Electrocardiogram (ECG or EKG) Index
An electrocardiogram, or "ECG" "EKG," the acronyms more commonly used for this non-invasive procedure to record the electrical activity of the heart. An EKG is generally performed as part of routine physical exam, part of a cardiac exercise stress test, or part of the evaluation of symptoms of palpitations, fainting, shortness of breath, dizziness, fainting, or chest pain.
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Blood clots can occur in the venous and arterial vascular system. Blood clots can form in the heart, legs, arteries, veins,...learn more »
In This Article
Polycythemia (High Red Blood Cell Count) Article
- Polycythemia facts
- What is polycythemia?
- What are normal ranges of hematocrit, red cell counts, and hemoglobin?
- What causes polycythemia?
- What are the causes of primary polycythemia?
- What are the common causes of secondary polycythemia?
- Can other sources of erythropoietin (EPO) cause polycythemia?
- What is relative polycythemia?
- What are the risk factors for polycythemia?
- What is stress polycythemia?
- What are the symptoms of polycythemia?
- When should I see a doctor about polycythemia?
- How is polycythemia diagnosed?
- What is the treatment for polycythemia?
- What are the complications of polycythemia?
- Can polycythemia be prevented?
- What is the outlook (prognosis) for polycythemia?
Dizziness is a symptom that is often applies to a variety of sensations including lightheadedness and vertigo. Causes of...learn more »
In This Article
- Dizziness facts
- Introduction to dizziness (feeling dizzy)
- What are some common causes of dizziness?
- Low blood pressure
- Postural or orthostatic hypotension
- High blood pressure
- Endocrine diseases
- Heart conditions
- Vasovagal syncope
- Dizziness and vertigo
- What are the symptoms experienced when a person feels dizzy?
- When should I call the doctor for dizziness?
- How is dizziness diagnosed?
- How is vertigo diagnosed?
- How is dizziness treated?