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260            PART 4  ■  Erythrocyte Disorders




               S          (NHANES III)                                                 %                                                        m                          m

                                                     ,        m                  %                                             m        k                              . I              m             ,

                      ,             m   .                                                                                                                  x m              µ  /k  /  . I

                    V                                                        x                                                m                     m                      . B

                  m                      . U           %     A          Am                                                                                           -

                                                           m            . I                  z                                      m  k                       m                m                      .

                      ,          ,                    ,               m                                                         B         m  k                ’   m  k                                      .

                  m                             m                               m   (MCV)                                   .  m                          ,                                                      -

                                . P                            m  z          ,          ,                 -                         . T                                    m           m  k         q

                    m         ,                 x                   m                    m   . E                                ,               %                   ,                         m

                                                                    m                          ,              -                                            . I               ,                       %

                       ,     k              ,                      f                    m                                                 ’  m  k                  . A          %

                   m                              , A          Am                                  -                           m       -                   ’  m  k     m                                m

                                    m                           m                                                                               . R

               W                        . F                                                                 -                        m  k           k        .

                         m                                                       ,              ,             .
                                                                                                                           Dietary Iron


               Physiology                                                                                                  A       x m             %                m                          m

                                                                                                                                 ,          (F  ),                                          m         . T
                                                                                                                                                    +
               H  m                                       m                    k         m                                    %                                         m         m         ,

                        . T                                   .         .                        . N   m                      m            m           m                  m                  m     .

                                        m    ,   m                                  m  /  . U                                   H  m                   m

                   m            m           ,                     m                       x       -                                 k           H                         m,

                                                      m       GI                            ,  k                                           -                    m     x. I               ,

                       m          ,                     m                     m   ,           .                                               k           H

               A                                                 m                        ,                                m         . I  m                     z                              m

               m    m      m        (    .   µ  /L)                     .          m      -                                                    z    ,                                 m     x             m

                                      ,                m                           m                                       m                            m              .

                     m  /  . H           ,                                                                                      H  m                                      ,

                                  ,                 ,                      . S  m       m        q                                                                             ’

                         m                                               m                            .                                                   . T               m

                    Operational iron                                       x                                               m               ;               , m                                             -

                                m                    . I       m              , m              -                              m  ,                     k

                                                           m                       m                                                 . A                                                                         m

               m              . M                                                                                                ,          m     ,      ,                  . I

                  m             m                                                             . I        -                                     ,                    ,   x         ,              ,                         ,

               m             ,     m                                                                 -                                               ,                         . H  m                       m

                                    . A                                                                                                                         m         . F      x  m     ,

                                      ,       -                                              m           -                         x m                    m          m                 m                m

                                             m             z             m                           .                     m x     m                                                              m     ,      ,


                                                                                                                                     k                            m  k,            ,                               ,
               Iron Needs in Infants and Children                                                                                    . T                               m          . O          j              -


               I              m                      m,                             q            m     -                                                           m              m                 m     ,

                                f                           x m            m                                                                                             %.

                        . I              m                  ,                                                                   F                                 k              (F   .     .  )

                              -    m              ,                                                                        (F  )        ,     m
                                                                                                                                  +
                                     m     . P   m                                                                         (F  )        . T           m                      ,                               -
                                                                                                                                  +
                                                                         m,                                                                ,                                  ,                        ,                  -

                            m                       ,                 m                         m                                                                                           . G         j

                                        -    m           . I                                                                             m                                                           m

                        m                             m                   . I            k   m                                            . T            H                j        m  k                   -

                         m                     x m              m                    k         m                                      m     m            -                  m

                                                                       . I                  m                                         . H           ,                                                          m      .

                            m                                            x                                                      M                                    m           m                           -

                                                                                   ’  m  k,                                   m                 j  j    m,                                                .

                               m                         . A       x m                                                     A                          GI                                                        m

                                                                                   x               m                       j                                               ,                  m
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