On the bus. On the bus, you can pay for a one-way fare in cash. Exact change is required (no change is given). Buses accept $1 bills and most coins (no half-dollars). Transfer is not available when paying in cash on the bus. If you need to transfer, use a Ventra Card or Ticket. More Information. How-To Guide: Buying Fares.
In an emergency situation like a stroke, it's important for doctors to first confirm the type of stroke to provide the appropriate treatment. Imaging tests like a CT scan or MRI can help determine the type of stroke; blood flow tests like cerebral angiography, can help evaluate the size and location of blockages.
Also, the stroke region may be too small to be seen on CT scan, or it may be in a part of the brain (brain stem or cerebellum) which the CT scan does not image well. Depending on the results of the CT scan, your doctor may wish to obtain additional testing, including an MRI scan. CT scan uses X-rays to take pictures of your skull and brain. The patient lies in a tunnel-like machine while the inside of the machine rotates and takes X-rays of the head from different angles.