R Terms

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Racial Differences
The incidence of prematurity, risk of complications and survival is affected by race. For example, African-American babies have a higher ... Read More
Receptive Language
In young children, receptive language refers to the communication that a child can understand not just through what is spoken, but also ... Read More
Reflux
See gastro-esophageal reflux.
Relaxin
Relaxin is a hormone produced during pregnancy which causes the joints and ligaments to soften and stretch. This occurs in preparation for ... Read More
Reproductive endocrinologist
A specialist in the hormonal disorders that affect reproduction.
Respiratory distress syndrome (RDS)
See hyaline membrane disease
Respiratory syncytial virus (RSV)
The most common cause of bronchiolitis in young children. Bronchiolitis is an infection of the bronchial tubes that causes rapid breathing, ... Read More
Reticulocyte Count
Blood test that measures the percentage of newly made red blood cells. Anemia (having too few red blood cells) is often a concern with ... Read More
Retinopathy of Prematurity (ROP)
Retinal scarring and abnormal growth of the blood vessels into the retina of the eye. The retina is the layer of cells in the back of the eye. ... Read More
Retrolental Fibroplasia (RLF)
An old name for retinopathy of prematurity.
Reye syndrome
Reye syndrome is sudden (acute) brain damage (encephalopathy) and liver function problems of unknown cause. The syndrome has been ... Read More
Rh incompatibility
An incompatibilty of blood types. Blood types are commmonly characterized by the ABO typing system and the Rh system. An incompatiblity ... Read More
RhoGam
RhoGam or rho-immunoglobulin (also called anti-Rh or anti-D immunoglobulin) is an injectable blood product used to protect an Rh-positive ... Read More
Rickets
Rickets is a condition that causes soft, weak bones in children. It usually occurs when they do not get enough vitamin D, which helps growing ... Read More
Ritodrine
Medication used to stop or slow down contractions of the uterus during premature labor. It is not as often used as it was several years ago. ... Read More
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