A CT brain without contrast is typically ordered by a doctor to evaluate and diagnose various conditions affecting the brain, including head injuries, stroke, bleeding in the brain, tumors, and infections.
When this test is required
A CT brain without contrast may be requested by a doctor in emergency situations when a patient has experienced a sudden onset of symptoms such as severe headache, confusion, dizziness, loss of consciousness, or paralysis. It may also be ordered as part of routine diagnostic testing for patients with known or suspected neurological conditions.
What the Test Detects
A CT brain without contrast produces detailed images of the brain and its structures, including the skull, blood vessels, and soft tissues. This helps doctors to diagnose various conditions and determine the best course of treatment.
Preparation for the Test
There is generally no special preparation required for a CT brain without contrast. However, patients may be asked to remove any metal objects, jewelry, or clothing that may interfere with the imaging. They may also be asked to fast for a certain period of time prior to the test.
Sample Requirements
No sample is required for a CT brain without contrast.
Additional Notes
As with any medical test, there are some risks associated with a CT brain without contrast, including exposure to ionizing radiation. However, the benefits of the test usually outweigh the risks, especially in emergency situations where time is of the essence. Your doctor will be able to discuss the risks and benefits of the test with you in more detail.
