involvement of magnetic fields
- C) Longer scanning time
- D) Only performed in emergency situations
Answer: A) Use of contrast dye
25. In what unit is the radiation dose from a CT scan measured?
- A) Watts
- B) Sieverts
- C) Ampere
- D) Hertz
Answer: B) Sieverts
26. How does a CT scan assist in planning brain surgeries or interventions?
- A) Identifying the patient's blood type
- B) Mapping neural pathways
- C) Determining the patient's age
- D) Assessing the patient's pain level
Answer: B) Mapping neural pathways
27. What is the primary purpose of a CT scan in cases of suspected traumatic brain injury (TBI)?
- A) To provide pain relief
- B) To diagnose bacterial infections
- C) To rule out spinal injuries
- D) To detect bleeding or fractures
Answer: D) To detect bleeding or fractures
28. Which of the following is a potential risk associated with contrast dye used in CT scans?
- A) Hair loss
- B) Allergic reactions
- C) Increased appetite
- D) Improved sleep quality
Answer: B) Allergic reactions
29. What term is used to describe the ring-like structure in the CT scan that indicates a brain tumor?
- A) Halo sign
- B) Bull's eye
- C) Target lesion
- D) Satellite nodule
Answer: A) Halo sign
30. Which condition might prompt the need for both a CT scan and an MRI of the brain?
- A) Vertigo
- B) Cluster headaches
- C) Brain aneurysm
- D) Meningitis
Answer: C) Brain aneurysm
31. What specific type of brain injury can a CT scan accurately identify in shaken baby syndrome cases?
- A) Subarachnoid hemorrhage
- B) Subdural hematoma
- C) Concussion
- D) Diffuse axonal injury
Answer: B) Subdural hematoma
32. Which medical professionals are qualified to interpret CT scan results of the brain?
- A) Only neurologists
- B) Radiologists and neurosurgeons
- C) General physicians
- D) Nurses and technicians
Answer: B) Radiologists and neurosurgeons
33. What is the term for a type of CT scan that focuses on bone structures of the skull and face?
- A) Osteogram
- B) Chondrography
- C) Craniogram
- D) Sialography
Answer: C) Craniogram
34. How often might a patient with a brain tumor undergo CT scans to monitor the tumor's growth or response to treatment?
- A) Monthly
- B) Annually
- C) Biennially
- D) Quarterly
Answer: A) Monthly
35. What is the typical cost range for a CT scan of the brain in the India without insurance coverage?
- A) ₹100 - ₹500
- B) ₹4,000 - ₹5,000
- C) ₹10,000 - ₹15,000
- D) ₹500 - ₹1000
Answer: B) ₹4,000 - ₹5,000
36. What does the term "Hounsfield units" measure in a CT scan of the brain?
- A) Tissue density
- B) Blood pressure
- C) Brain temperature
- D) Electrical conductivity
Answer: A) Tissue density
37. Which neurological condition might require frequent CT scans to monitor fluid accumulation in the brain?
- A) Hydrocephalus
- B) Alzheimer's disease
- C) Bell's palsy
- D) Tourette syndrome
Answer: A) Hydrocephalus
38. What is the maximum weight limit for most standard CT scan tables used for brain imaging?
- A) 250 pounds (113 kg)
- B) 400 pounds (181 kg)
- C) 150 pounds (68 kg)
- D) 500 pounds (227 kg)
Answer: B) 400 pounds (181 kg)
39. What aspect of the brain does a CT scan primarily focus on during the evaluation of suspected hemorrhage?
- A) Cerebral cortex
- B) Ventricular system
- C) White matter
- D) Basal ganglia
Answer: D) Basal ganglia
40. In what decade was the CT scan first introduced for medical imaging purposes?
- A) 1950s
- B) 1970s
- C) 1990s
- D) 2000s
Answer: A) 1970s
41. Which type of stroke might a CT scan be most effective in diagnosing during the early stages?
- A) Hemorrhagic stroke
- B) Ischemic stroke
- C) Lacunar stroke
- D) Cryptogenic stroke
Answer: A) Hemorrhagic stroke
42. What is the term for the specialized software used to process and reconstruct CT scan images for better visualization?
- A) Radiologic algorithm
- B) Tomographic software
- C) Image reconstruction software
- D) Digital radiology suite
Answer: C) Image reconstruction software
43. Which part of the brain is primarily responsible for language and speech comprehension, often assessed via CT scans in cases of speech impairments?
- A) Frontal lobe
- B) Parietal lobe
- C) Temporal lobe
- D) Occipital lobe
Answer: C) Temporal lobe
44. What precaution is typically advised for individuals with claustrophobia before undergoing a CT scan of the brain?
- A) Sedation
- B) Avoiding any medications
- C) Consuming a large meal
- D) Listening to music during the scan
Answer: A) Sedation
45. Which condition might necessitate a follow-up CT scan after an initial brain injury assessment to detect delayed complications?
- A) Cerebral palsy
- B) Vertigo
- C) Post-concussion syndrome
- D) Chronic fatigue syndrome
Answer: C) Post-concussion syndrome
46. What term refers to the process of combining multiple CT scans to create a detailed three-dimensional image of the brain?
- A) Multi-slice fusion
- B) Tri-dimensional mapping
- C) Volume rendering
- D) Polygraphic synthesis
Answer: C) Volume rendering
47. Which type of contrast dye used in CT scans has a lower risk of allergic reactions but can still pose risks for patients with kidney issues?
- A) Barium sulfate
- B) Iodine-based contrast
- C) Gadolinium
- D) Titanium dioxide
Answer: B) Iodine-based contrast
48. What aspect of brain imaging does a CT scan primarily focus on when evaluating acute head trauma?
- A) Vascular abnormalities
- B) Axonal damage
- C) Skull fractures and bleeding
- D) Neural connectivity
Answer: C) Skull fractures and bleeding
49. Which population might require adjusted CT scan protocols due to their increased sensitivity to radiation exposure?
- A) Children
- B) Elderly individuals
- C) Athletes
- D) Pregnant women
Answer: A) Children
50. What term describes the process of comparing current CT scan images with previous ones to detect changes in brain structures over time?
- A) Radiographic correlation
- B) Sequential imaging
- C) Follow-up comparison
- D) Serial scanning
Answer: D) Serial scanning
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