What is the difference between a CVA (Stroke) and TIA (Transient Ischemic Atack)?
A.
CVA is a temporary neurologic deficit and a TIA is more long-term deficit
B.
There is no difference
C.
TIA is a temporary neurologic deficit and a CVA is more long-term deficit
D.
CVA results from temporary impairment of blood flow and TIA is long-term impairment
The correct answer and Explanation is :
The correct answer is:
C. TIA is a temporary neurologic deficit and a CVA is more long-term deficit
Explanation:
A Transient Ischemic Attack (TIA) and a Cerebrovascular Accident (CVA), commonly known as a stroke, are both conditions that affect the brain’s blood supply but differ significantly in their duration and potential outcomes.
Transient Ischemic Attack (TIA):
- Definition: A TIA is often described as a “mini-stroke.” It occurs when there is a temporary blockage in one of the brain’s blood vessels, leading to a brief period of decreased blood flow.
- Duration: The symptoms of a TIA typically last for a few minutes to a few hours and usually resolve within 24 hours.
- Symptoms: The symptoms can mimic those of a stroke, including sudden weakness, numbness, or difficulty speaking, but they are transient.
- Prognosis: While TIAs do not cause permanent damage, they are a significant warning sign. Individuals who experience a TIA are at a higher risk for a future stroke. It is crucial to address the underlying risk factors and receive appropriate treatment to prevent a full-blown stroke.
Cerebrovascular Accident (CVA) or Stroke:
- Definition: A CVA or stroke occurs when there is a prolonged interruption of blood flow to a part of the brain. This can result from either a blockage (ischemic stroke) or a burst blood vessel (hemorrhagic stroke).
- Duration: The effects of a stroke can be long-lasting or permanent. Unlike a TIA, the symptoms of a stroke persist and can lead to significant neurological deficits.
- Symptoms: Symptoms include sudden weakness or numbness on one side of the body, confusion, difficulty speaking, and vision problems. The severity depends on the location and extent of brain damage.
- Prognosis: The outcomes of a stroke vary. Some individuals may recover partially or fully with rehabilitation, while others may experience lasting disabilities. Prompt medical intervention is crucial to reduce the extent of damage and improve recovery chances.
In summary, while both TIA and CVA involve interruptions in blood flow to the brain, a TIA is temporary with a lower risk of permanent damage, whereas a CVA can result in long-term or permanent neurological deficits.