In addition to the A and B antigens, there is a third antigen called the Rh factor, which can be either present (+) or absent (â). In general, Rh negative blood is given to Rh-negative patients, and Rh positive blood or Rh negative blood may be given to Rh positive patients.1  The universal red cell donor has Type O negative blood type. 2  The universal plasma donor has Type AB blood type.n addition to the A and B antigens, there is a third antigen called the Rh factor, which can be either present (+) or absent (â). In general, Rh negative blood is given to Rh-negative patients, and Rh positive blood or Rh negative blood may be given to Rh positive patients.
Follow Following Unfollow Pending Disabled. A Honor Society of Nursing (STTI) answered. Symptoms of lentigo maligna melanoma are usually large, flat, irregularly-shaped tan patches on the skin. These growths usually form on sun-exposed skin on the nose, cheeks, ears, and elsewhere on the head and neck.
Lentigines are due to localised proliferation of melanocytes. The most common type, solar lentigines, arise in middle age and also result from sun damage (age spots). They are most often found on the face and hands, and are larger and more defined than freckles. Lentigines tend to persist for long periods and don't disappear in the winter (though they may fade). The correct term for a single lesion is solar or actinic lentigo.