The sperm of a fruit fly can be as long as the body of the male fly, about 1.1 mm. On the other hand, of the vast number of mammals humans have one of the smallest sperm cells, measuring only 40 microns long. Rats produce one of the largest sperm at 170 microns long.
The following medications may cause potassium levels to rise: 1  Nonsteroidal anti-inflammatory drugs (NSAIDs): People who have poor kidney function and take NSAIDs are at higher risk. 2  ACE inhibitors: These drugs treat high blood pressure, heart disease, diabetes, some chronic kidney diseases, migraines, and scleroderma.
Low potassium can occur for many reasons. Use of water pills (diuretics), diarrhea, and chronic laxative abuse are the most common causes of low potassium levels. Illness and other medications may also lower potassium levels. Woman and African-Americans are at higher risk of developing hypokalemia. Other causes of hypokalemia include: Certain kidney disorders such as renal tubular acidosis (for example, chronic kidney failure and acute kidney failure)