- Many systems have been discovered to differnetiate bloog groups,the most famous system is ABO system.
- ABO system represent antigenic components on the surface of RBCs according to which
this system was made.
- O RBCS means that there is no antigens on the surface of RBCs so we can give O RBCS
to all other types of RBCs groups.
- B RBCS means that there is B antigens on the surface of RBCs so we can give B RBCS
Only to B person or AB person.
- A RBCS means that there is A antigens on the surface of RBCs so we can give A RBCS
Only to A person or AB person.
- AB RBCS means that there Are both A,B antigens on the surface of RBCs so we can give AB RBCS Only to AB person.
Wednesday, April 15, 2009
- Blood groups - ABO system.
Sunday, April 5, 2009
- Disability in geriatrics.
-Morbidities and injures in old age interfere with physical activities , mental and psychologic behavior.
- And associated with variable degrees of disabilities from so mild and hardly noticed to sever and complete disabilities.
- Causes of (disabilities) handicapping in old age = 10 I :-
- Intellectual Impairment (dementia,...etc)
- Impairment of vision & hearing.
- Immobility.
- Instability causing repeated falling.
- Inanition(loss of teeth)causing malnutrition.
- Infection.
- Incontinence.
- Impotence.
- Iatrogensis.
- Isolation causing psychological disorders.
Thursday, March 26, 2009
-Sudden Infant Death Syndrome.
Sudden Infant Death Syndrome.
(SIDS) Or COT death
(SIDS) Or COT death
Def:- Sudden unexpectrd death in infant of appearant good health,without giving a commonly accepted cause at autopsy.
The cause:- undefinite but may be:-
The cause:- undefinite but may be:-
- Suffocation.
- Infections:fulminant viral infections.
- Impaired respiratory reflexes.
- Diet : Improper diet causing nutritional deficiences or hypernatremia.
- Sensetivity to milk proteins.
- Cardiac conduction disorders.
- Co or Co2 poisoning.
- Overlying in the early life.
- Thermal: Hyper or hypothermia.
*Features of the syndrome:
- Age: () 2weeks and 2 years with a peak 2-3 months of life.
- Sex : males more than females.
- Social level: low socioeconomic level more than high socioeconomic level.
- Whether: cold winter more than hot summer.
- Twins more than single babies due to:
- increase icidence prematurity.
- low birth weight.
Friday, March 20, 2009
- Important Points in Nutrition.
- Animal milk is poor in:-
*Vitamins:-
Vit D
Vit C
Thiamine (Vit B1).
*Minerals:-
Zinc
Iron
*Essential fatty acids
--------------------------------
- Vitamins syenthesized by Intestinal flora:-
Vit K2
Vit B6
Folic acid
Niacin
--------------------------------
- Nutritional Bone diseases:-
Rickets (Vit D deficiency)
Osteomalacia (Ca deficiency)
Osteoprosis
Dental Caries (Ca,fluorine deficiency)
--------------------------------
- Nutritional Anaemia:-
Iron ( hypochromic microcytic anaemia)
Vit B12 (megaloblastic anaemia)
Folic acid (megaloblastic anaemia)
Enjoy...
Dr Ibrahim Samaha
Monday, March 16, 2009
- Muscles.
-Types :-
There are 3 types of muscles each type of muscles has its specific structural and functional unit which is called muscle fiber ( cell):-
1- skeletal muscle has skeletal muscle fiber.
2- cardiac muscle has cardiac muscle fiber.
3- smooth muscle has smooth muscle fiber.
- Innervation of the muscles:-
*skeletal muscle fiber has somatic innervation.
* both cardiac muscle fiber and smooth muscle fibers have autonomic innervation.
so
-skeletal muscle fiber is under voluntary control
- both cardiac muscle fiber and smooth muscle fibers are under involuntary control.
There are 3 types of muscles each type of muscles has its specific structural and functional unit which is called muscle fiber ( cell):-
1- skeletal muscle has skeletal muscle fiber.
2- cardiac muscle has cardiac muscle fiber.
3- smooth muscle has smooth muscle fiber.
*skeletal muscle fiber has somatic innervation.
* both cardiac muscle fiber and smooth muscle fibers have autonomic innervation.
so
-skeletal muscle fiber is under voluntary control
- both cardiac muscle fiber and smooth muscle fibers are under involuntary control.
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