Count, platelet: The calculated number of platelets in a volume of blood, usually expressed as platelets per cubic millimeter (cmm) of whole blood. Platelets are the smallest cell-like structures in the blood and are important for blood clotting and plugging damaged blood vessels. Platelet counts are usually done by laboratory machines that also count other blood elements such as the white and red cells. They can also be counted by use of a microscope. Normal platelet counts are in the range of 150,000 to 400,000 per microliter (or 150 – 400 x 109 per liter). These values many vary slightly between different laboratories.
Counterpulsation: A technique that synchronizes the external pumping of blood with the heart’s cycle to assist the circulation and decreasing the work of the heart. Counterpulsation pumps when the heart is resting to increase blood flow and oxygen to the heart. Counterpulsation stops pumping when the heart is working to decrease the heart’s workload and […]
- Cousin marriage
Cousin marriage: Marriage involving cousins. Everyone carries rare recessive alleles, rare genes that are generally innocuous in the heterozygous state but that in the company of another gene of the same type are capable of causing an autosomal recessive disease. We are all reservoirs for genetic disease. First cousins, as noted, share a set of […]
Courier: In the drug trade, someone who internally conceals and transports an illicit drug. Also called a body packer. See: Body packer.
- Cow milk allergy
Cow milk allergy: Casein and whey are the two major proteins of human milk and most milk-based formulas. Some (less than 8% of) infants have a true allergy to the cow proteins that are in milk-based formulas. Infants with true cow milk allergy can develop abdominal pain, diarrhea, rectal bleeding, skin rash, and wheezing when […]
- Cowper's gland
Cowper’s gland: A tiny gland in the male, also known as the bulbourethral gland. Named after the English anatomist William Cowper (1666-1709). See: Bulbourethral gland.