NRCMA Exam Dumps : Nationally Registered Certified Medical Assistant

Blood type O negative is considered the universal donor because it can be transfused to patients of any blood type. This is due to the absence of A and B antigens on the surface of red blood cells, which reduces the risk of an immune reaction. However, type O negative individuals can only receive blood from other O negative donors. Universal donors are crucial in emergency situations where there may not be time to determine the recipient's blood type. Type AB positive is considered the universal recipient because individuals with this blood type can receive red blood cells from any blood type.

Carbohydrates are classified into three main groups based on their chemical structure and complexity: monosaccharides, disaccharides, and polysaccharides. Monosaccharides are the simplest form of carbohydrates, consisting of single sugar molecules like glucose and fructose. Disaccharides are composed of two monosaccharide units linked together, such as sucrose and lactose. Polysaccharides are complex carbohydrates consisting of long chains of monosaccharide units, examples include starch, glycogen, and cellulose. These classifications are essential for understanding carbohydrate digestion and metabolism.

References:

Biochemistry by Berg, Tymoczko, and Stryer

Essentials of Human Nutrition by Jim Mann and Stewart Truswell

The termselfrefers toauto. This prefix is used in medical terminology to denote self or same, as seen in words like autoimmune (where the immune system attacks the body's own cells) and autopsy (self-examination of a body after death).

References:

Mosby's Medical Dictionary (10th ed.). (2017). Elsevier.

Stedman's Medical Dictionary (28th ed.). (2006). Lippincott Williams & Wilkins.