Hyperkalemia
Elevated potassium in the blood. Hyperkalemia can be caused by taking excessive amounts of potassium, by medications, tissue trauma, and by diseases such as kidney failure. Hyperkalemia may not produce any symptoms, but severe hyperkalemia can lead to potentially fatal arrythmias of the heart.
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- Hyperlexia
The presence of advanced ability to read compared to the ability to understand spoken language. Children with hyperlexia have a precocious ability to read words, far above what would be expected at their chronological age or an intense fascination with letters or numbers; significant difficulty in understanding verbal language; and abnormal social skills, difficulty in […]
- Hyperlipidemia
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- Hypermagnesemia
Excess magnesium in the blood. Kidney disease is one of the main causes of hypermagnesemia. Persons with impaired kidney function should be especially careful about their magnesium intake because they can accumulate magnesium, which is dangerous and sometimes fatal.
- Hypermnesia
Abnormally strong memory of the past. As compared to hypomnesia and amnesia. From hyper- + the Greek mneme, memory.
- Hypermobility syndrome
A common benign childhood condition involving hypermobile joints (that can move beyond the normal range of motion). Symptoms include pains in knees, fingers, hips, and elbows. The affected joints may sprain or dislocate. Scoliosis (curvature of the spine) is more frequent. Usually improves with adulthood. Also called the joint hypermobility syndrome.