Category: R

  • Rheumatic disease

    The affliction characterized by the inflammation of muscles, joints, and various bodily tissues is a distinctive form of disease.  

  • Rhabdoid

    Having a shape reminiscent of a rod or wand, resembling the initial stage of the larva of a threadworm.  

  • Rh negative

    The absence of Rh factor refers to the absence of genetically determined antigens present on the surface of red blood cells, which can trigger immune responses. In the case where an Rh-negative woman is carrying an Rh-positive fetus, her body may generate antibodies against the fetus’s blood, leading to a condition known as Rh disease.…

  • Rh blood type

    Blood type classification is determined by the presence or absence of the D antigen on the surface of red blood cells.  

  • RH blood incompatibility

    A condition arises when there is a blood type incompatibility between a Rh-negative mother and her Rh-positive baby, leading to the mother’s immune system launching an attack against the unborn child. This sensitization typically occurs during the delivery of the first pregnancy, where the mother’s immune system becomes responsive to the Rh-positive blood of the…

  • Reverse transcription-polymerase chain reaction

    A technique employed in polymerase chain reaction to amplify nucleic acid sequences, involving the utilization of RNA as a template for synthesizing the complementary DNA strands via the action of reverse transcriptase.  

  • Retropubic urethropexy

    A broad term encompassing the Burch procedure and its modified techniques utilized to address mild stress incontinence. These surgical methods involve stabilizing the urethra through retropubic surgery.  

  • Retinol activity equivalent

    The established unit of measurement for vitamin A is known as Retinol Activity Equivalent (RAE). It is defined as 1 microgram (mcg) of retinol, 12 mcg of beta-carotene, 24 mcg of other provitamin A carotenoids, or approximately 3 International Units (IU).  

  • Retinal and retinoic acid

    Within the body, active variants of vitamin A are synthesized from dietary precursors.  

  • Retention treatment stage

    The phase of recuperation that follows orthodontic treatment, wherein retainers are potentially employed to stabilize the teeth.