An ischemic stroke is the most common type of stroke, and it's usually caused by clogged arteries from atherosclerosis or clots. Atherosclerosis involves fatty deposits in the blood vessels. Two types of clots can be responsible for an ischemic stroke: cerebral thrombus, where the clot stays in the brain, and the cerebral embolism, where the clot breaks loose and travels via the blood stream to the brain. Other causes of ischemic strokes are an abnormal heart valve, endocarditis and a mechanical heart valve, according to the National Institutes of Health.
Muscle Weakness
Muscle weakness is a sign of an ischemic stroke. After the stroke, the patient may feel very weak, and have problems moving some limbs. The muscle weakness, according to the National Institutes of Health, can occur anywhere on the body.
Paralysis
A dangerous sign of an ischemic stroke is paralysis, according to the Merck Manual. The resulting paralysis may be on one side of the body or encompass the patient's entire body.
Abnormal Sensation
Patients may feel an abnormal sensation after an ischemic stroke. Examples include decreased sensation, numbness or tingling. However, the abnormal sensation occurs on only one side of the body.
Difficulty Speaking
Language abilities can be affected by an ischemic stroke. Patients have problems speaking and understanding spoken language. Other language problems include difficulty reading and writing.
Confusion
Confusion can occur after a stroke, as well as other changes in consciousness. Other consciousness symptoms include coma, lethargy, sleepiness, stupor, unconsciousness and withdrawal, according to the National Institutes of Health.
Vision Problems
After an ischemic stroke, the patient can have vision problems. Examples of stroke-related vision problems include decreased vision or a loss of vision.
Dizziness and Nausea
Some patients may feel ill after a stroke. Symptoms include dizziness and nausea, as well as vomiting. However, some patients may also develop headaches, according to the National Institutes of Health. These headaches can start suddenly and occur when the patient wakes up or is lying flat on his back.
Balance and Coordination
Another possible symptom of an ischemic stroke is a problem with balance and coordination. Patients will have problems moving and regulating activity of their limbs.


