The pulse rate is most often taken at the wrist. It measures the number of pulsations in the radial artery each minute.
This most often reflects heart rate.
- Rate, sed
A sedimentation rate, or “sed rate”, is a blood test that detects and is used to monitor inflammation activity. It is measured by recording the rate at which red blood cells (RBCs) sediment in a tube over time. It increases (the RBCs sediment faster) with more inflammation.
- Rattlesnake bite
A poisonous bite by a member of the pit viper family. All rattlesnakes are venomous and secrete poisonous venom. Rattlesnakes are the main cause of death from snake bites in the United States. The emergency treatment of rattlesnake bites is essential. With proper care, rattlesnake bites are rarely fatal. Do not use a tourniquet or […]
- Rate, sedimentation
A blood test that detects and monitors inflammation in the body. It measures the rate at which red blood cells (RBCs) in a test tube separate from blood serum over time, becoming sediment in the bottom of the test tube. The sedimentation rate increases with more inflammation. Also called the erythrocyte sedimentation rate. Abbreviated as […]
- Raw egg
Uncooked, unpasteurized egg. Salmonella enteritidis, a harmful bacterium, can be transmitted from infected hens directly to the interior of their eggs before the shells are formed. Even eggs with clean, uncracked shells can be infected. The CDC (Centers for Disease Control and Prevention) now estimate that 1 egg in 20,000 may be contaminated. Although the […]
- Raynaud's disease
A condition that results in discoloration of the skin on the fingers and/or toes when a person is exposed to changes in temperature or to emotional events. Raynaud’s disease, also known as primary Raynaud’s phenomenon, can accompany other diseases; when it does, it is called Raynaud’s phenomenon or secondary Raynaud’s phenomenon. The skin discoloration occurs […]