Rh System

In addition to the antigens present in the ABO System, red blood cells sometimes have another antigen, a protein called the Rh factor.

Description

The Rh System  is a CODED CLINICAL ENTRY.

In addition to the antigens present in the ABO System, red blood cells sometimes have another antigen, a protein called the Rh factor.

  • If the Rh factor is present, the PERSON's blood group is RhD positive;

  • If the Rh factor is absent, the PERSON  is RhD negative.

This means that a PERSON  can be one of eight blood groups:

  • A RhD positive (A+)

  • A RhD negative (A-)

  • B RhD positive (B+)

  • B RhD negative (B-)

  • O RhD positive (O+)

  • O RhD negative (O-)

  • AB RhD positive (AB+)

  • AB RhD negative (AB-).

For further information on the Rh System, see the NHS website at: Blood groups.

Also Known As

This NHS business definition is also known by these names:

Context Alias
Full name Rhesus Blood Group System

Where Used

Type Link How used
Attribute PERSON RHESUS FACTOR references in description Rh System
NHS Business Definition Rh System references in description Rh System